OzVMX Forum
Marque Remarks => Spaniards (Bultaco, Ossa, Montesa etc) => Topic started by: Alisdair on January 03, 2014, 08:43:13 pm
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Pulled my father's 78' Frontera 250 out of the shed after 20 years of it sitting in there(Does have light surround, I took it off). He bought the bike in milk crates.
Rebuilding most of the bike, hope to take it to some events with my dad. Also turns out this bike is a 6 speed.
(https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-frc3/q71/s720x720/969931_163332480520074_788864128_n.jpg)
(https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-frc1/q77/s720x720/1002327_163339947185994_396048802_n.jpg)
(https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-prn2/q71/s720x720/1457608_200884473431541_2056300180_n.jpg)
(https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-prn2/q77/s720x720/1471287_204534096399912_669803183_n.jpg)
(https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-prn2/q71/s720x720/1511207_208976462622342_1317591856_n.jpg)
Before and 1/2 way through
(https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-frc3/q71/s720x720/1533952_211697772350211_888089311_n.jpg)
Have to sort out timing, sort out the carb and other small things
Might be interested in parts for this model if anyone has some
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I like the flash alloy tank .
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i'm struggling with the 2nd picture up :o,i've had too much merlot i'm thinking ;D,is it gear,or primary chain driven 6 speeder?, :P
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I reckon these Fronteras are a great looking bike but part of that look is the original tank.
I like the alloy tank but I'm not sure I would use it on this model, still, it's your build so do as you please.
The rebuild seems to be coming along nicely, will we see you both at a Vic Vinduro this year?
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The 370 is nice too . Iain
(http://i1134.photobucket.com/albums/m612/Iain_Cameron/IMG-20130129-00175.jpg)
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i'm struggling with the 2nd picture up :o,i've had too much merlot i'm thinking ;D,is it gear,or primary chain driven 6 speeder?, :P
Reversed image?
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Really want to go to some Vinduros but I don't know of many that are in/close to QLD (I live near Brisbane)
Primary chain 6 speed, compared bottom end it to a PURSANG 125 and there are heaps of small differences throughout it.
(https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-ash3/1425241_207236916129630_104342132_o.jpg)
(https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-frc3/1491558_207236822796306_1995620415_o.jpg)
Good looking 370, any idea on the numbers made?
The 250 motor was running a 125 flywheel and motoplat for some reason, took some serious digging through the shed to find the original.
There is a pin hole on the top of the original fuel tank, I am going to use the aluminum tank until I repair it
Need to fix the hole and put some sort of sealer though the fuel tank.
I am not 100% sure if I am going to repaint tank and side panels, as I don't want to worry about damaging the paint just yet.
I am aiming for this bike to be as original as possible, so far just about all the bolts in the bike are ''Bultaco'' bolts.
Missing a few things on it, like the light, speedo center stand and original shocks
Going to see if I can get spark today, but its bloody 42°C
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Cool project....I always liked those blue Fronteras.
i'm struggling with the 2nd picture up :o,i've had too much merlot i'm thinking ;D,is it gear,or primary chain driven 6 speeder?, :P
Merlot's a very metrosexual wine choice Mick...I always had you figured for a flagon port kind of bloke ::). How'd you go with that silver metalflake Trackmaster tank Jimmy took up to you Mick? Is it a suitable mould candidate without flucking up it's nice gelcoat ?
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Not getting any power from the bloody thing, going to get my Dad to look at it.
Hopfully the motoplat hasn't shi* itself.
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I've got a few spare tanks in my garage, as I am doing up the same bike and also a Gold medal..(mk10), let me know what you need. Those old fibreglass tanks deteriorate and need to be re- fibreglassed from the inside as well as the outside. I've also got a spare seat with new cover. Regards lyle.
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That is great! Roughly how much would you be after for a tank just for future reference? I guess it would allow me to fully repair one.
My seat base isn't the best, going to require some welding and some fiberglass to strengthen it up.
I am trying to keep the bike cost down to a minimum .
Plastics, genuine seat cover, fork seals, rings and a filter are the things I have bought
(guess there is really not that more anyway).
(https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-frc3/q88/s720x720/996675_207236442796344_1309286911_n.jpg)
(https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-prn2/1476073_204534086399913_2014725881_n.jpg)
Would like to see some pictures of your bike just to see how everything should look on it.
Looks like the 250 motoplat isn't working, not getting power from it.
Going to put the 125 flywheel and motoplat back on it until I can figure out why :-/ Maybe that is the reason it had it on in the first place.
Going to be a really snappy bike
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(https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-ash3/q84/s720x720/1460067_205718149614840_1595357137_n.jpg)
(https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-ash4/q73/s720x720/1457501_204529769733678_2069809239_n.jpg)
(https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-frc3/q81/s720x720/1477440_204533959733259_384478663_n.jpg)
(https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-prn2/q80/s720x720/1522084_207236742796314_797424780_n.jpg)
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Seems that it might be the coil. Now to figure out how to test it.
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Alisdair, Vinduro PanPac Masters Games 1st and 2nd Nov. on the Gold Coast
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Thanks heaps supersenior 50
Have something to aim for now
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Cool project....I always liked those blue Fronteras.
i'm struggling with the 2nd picture up :o,i've had too much merlot i'm thinking ;D,is it gear,or primary chain driven 6 speeder?, :P
Merlot's a very metrosexual wine choice Mick...I always had you figured for a flagon port kind of bloke ::). How'd you go with that silver metalflake Trackmaster tank Jimmy took up to you Mick? Is it a suitable mould candidate without flucking up it's nice gelcoat ?
as long as it's red Firko,bottle size/shape dosen't factor in ;),already done a tank top from mold,(metalflakes safe!!)
Alisdair,is that "caliper black" paint on the outer cases,looks good 8), :P
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Thanks mate
It is some sort of high temp paint, cannot remember what it is called, label was unreadable.
I sandblasted the cases, then baked the paint on, hopefully it stays on for a while....
And top tank from mold?
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Any new developments Alisdair? J
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Seems that it might be the coil. Now to figure out how to test it.
Try
http://www.ktm495.mxbikes.com/motoplat.htm
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Finally got spark, Coil was buggered.
Only a few things to sort out,
Airbox->Carb boot
Have a EI/Lectron carb on it, air intake side is massive, roughly put on with some dodgy hoses.
(https://fbcdn-sphotos-b-a.akamaihd.net/hphotos-ak-prn1/t1/1549506_222514831268505_1870953792_n.jpg)
Expansion chamber has a bunch of holes in it. Metal is really thin, I think it will be constantly being welded. Any suggestions what is best to paint/coat it with?
(https://scontent-a.xx.fbcdn.net/hphotos-prn1/t1/1013522_222530127933642_812645288_n.jpg)
Seat base is really rusty, going to re weld it and fiberglass where the foam goes to strengthen it up
(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-ash3/t1/15084_222514844601837_423297728_n.jpg)
(https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-frc3/t1/1504547_222514861268502_1347283450_n.jpg)
Put that Caswell Fuel tank repair kit through the tank, happy with how it turned out. Took a while tapping threads though, didn't put the bolt in far enough....
(https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-prn1/149315_222514901268498_600284787_n.jpg)
Will paint the fuel tank sometime in the future.
(https://fbcdn-sphotos-a-a.akamaihd.net/hphotos-ak-ash3/t1/73186_222514917935163_2058734610_n.jpg)
Currently trying to get my IT465H reliable, previous owner **cked around with it. Rear rim is rooted, every spoke is loose, and I have soaked them in CRC for weeks, only other option I can think of is adding heat to them, however the rim is a 19inch, I want 18. Thought that a YZ465G rear rim would fit, axle is smaller and brakes are slightly bigger.......
(https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-ash3/q71/s720x720/1521306_205934099593245_70038419_n.jpg)
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Throw it aside and concentrate on the Bulty! J
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Hey Alasdair, what is the thread size and pitch of the fuel tap / bolt into the f/glass tank?
I have acquired a Bandido to tidy up.
Nice job you are doing as well, one day when I crack the code I'll have to post my pictures.
Martin
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I am pretty sure the fuel tap was 12mm with 1.5 pitch. would definitely double check before you do anything :)
Waiting for my father to weld up the expansion chamber before I continue with the Bultaco. Also need to figure out how I am going to make the airbox boot.
Annoying that little things are slowing me down
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Air box boot can be purchased on EBay from overseas, a little pricey though, but that's life.
I will be purchasing one myself soon enough. ..LYLE
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Yeah fuel taps, they are tapered as well will test a few bolts before I go to the bolt shop.
Air filter boots, they are a problem as well. I have l looked at some silicone hoses at Supercheap, but bought nothing.
We use DEKTITES ,for sealing penetrations of conduits and pipes through metal roofs, you can buy them from plumbers suppliers or even Bunnings.Might be the go.
Anyone tried INMOTION in the UK for air filter hoses etc.Starting to see complaints about Frankie Mountain parts on Delphi Bultaco forum.
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I have the original boot, only problem being it isn't large enough for the carb, it fits perfectly in the inside of the carb though.
Thinking of making a small adapter that bolts to the airbox, and allows for a larger hose to go on. (If that makes sense)
Frankiemountain? And what kind of complaints are out there?
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I think it applies mostly to replica exhausts, all his gear is quite pricey and returns would be near impossible. Me thinks he's getting a lot of his stuff made in China.
Probably safer buying from US ebay, Hugh's or Mobley.
My Montadero Amal carby has an alloy adapter araldited to the external intake side to suit the hose. Looks original so your solution should work.Look at the DEKTITES they can be trimmed down to suit.