OzVMX Forum
Marque Remarks => Yamaha => Topic started by: jimg1au on November 01, 2009, 11:34:48 am
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just got it today.needs some work will be ready for dirt track next year
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I always said that you were a man of taste and sophistication, Jim.
When you got four-strokes and Hondahs, it made me wonder if I was wrong - but now that you've got a 125X, I can breathe easy again.. :)
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Hey Jim, you like yammies too... If you are going to the Club race at nepean this sunday, Is it possible to bring the backing plate with you -ansd see what we can work out,
Brett
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brett
wont be there
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OK...
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this is my yz125x
(http://i414.photobucket.com/albums/pp221/jimg1au/my%20yamaha%20yz125x/yz125x.jpg)
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(http://i414.photobucket.com/albums/pp221/jimg1au/my%20yamaha%20yz125x/yz125x1.jpg)
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(http://i414.photobucket.com/albums/pp221/jimg1au/my%20yamaha%20yz125x/yz125x2.jpg)
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They are very light weight bikes, l had a white model the same but it was a 100cc.
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david i have had the spring wound to suit me it is good.will be used for dirt track
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Looks good Jim. Wish I had one, to go with my 1976 YZ80C & YZ250C.
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WTF is that silencer off?! IT175? Its a nasty thing to do to a 125 MXer!
Otherwise, looking good. :)
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Way to go mate
Tight nuts
Ji
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it is a gen part on the usa web list optional muffler
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http://www.yamaha-motor.com/sport/parts/home.aspx
nathan check this page out its that part no
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thats a great lookin bike mate!
looks like a nice yz fork/part collection in he background too ;D
i just got my X forks back and all shiney
(http://i389.photobucket.com/albums/oo331/steveophotos/yz125x/forks2.jpg)
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cool stuff jim, I'll have to get my act together and get pic of mine on here.
How much did you pay for those unobtanium rubber caps Steve?
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cool stuff jim, I'll have to get my act together and get pic of mine on here.
How much did you pay for those unobtanium rubber caps Steve?
$30 more than a set that turned up on ebay the very next week ::)
These ones are NOS tho, the others were used.
Ive been meaning to look into getting them reproduced if you were interested in a set, becuase i would like another set myself.
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thanks, but I'm not running the aircaps on mine, just coil springs and conventional caps.
I only asked cause I saw the price some of them were goinig for on ebay!! It'd be worth your while to run off a few copies and sell them though.
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yeah they were going crazy.
I am happy with the price i paid for them so i suppose thats all that matters!
theres an X on ebay described as 'some parts missing' with about a day to go and $1525 last time i checked
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They are all nice once you work out the air for the forks , I have the 125x, 250c, 400c, except the 175c anyone want to sell one iainyz
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i'm about to join this YZ125X club too.
bike should be arriving in an hour or two.
;D
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Good onya Vandy, do we need a YZ-X club ;D
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bike just arrived.
YZ125c with,
"X" tank,forks,swingarm and shock.
i got the good stuff. :)
unfortunately, i'm doing work on the house at present so the bikes are on the back seat for a bit.
pre~78, here i come......... :)
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vandiy
need a pic or 2
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jim,
i still struggle with the pic thing but it's overdue that i figure it out.
just chargin the batteries in the camera now.
soon.
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WTF is that silencer off?! IT175? Its a nasty thing to do to a 125 MXer!
have a DT175 here with the same exhaust so they were out here too.
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next thing you'll see is Vandy buying a PE175 and getting a neat haircut!
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I have a YZ125C cylinder, piston & DG head if anyone is interested.
Cheers,
K
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For a bike that everyone calls rare, there's a truckload of Xes around the place!
.... getting a neat haircut!
Neat? Understatement much?
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(http://i1035.photobucket.com/albums/a438/vandy010/ozvmx%20stuff/asbought300july2010right.jpg?)
from the right
YZ125C frame & motor with "X" forks,shock,swingarm & tank.
a good old AG175 silencer :D
and has a good aluminium throttle tube on it.
some of you may have seen it for sale at CD7.
i walked away from it there as i just didn't have the room or time for it but 2nd time round i found it too irresistable.
i remember riding a mates 125X back when i was at school and it felt like an oversized YZ80F.
needless to say that impression lasted and was also rekindled by Dj's generosity in letting me ride his Nogucci.
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(http://i1035.photobucket.com/albums/a438/vandy010/ozvmx%20stuff/asbought300july2010left.jpg?)
from the left.
just figured out this photobucket thing.
sheesh! i'm now a computer nerd... ;D
given i've got another bike i'm doing in front of this one, it'll be a little while before i make a start on it but i reckon it's a pretty good base to begin from. :)
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Looking good mick :) You will be after that Pre 78 Qld title now to go with your hatrick of pre 75 titles :)
Anyone wanna bail me outta this one :-\ it was an impulse bid ::)
http://www.trademe.co.nz/Browse/Listing.aspx?id=301836896
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You fool, did you win lotto or something?
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YZ125C frame & motor with "X" forks,shock,swingarm & tank.
Its a genuine Hairdo Replica!
Funnily enough, I've been wondering about taking my X back to original, and building my own Hairdo Replica race bike out of a C.
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Looking good mick :) You will be after that Pre 78 Qld title now to go with your hatrick of pre 75 titles :)
Anyone wanna bail me outta this one :-\ it was an impulse bid ::)
http://www.trademe.co.nz/Browse/Listing.aspx?id=301836896
Don't know if I'd call 4 bids an impulse ::)
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Looking good mick :) You will be after that Pre 78 Qld title now to go with your hatrick of pre 75 titles :)
Anyone wanna bail me outta this one :-\ it was an impulse bid ::)
http://www.trademe.co.nz/Browse/Listing.aspx?id=301836896
Don't know if I'd call 4 bids an impulse ::)
I type with a stutter ;D
My name is Bill and im an addict ::)
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Its a genuine Hairdo Replica!
the Hairdo even inspected the bike with me and guided me through the finer "replica" bits :D
Anyone wanna bail me outta this one :-\ it was an impulse bid ::)
http://www.trademe.co.nz/Browse/Listing.aspx?id=301836896
us yammy guys ain't gonna bail you out YZBill :D
just how many 125's do you have anyway?
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If anyone is after a 125x there is one in tas for sale the owner is after around 2k , its nice . if interested give me a call 0413081291 iain and ill give your no# to the guy
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does anyone know what paint color/ paint code the yellow tank is?
ive got one naked and needs covering up!
(http://i389.photobucket.com/albums/oo331/steveophotos/yz125x/frame11.jpg)
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Het Steveo247,
I have a YZ80C and had the tank re painted. Yamaha wont give you the paint code but I had it matched by a panel shop at Cleveland. It is a perfect match to a Volkswagen Beetle colour but not sure what 70's model it is. Take it to a paint shop and they will find it.
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WTF is that silencer off?! IT175? Its a nasty thing to do to a 125 MXer!
Otherwise, looking good.
the silencer is a nos californian spark arrester for the yz125x.having troble with tuning bike so back to reading the yz125x owners manual.very last page says,if bike is fitted with ca spark arrester and you DONT live in california enlarge the 9mm exit hole to 25mm and get all your power back,up untill now not overly thrilled about the little yz. in fitters shop tuesday night got 25mm hole cut saw and cut a 25mm hole were the 9mm one was.while the pipe was off retimed the bike to 1.2mm btdc as per book put pipe and muffler back on.took it out side started it up. it slouder now and what it even has some power as i road it down the street 11.00am.this looks good so back in the shed will take it out to meani monday morning to do some jetting.
rang nathan and got a i told you so but it getting better
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does anyone know if the 125C and 125X exausts are the same?
they are the same part number, silencer is different.
I'm looking for a performance exhuast for mine, and Jemco make one for the 125C but he says it wont fit the 125X?
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out to meani this morning(monday)the joys of working a/shift.goy the yz125 into 3rd 4th and 5th fast little bugger.30min of plug chops and its a little screamer.now out with the cz400 its just fine after full rebuild and some exhurst port mods.its seams faster than before.
will get first ride of 125 at the weekend on dirt track (nepean).will let you all know how it goes
jim
now 2 more bikes to get running and a 4th runner on the bike trailer
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I'm led to believe the x pipe has a slightly fatter expansion chamber
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does anyone know if the 125C and 125X exausts are the same?
they are the same part number, silencer is different.
I'm looking for a performance exhuast for mine, and Jemco make one for the 125C but he says it wont fit the 125X?
X has a larger diameter stinger. Presumably the C part has been supersceded to the X part, hence the identical part number.
If it fits one bike, it will fit the other - providing you have a silencer to match. Mr Jemco may be talking about the suitability of the pipe's shape/performance? Despite the similarities, the X is a much faster bike, with more aggressive porting and significantly bigger carby.
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mainline and nathan s thanks very much for the info!
dont happen to know where i can look for someone to custom make one?
Jamco said they can do one for the X, but he'd need the stock pipe to copy.. and that'll cost a fortune in shipping alone..
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GMC can probably modify his YZ125A pipe to suit.....they work, but you'll have to ring him in work hours....between 9.30 to 10.00 11.30 to 12.00 2.30 to 3.00 4.30 to 4.45 otherwise you wont get him, Oh, by the way he's busy building an RM125 pipe at the moment so you may have to wait a while.
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Oh, by the way he's busy building an RM125 pipe at the moment so you may have to wait a while.
Oh Davey, your pipe would have been ready ages ago but you didn't harass me enough.
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crap quality pic, but its finally coming together! and its in the middle of the lounge room ;D
(http://i389.photobucket.com/albums/oo331/steveophotos/xpaintedforks.jpg)
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Davey - when did Geoff increase his work hours - must of only been recently????
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First of April. ;D
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crap quality pic, but its finally coming together! and its in the middle of the lounge room ;D
(http://i389.photobucket.com/albums/oo331/steveophotos/xpaintedforks.jpg)
looking good Steve, handy having it the lounge when there's nothing on the tele
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super cool that you've kept the air forks too!
some people struggle with the idea of them but they're pretty unique i reckon.
keep up the good work 8)
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super cool that you've kept the air forks too!
some people struggle with the idea of them but they're pretty unique i reckon.
keep up the good work 8)
Definately keeping them, i dont go fast or jump high enough for them to affect my riding! :D
got some more done today.. it rolls around now!
(http://i389.photobucket.com/albums/oo331/steveophotos/125x2.jpg)
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I don't think it's a TV, 5 dollars thats a frosted cabinet glass door. There is a MediaCentre or PC with something on the screen!!
crap quality pic, but its finally coming together! and its in the middle of the lounge room ;D
(http://i389.photobucket.com/albums/oo331/steveophotos/xpaintedforks.jpg)
looking good Steve, handy having it the lounge when there's nothing on the tele
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yeah that is my tv, the cabinet is one of those big wide ones. you can see the nintendo next to it.
and more pics becuase i like taking them, and like posting them! 8)
a few next to my dads imported YZ 125 C.
(http://i389.photobucket.com/albums/oo331/steveophotos/yz125x/candxfront.jpg)
(http://i389.photobucket.com/albums/oo331/steveophotos/yz125x/candx.jpg)
(http://i389.photobucket.com/albums/oo331/steveophotos/yz125x/frontwheel.jpg)
(http://i389.photobucket.com/albums/oo331/steveophotos/yz125x/shockclosecback.jpg)
I still cant get over how well the VAPOUR BLASTING cleans alloy up!
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The best thing about the x and c models is as the track gets worse towards the end of the day just add more air. once you get them set up for yourself they are magic .
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The "Speedo" and "Tacho" look great - how did you restore them (if it's not a rude question).
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The "Speedo" and "Tacho" look great - how did you restore them (if it's not a rude question).
i love the look of them too!
i have not done alot to them, they were in pretty good nic. Polished the lower part when the fork legs were polished, the seals in them were replaced when the forks were done.
I want to file finish and re annodize the gold (or whatever color you would call them) top parts, as one of them has some pretty bad marks from a cable rubbing, but its hard to see in that picture.
And the rubber caps partly hide it aswell.
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I've got a C to do one day.....a few in front of it unfortunately but it gives me time to collect all the bits I need. If you need the tanks repaired properly I can do them...I cut them open on the seam, panelbeat/file finish and then weld them back up, it's the only way....I've seen some dodgy work underneath good paint jobs that where done by so called "experts". Nice bike by the way.
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with your sprocket choice, will you be running a 428 or 520 chain set~up?
and have you decided on number of teeth fr & rear?
the rear sprocket on your "X" looks to be of the flat variety while the one on your Dads is dished.
is it the same rear hub?
so many questions...
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my sprockets are flat and 520 chain
put a 51 on rear but it is a little too big had to take off the chain guide for it to fit
ran 13 45 at the dirt track nats in griffith it was perfect for that track will go 14 45 for nepean
jim
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I've got a C to do one day.....a few in front of it unfortunately but it gives me time to collect all the bits I need. If you need the tanks repaired properly I can do them...I cut them open on the seam, panelbeat/file finish and then weld them back up, it's the only way....I've seen some dodgy work underneath good paint jobs that where done by so called "experts". Nice bike by the way.
thanks for that, i will probably need a tank done in the future. For now i have a different one ill be using on the bike that doesnt need any repairs.
with your sprocket choice, will you be running a 428 or 520 chain set~up?
and have you decided on number of teeth fr & rear?
the rear sprocket on your "X" looks to be of the flat variety while the one on your Dads is dished.
is it the same rear hub?
so many questions...
I have put minimal thought into the sprocket and chain options so far, i think the rear on it is a 52 and i will just put on whatever front we have laying around untill its finished and we can change it later!
The rear X sprocket is flat, and the C is dished. I think the A B C are dished and X D etc went to flat?
Can get a picture of either of them if you like, or pictures of anything else..
Ask away with more questions mate, these bike were built 8 years before i was born so if i dont know the answer, dad or someoneon here will!
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I think the A B C are dished and X D etc went to flat?
Yep.
And to be a real train-spotter:
The A & B have 8mm bolt/stud threads, while the C went to 10mm. The A/B hub had two external ribs, while the C has four (possibly the other way 'round, but I'm pretty sure that's right).
The D+ hub is different to the X hub - the later ones push the sprocket even further away from the spokes and won't fit in a A ~ X swing arm unless you machine them back down to the X-spec.
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I think the A B C are dished and X D etc went to flat?
The D+ hub is different to the X hub - the later ones push the sprocket even further away from the spokes and won't fit in a A ~ X swing arm unless you machine them back down to the X-spec.
are you sure about that? The X hub looked the same as the later ones to Vandy and myself when we were comparing, which would explain why the X doesn't run the dished sprocket like the earlier hubs?
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are you sure about that? The X hub looked the same as the later ones to Vandy and myself when we were comparing, which would explain why the X doesn't run the dished sprocket like the earlier hubs?
Absolutely - I'd even bet the value of your hair-care products on it.
The distance from the sprocket mounting face to the inside face of the spoke flange is 26mm for an X. For a D+ hub, it is more like 34mm (don't know that one exactly, because there's been no need).
Interestingly enough, on the D+ hub, cast into one of the recesses between the sprocket mounting studs, is "1G8" - the X prefix, making it totally indistinguishable from an original X hub after machining.
An X hub (or machined down D+ hub) will allow you to fit a flat sprocket to an A/B/C, FWIW.
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some more happenings. not a great deal tho, motor will be back together soon.
got bars, seem a bit wide tho.
levers, perches, front brake done.
(http://i389.photobucket.com/albums/oo331/steveophotos/yz125x/frontwheel-1.jpg)
(http://i389.photobucket.com/albums/oo331/steveophotos/yz125x/barscontrolseft.jpg)
(http://i389.photobucket.com/albums/oo331/steveophotos/yz125x/framecdi-1.jpg)
if anyone has a correct gear lever that i could have/buy/swap for id be really happy! If not ill get one from fleabay i suppose.
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looking good! i thought I was catching up but you're leaving me behind.
You might want to adjust your fork boots though, looks like they've had a big day at the races ;D
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looking good! i thought I was catching up but you're leaving me behind.
You might want to adjust your fork boots though, looks like they've had a big day at the races ;D
haha yes it seems they have!
some things we have noticed that differ on the c and x models, that we didnt know before are
Different footpegs
different front brake cable, x being around 30mm longer
the X has more frame bracing around the rear engine mount, where the C is know for cracking in this area
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now that I can load pici's this is my yzx(http://i1134.photobucket.com/albums/m612/Iain_Cameron/DSC_0011.jpg)
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buying a house at the moment so not alot happening with my X but the engine should be together finally in the next fortnight just waiting for a bearing from the yanks!
(http://i389.photobucket.com/albums/oo331/steveophotos/Mobile%20Uploads/17032011529.jpg)
(http://i389.photobucket.com/albums/oo331/steveophotos/Mobile%20Uploads/17032011527.jpg)
(http://i389.photobucket.com/albums/oo331/steveophotos/Mobile%20Uploads/21032011554.jpg)
(http://i389.photobucket.com/albums/oo331/steveophotos/Mobile%20Uploads/26032011563.jpg)
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Looks great mate. You are doing an awesome job 8)
Are you going to paint the cases after you put them together or before ?
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Looks great mate. You are doing an awesome job 8)
Are you going to paint the cases after you put them together or before ?
i was thinking after. think there will be any problems?
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also, mmmmmm nos. ;D
(http://i389.photobucket.com/albums/oo331/steveophotos/Mobile%20Uploads/02032011469.jpg)
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Looks great mate. You are doing an awesome job 8)
Are you going to paint the cases after you put them together or before ?
i was thinking after. think there will be any problems?
Nah - not really. I have done a few now and learnt not to paint them before you put the bearings in ( when you heat up the cases with a heat gun the paint blisters). Kind of learnt not to paint them after you put the cases together too. Unless you are meticulous with the sealant between the cases the paint don't stick to any place you may have accidentally wiped the sealant and it is an absolute bitch to get rid of - use wax and grease remover - acetone doesn't take off silicone. I have come to the conclusion that you paint them after the bearings and before the sealant. Maybe I'm just messy - I don't know ::) If you paint it after you don't get to see the join in the cases - something for the train spotters ;D ;D ;D
Nice work with the NOS barrel etc too. I bet it took some trolling of eBay and some courageous bids to get that stuff in the bag 8) 8)
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thanks for that 250H. ill see how it goes this time then kick myself later when i should have done it your way! I seem to make myself learn everything the bloody hard way! >:(
Like check the exhaust you have is actually an X exhaust, not a C. dammit now i need to find an X expanion chamber. I can see myself putting the C model one on untill i find an X.
Also tank is repaired and primer, ready for paint!
(http://i389.photobucket.com/albums/oo331/steveophotos/Mobile%20Uploads/17092010007.jpg)
(http://i389.photobucket.com/albums/oo331/steveophotos/Mobile%20Uploads/17092010008.jpg)
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can anyone with that fancy program tell me if any other bikes used the same carby as the 125 x ?
need another one if anyone has one to get rid of!
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Dont muck around with a second hand carby....buy a new one....there cheap as chips.
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from?
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These guys are great! :) :) :) :)
http://www.bear-sports.com/servlet/the-154/Mikuni-VM-Round-Slide/Detail (http://www.bear-sports.com/servlet/the-154/Mikuni-VM-Round-Slide/Detail)
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Or T.D Hatrick in Townsville, get the correct jetting spec's out of a Yamaha manual and order them with the carby....buy Aussie. ;)
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if you buy any new carby for your x you will need to get the airbox side machined down as they are way too long.or space the air box back.if you want to make original you will need to buy a s/hand one as new ones dont have the tall slide top.i dont have the gen one for mine as most ones i see for sale are the same price as the new aftermarket mikunis.dont forget they are 34mm
yzx owner
jim
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You've got it back to front Jim....you just cut the extra length off the carby with a hacksaw.....done it heeps of times.....if its a race bike, buy new.
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It is indeed for a ride/race bike. the only new ones i had seen were quite a bit more $$$ than that.
thanks very much for the info!
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i ment the air box side of the carby i did it at work on the lathe.i also have moved the air box back as well.but took the carby apart took it to work and machined off the extra
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God i have been slack.
way too many other things going on at the moment! But indeed it is ready, just waiting for a carb boot to turn up (bike came with one off a yz c) and that will be everything and i can put the rest together and start it!
(http://i389.photobucket.com/albums/oo331/steveophotos/Mobile%20Uploads/04092011098.jpg)
(http://i389.photobucket.com/albums/oo331/steveophotos/Mobile%20Uploads/04092011100.jpg)
(http://i389.photobucket.com/albums/oo331/steveophotos/Mobile%20Uploads/04092011090.jpg)
(http://i389.photobucket.com/albums/oo331/steveophotos/Mobile%20Uploads/04092011096.jpg)
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Looks good Steve, way too good to get dirty
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Looks good Steve, way too good to get dirty
yes i agree with that, we will ride it but not much at all.
Building another one that will be the ride / race bike!
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woooo got a carb boot!
(http://i389.photobucket.com/albums/oo331/steveophotos/Mobile%20Uploads/20092011221.jpg)
exhaust is on with one of the concourse parts exhaust springs
(http://i389.photobucket.com/albums/oo331/steveophotos/Mobile%20Uploads/20092011231.jpg)
getting closer.
(http://i389.photobucket.com/albums/oo331/steveophotos/Mobile%20Uploads/20092011237.jpg)
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Finally!
from this
(http://i1035.photobucket.com/albums/a438/vandy010/ozvmx%20stuff/asbought300july2010left.jpg)
to this ;)
(http://i1035.photobucket.com/albums/a438/vandy010/ozvmx%20stuff/Picture131.jpg)
(http://i1035.photobucket.com/albums/a438/vandy010/ozvmx%20stuff/Picture132.jpg)
so far it's run for about 2 minutes in the shed and sounds pretty good. can't wait to get her out for a spin to see whats she's got.
8)
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running a small rear, you goig to do some tarmac testing vandy :O)
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Nice ... different forks?
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Not bad Mr Vandy, not bad. :) I'm just surprised you didn't change your race number to #39 for this one?
You've probably mentioned it before, but what is the pipe from?
428 chain = not geared as tall as you think, Freaky.
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Very nice Mick 8) looks the goods , i really like the X model :)
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i would like to know what the pipe is off as well
bye the way nice yz125
freaky
i run a 44 on rear for dirt track on my yz125x
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#789 means you'll have to ride it on Dirt Track.
Short Circuit/Dirt Track legend Charlie Edwards' race number.
Very good resto Vandy.
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Thanks guys, pipe is a homemade "flat biscuit" special. Forks, head & carby are from the 77 125d model. Chain is a 428 set-up.
#789 means you'll have to ride it on Dirt Track.
Short Circuit/Dirt Track legend Charlie Edwards' race number.
Very good resto Vandy.
don't spose you'd have any photo's of charlie would you? As i've been using 789 for a while now
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If you go onto classic dirt track images in the Foto Forum, there are quite a few, but be prepared to search because there is about 60 pages, I know there is at least one in the last few pages.
Cheers, Steve
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vandy
not only was charlie edwards a great rider he was the best 2t tuner ever.he made 2t sing.from bantams to bultacos to as1s and tr3s all in slider frames.i saw first hand a tr3 hagon at bendigo dead last off the start but first at the finish and would destroy a brand new speedway tyre in the process.
jim
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Correct me if I'm wrong Jim but it was ridden by Brittish Speedway legend, Nigel Boocock?
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yes it was
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Thats a nice looking scooter there Vandy.....cant wait to see it in the flesh.....right side up of course. ;D
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428 chain = not geared as tall as you think, Freaky.
Pitch has no affect on ratio
Nice job Vandy, great looking bike.
What is a "flat biscuit special"? Looks like a good job on the pipe.
Pete.
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428 chain = not geared as tall as you think, Freaky.
Pitch has no affect on ratio
Nice job Vandy, great looking bike.
What is a "flat biscuit special"? Looks like a good job on the pipe.
Pete.
Hey Pete,
"Flat Biscuit" is a bit of an ongoing joke with a few of my older brothers mates.
basically, the guys that influenced me into bikes all those years ago :)
i designed,rolled,welded the pipe myself. i've done a few now and i'm sure there's better out there but i'm pretty happy with this one.
maiden ride in a very small suburban back yard yesterday to check gears & clutch and she sounds real beaut!
i think the nieghbours prefer the Briggs & Staton though ;D
as for the 428 chain,
both the 125"X" and the 125"C" run different primary gear ratio's. not that that means much to me. mine is running the primary gears from the "C" model which ran a 428 chain.
it was just what i had lying around really.
so on it went.
so hows that 400 thang coming along Pete?
any progress?
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Nice work Vandy.Are you going to re-install the original forks with canisters?
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Nice work Vandy.Are you going to re-install the original forks with canisters?
not sure yet.
the chrome sliders on the "X" forks were bent and our good old mate Nathan supplied me with the "D" model forks.
they don't quite seem to have the turning radius of the stockers and i had to dent the tank to take them. so i'll make the decision down the track.
i also have an MX125C that i'll do up at a later stage and it'll probably be the bike i'll keep of the two.
the plan was to fit the "X" cannister forks onto that.
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Pitch has no affect on ratio
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Indeed. My point was that the apparently tiny rear sprocket still has 48 or so teeth - if it was a 520 chain, a sprocket that size would probably have 35 teeth or so.