OzVMX Forum

Marque Remarks => Yamaha => Topic started by: Slakewell on July 30, 2013, 04:18:02 pm

Title: MX 125 D model
Post by: Slakewell on July 30, 2013, 04:18:02 pm
Does anyone have one of these?
Title: Re: MX 125 D model
Post by: TM BILL on July 30, 2013, 04:26:08 pm
Was there such a thing ??? I thought MX 125C was last in that line  :-\

(http://i40.photobucket.com/albums/e204/tmbill/Bills%20bikes/copyofy9_zpsdaed5d09.jpg) (http://s40.photobucket.com/user/tmbill/media/Bills%20bikes/copyofy9_zpsdaed5d09.jpg.html)
Title: Re: MX 125 D model
Post by: Nathan S on July 30, 2013, 07:12:01 pm
The Americans got some sort of stripped down, rebadged monoshock DT175 - I think it was called the DT175MX or something.

But otherwise Bill is right - the MX125C was the last of them.
Title: Re: MX 125 D model
Post by: Davey Crocket on July 30, 2013, 07:24:29 pm
I think Bill's pommy brothers started calling DT's, MX's in the late 70's, early 80's.....they had headlights and where road registerable.
Title: Re: MX 125 D model
Post by: Scootern29 on July 31, 2013, 12:41:36 pm
Here in the states the last MX model that was competitive was the MX125C pictured above which is my bike. The later ones we got were for beginners and children.

Here's a pic of a breathed on MX125C. The owner LR Watkins worked for FMF and it had the down pipe, porky head, and porting that were all FMF. He saw the photo's of mine and got a hold of me. My bike brought back memories for him.

(http://imageshack.us/a/img515/7686/copyofpicture002.jpg) (http://imageshack.us/photo/my-images/515/copyofpicture002.jpg/)

Title: Re: MX 125 D model
Post by: Iain Cameron on August 01, 2013, 07:37:30 pm
I always liked the 125c just looks good to me . Iain
Title: Re: MX 125 D model
Post by: Scootern29 on August 04, 2013, 08:26:04 am
Personally I thought the MXC was the prettiest of the Yamaha's. I may be biased though.
Title: Re: MX 125 D model
Post by: Slakewell on August 04, 2013, 04:06:45 pm
I used to ride with a guy who had one I thought it was a D model but I remember it looked like the pic above. These are not common then or hard to find?
Title: Re: MX 125 D model
Post by: rob on August 04, 2013, 04:49:09 pm
G'day guys,
Have just listed MX125 A and MX125 C sales brochures and a heap more scheduled to start at about 6.00pm for auction on ebay if you are at all interested.
( search MXMAN ROB)

Cheers
Rob.
Title: Re: MX 125 D model
Post by: TM BILL on August 04, 2013, 05:04:14 pm
Can you post a link
Title: Re: MX 125 D model
Post by: Nathan S on August 04, 2013, 05:39:16 pm
I used to ride with a guy who had one I thought it was a D model but I remember it looked like the pic above. These are not common then or hard to find?

The MX-C is a rare bike, simply because they didn't sell many. I know of three confirmed examples in Australia.
Title: Re: Brochures.
Post by: rob on August 04, 2013, 07:33:50 pm
TM Bill,
Try item numbers:
310718109191 for MX 125C
310718112444 for MX 125A

PS- Bill do you know of any OW parts over there in NZ that you can put me onto.

Regards
Rob.
Title: Re: MX 125 D model
Post by: smed on August 04, 2013, 08:00:58 pm
http://www.ebay.com.au/itm/310718109191?ru=http%3A%2F%2Fwww.ebay.com.au%2Fsch%2Fi.html%3F_sacat%3D0%26_from%3DR40%26_nkw%3D310718109191%26_rdc%3D1

 
Title: Re: MX 125 D model
Post by: kdx Geoff on August 04, 2013, 08:22:56 pm
and the MX125C brochure.

(http://i1297.photobucket.com/albums/ag23/kdxGeoff/IMAG0634_zps6931eaac.jpg) (http://s1297.photobucket.com/user/kdxGeoff/media/IMAG0634_zps6931eaac.jpg.html)

(http://i1297.photobucket.com/albums/ag23/kdxGeoff/IMAG0633_zps773c3877.jpg) (http://s1297.photobucket.com/user/kdxGeoff/media/IMAG0633_zps773c3877.jpg.html)

Geoff
Title: Re: Brochures.
Post by: TM BILL on August 04, 2013, 08:29:33 pm
TM Bill,
Try item numbers:
310718109191 for MX 125C
310718112444 for MX 125A

PS- Bill do you know of any OW parts over there in NZ that you can put me onto.

Regards
Rob.

That comes up as an auction for a MX 125B brochure not a C  ???

Sorry no OW parts i know of .
Title: Re: MX 125 D model
Post by: TM BILL on August 04, 2013, 08:33:29 pm
and the MX125C brochure.

(http://i1297.photobucket.com/albums/ag23/kdxGeoff/IMAG0634_zps6931eaac.jpg) (http://s1297.photobucket.com/user/kdxGeoff/media/IMAG0634_zps6931eaac.jpg.html)

(http://i1297.photobucket.com/albums/ag23/kdxGeoff/IMAG0633_zps773c3877.jpg) (http://s1297.photobucket.com/user/kdxGeoff/media/IMAG0633_zps773c3877.jpg.html)

Geoff

Is that your brochure Geoff ?
Title: Re: MX 125 D model
Post by: kdx Geoff on August 04, 2013, 08:58:36 pm
Yes Bill.

l also have YZ125X, 125D, YZ80C, 80D, YZ250C/400C in the one brochure, GT80D, TT500D and DT360A.

I dont recall thinking that much of Yamaha as a young bloke, was always Kawasaki and Suzuki.

Did you want a copy of one of them ?

Geoff
Title: Re: MX 125 D model
Post by: Scootern29 on August 05, 2013, 06:37:36 am
Nathan,

My MXC is only the second one I had seen. The first being in 1976 when I worked for Curnutt Shocks.

In my research of these bikes, I think there are 3 1/2 in Australia, 2 in South Africa, and probably somewhere around 15-20 here in the states. I saw somewhere recently that a person over here found 2 almost complete bikes in the last month or two. I know of 5 in California, 5 in Georgia owned by one individual, a guy who has one in Florida that he bought new, and a few sprinkled about the States. Very few parts are even available over here. I was lucky mine had all the major parts still intact, and it was living 20 minutes from my house.
Title: Re: MX 125 D model
Post by: TM BILL on August 05, 2013, 07:07:29 am
I have one in NZ  ;) ( was ex Aussie 5 yrs ago )
Title: Re: MX 125 D model
Post by: TM BILL on August 05, 2013, 07:08:53 am
Yes Bill.

l also have YZ125X, 125D, YZ80C, 80D, YZ250C/400C in the one brochure, GT80D, TT500D and DT360A.

I dont recall thinking that much of Yamaha as a young bloke, was always Kawasaki and Suzuki.

Did you want a copy of one of them ?

Geoff

Hi Geoff would love a copy of the MX125C brochure  :) happy to pay what ever its worth .

Thanks Bill
Title: Re: MX 125 D model
Post by: Scootern29 on August 05, 2013, 07:13:58 am
Cool deal TM Bill.
Title: Re: MX 125 D model
Post by: TM BILL on August 05, 2013, 07:19:13 am
They are a lovely little bike IMHO  :)
Title: Re: MX 125 D model
Post by: Slakewell on August 05, 2013, 08:43:32 am
After looking at the brochure I now see that the shocks look like the YZ 80 D ones so I guess I assumed it was a D model.
Very tidy little bike but I never new that they were made in so few numbers no wonder they were the last if they didn't sell. I wonder what happen to my old ridding buddies one? Would have been sold in north Brisbane.
Title: Re: MX 125 D model
Post by: TM BILL on August 05, 2013, 08:58:25 am
Mick that could be the one in my shed  ;) I will dig it out and put up some pics  :)
Title: Re: MX 125 D model
Post by: Slakewell on August 05, 2013, 09:06:40 am
Bill are they 5 or 6 speed?
Title: Re: MX 125 D model
Post by: TM BILL on August 05, 2013, 09:42:08 am
6 speed mick , they are like a twin shock YZ 125C  :) bit detuned but better handling IMHO and with a GMC pipe and a 34mm carb they are very competitive . ( GMC YZ125A pipe with modified tail pipe ).
Title: Re: MX 125 D model
Post by: Nathan S on August 05, 2013, 10:23:27 am
Nathan,

My MXC is only the second one I had seen. The first being in 1976 when I worked for Curnutt Shocks.

In my research of these bikes, I think there are 3 1/2 in Australia, 2 in South Africa, and probably somewhere around 15-20 here in the states. I saw somewhere recently that a person over here found 2 almost complete bikes in the last month or two. I know of 5 in California, 5 in Georgia owned by one individual, a guy who has one in Florida that he bought new, and a few sprinkled about the States. Very few parts are even available over here. I was lucky mine had all the major parts still intact, and it was living 20 minutes from my house.

The ones I know of:
1. Bill's one (now in NZ).
2. One Holeshot Buddy had for sale about 18 months ago.
3. My old incomplete one that I sold to TT5 Matt.

Tim754 said he knew of a good one in rural Vic, but he hadn't seen it for several years (and that was a few years ago), so it doesn't count as a confirmed bike (yet?).

I rode Bill's one at CD6. Great bike, but my YZ-X would eat it: Better suspension and more grunt everywhere makes up for the slightly heavier feel of the X. Might be different for a starving jockey like Bill, but for us adults :D, the X (and a YZ-D) is the better thing.
That said, I'd prefer an MX-C over a YZ-C - something about marketing triumphing over engineering...
Title: Re: MX 125 D model
Post by: Scootern29 on August 05, 2013, 10:48:39 am
Here is me on a 125X. The only time I raced a Yamaha back in those day's. They were a good desert bike but I rode Husky's.

(http://imageshack.us/a/img41/2373/42417446.jpg) (http://imageshack.us/photo/my-images/41/42417446.jpg/)

Title: Re: MX 125 D model
Post by: kdx Geoff on August 05, 2013, 10:50:00 am
Yes Bill.

l also have YZ125X, 125D, YZ80C, 80D, YZ250C/400C in the one brochure, GT80D, TT500D and DT360A.

I dont recall thinking that much of Yamaha as a young bloke, was always Kawasaki and Suzuki.

Did you want a copy of one of them ?

Geoff

Hi Geoff would love a copy of the MX125C brochure  :) happy to pay what ever its worth .

Thanks Bill

no problem Bill

will look into it this week

Geoff
Title: Re: MX 125 D model
Post by: TM BILL on August 05, 2013, 12:09:00 pm
Thanks Geoff much appreciated

Bill
Title: Re: MX 125 D model
Post by: vandy010 on August 05, 2013, 12:38:56 pm
my cousin had a near new one given to him in about 82~83~ish... in Brisbane QLD.
it was the first time i'd even seen or heard of one.
i have a frame only but will throw a few YZ125C/X parts at it with an RM125A swingarm to turn it into a complete bike.
rare? yes...
Title: Re: MX 125 D model
Post by: Slakewell on August 05, 2013, 12:55:47 pm
So I take it that YZ parts bolt directly onto the engine?
Title: Re: MX 125 D model
Post by: TM BILL on August 05, 2013, 01:03:18 pm
Sure do  :) or if your really keen a YZ 125D motor will drop right in and is still pre 78 legal but does away with that stupid 2 part gearshaft arrangement .
Title: Re: MX 125 D model
Post by: kdx Geoff on August 05, 2013, 01:05:01 pm
Bill, thats a copy of the one original brochure l have, not an original brochure.

l just wanted to make sure we're talking about the same thing ?

Geoff
Title: Re: MX 125 D model
Post by: TM BILL on August 05, 2013, 01:09:33 pm
Bill, thats a copy of the one original brochure l have, not an original brochure.

l just wanted to make sure we're talking about the same thing ?

Geoff

Yeah Geoff a copy would be great just let me know what I owe you .

Thanks Bill
Title: Re: MX 125 D model
Post by: Slakewell on August 05, 2013, 01:16:20 pm
Interesting pre 78 racer if you add aftermarket barrel and head make up a nice pipe and fit a 34mm carb. Sexy little bikes IMO.
Title: Re: MX 125 D model
Post by: mposs on August 05, 2013, 04:15:21 pm
One more ....
(http://i574.photobucket.com/albums/ss185/mposs/ProjectMX12C-Copy_zps28976928.jpg~original) (http://s574.photobucket.com/user/mposs/media/ProjectMX12C-Copy_zps28976928.jpg.html)
Title: Re: MX 125 D model
Post by: Nathan S on August 05, 2013, 04:41:15 pm
So the register is:
Bill's (NZ);
Rusty's;
TT5 Matt's;
Vandy's;
Mposs'.

-----

Motor is basically a mix of YZ-C and YZ-X. The head has a unique 565 casting - I can't remember what the differences were, but they were minor.
Title: Re: MX 125 D model
Post by: cr4ever on August 05, 2013, 06:04:33 pm
There is one MX125C here in South Australia, the owner was racing it in DT/VMX but when he realised how rare it is he put it away as it's very nice. I never even knew they existed until I saw it. Freaky knows the owner.....
Title: Re: MX 125 D model
Post by: Slakewell on August 05, 2013, 06:12:56 pm
If you played the money is little obstruction , you could get GMC to build a nice chrome molly version fit a RM B alloy swingarm , fit YZ D engine upgraded with noguchi barrell and head,YZ front end etc . be a very cool little bike. 
Title: Re: MX 125 D model
Post by: Iain Cameron on August 05, 2013, 06:20:34 pm
Another nice bit of gear is the YZ175c , same story very low numbers . There has been a YZ175 cylinder on Aust evilbay for a while now but it will not fit onto the 125x motor like most of the dt 125 \175 the YZ175 had different stud pattern . http://www.ebay.com.au/itm/YAMAHA-1976-YZ175C-New-Cylinder-/271250425283?pt=AU_Motorcycle_Parts_Accessories&hash=item3f27c905c3    Iain
Title: Re: MX 125 D model
Post by: Slakewell on August 05, 2013, 06:26:31 pm
Would these be pistons to fit?
http://www.ebay.com.au/itm/Yamaha-Fs1-piston-noguchi-motors-yokohama-/300715843702?pt=UK_Motorcycle_Parts_13&hash=item46040fa076
Title: Re: MX 125 D model
Post by: Slakewell on August 05, 2013, 07:10:59 pm
What is this odd motor beastie thing? A Yamaha fitted with no work so good ignition ? :P
http://www.gumtree.com.au/s-ad/gaven/parts/yamaha-yz125-b-motor-1975/1022608705
(http://imgc.classistatic.com/cps/blnc/130628/843r1/6234f31_20.jpeg)
Title: Re: MX 125 D model
Post by: Nathan S on August 05, 2013, 07:20:18 pm
Yeah, that'd be a Motoplat molesting that little Yammie motor.

537 = YZ125C.
Title: Re: MX 125 D model
Post by: Scootern29 on August 06, 2013, 04:50:05 am
Since this has morphed into an MXC thread, here's some questions I have and maybe you guys have the answers.

The little C had a 30mm small body carb on it stock which I was lucky to find. Would you just change the manifold for the larger carb? The reason I am asking this is that when I got the bike it had a 26mm carb rigged on it. I did not have enough room to fit a 34mm with the manifold I had because the carb hits the case and changes the airbox inlet. Would you machine off the drain cap for clearance on the case, or? Would you run a sock or pod air filter?

I am only asking in case I run across another C.
Title: Re: MX 125 D model
Post by: Nathan S on August 06, 2013, 09:09:39 am
Is your 34mm carb a Yamaha one, or generic? The Yammie ones are usually different shapes to the generic ones (spigot sizes, lengths, height relative to centre lines, etc).
A YZ125X intake manifold will solve that part of the problem, but not the airbox boot problem.

The MX-C carb is the same as YZ-C, so shouldn't be too hard to find.

The other thing to look for is a 32mm carb from a YZ-D/E/F (and maybe G?). 32 is a better size than 34, IMHO.

Title: Re: MX 125 D model
Post by: Scootern29 on August 06, 2013, 09:48:28 am
Nathan,

Actually the MXC carb is not the same as the YZC. At least over here they aren't. The YZC carb is much bigger. I have both carbs. The MXC has a one year 30mm short body from the factory. Over here they are unobtainable. I just happend to have one at my brothers house from years ago that I didn't know I had. The parts fiche even shows the different part #'s. The MXC carb is a 565 and the YZC is a 537. I spent two months calling everyone you could think of and there are none to be found over here. One of the contacts owns to of the little buggers.
Title: Re: MX 125 D model
Post by: Iain Cameron on August 06, 2013, 09:52:18 pm
Scootern29 the Yamaha bible lists the carb as VM30SC it also uses the same as the 73\74 mx250 carb VM30SC also the YZ100c ,IT 125 G\H ,DT3 250 73 . gives you a few more places to seek . The YZ125c  was a VM34SS  .  Nathan the D E F G used a VM32SS carb . Iain
Title: Re: MX 125 D model
Post by: Nathan S on August 06, 2013, 10:15:54 pm
YZ125C had 30mm carb, it was the 125X that had the 34.
Thanks for the clarification on the 125G. :)
Title: Re: MX 125 D model
Post by: Iain Cameron on August 06, 2013, 11:26:40 pm
That's interesting Nathan Ive just checked my 125c owners book and its as you say but checking on my Yamaha stats book it has the VM34SS !!!!! . mmmm someone has made a cock up somewhere . Iain
Title: Re: MX 125 D model
Post by: Scootern29 on August 07, 2013, 05:08:32 am
Thanks for the clarification guy's. It seems half the time the part#'s and other data just don't jive between reference materials. Thank heavens we aren't dicussing parts on CZ's.