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Author Topic: MX 125 D model  (Read 13247 times)

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Offline vandy010

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Re: MX 125 D model
« Reply #30 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...
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Offline Slakewell

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Re: MX 125 D model
« Reply #31 on: August 05, 2013, 12:55:47 pm »
So I take it that YZ parts bolt directly onto the engine?
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TM BILL

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Re: MX 125 D model
« Reply #32 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 .
« Last Edit: August 05, 2013, 01:05:01 pm by TM bill »
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Offline kdx Geoff

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Re: MX 125 D model
« Reply #33 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
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TM BILL

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Re: MX 125 D model
« Reply #34 on: August 05, 2013, 01:09:33 pm »
Quote from: 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

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

Thanks Bill
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Offline Slakewell

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Re: MX 125 D model
« Reply #35 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.
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Offline mposs

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Re: MX 125 D model
« Reply #36 on: August 05, 2013, 04:15:21 pm »
One more ....
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Offline Nathan S

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Re: MX 125 D model
« Reply #37 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.
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Offline cr4ever

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Re: MX 125 D model
« Reply #38 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.....
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Offline Slakewell

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Re: MX 125 D model
« Reply #39 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. 
« Last Edit: August 05, 2013, 06:16:10 pm by Slakewell »
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Offline Iain Cameron

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Re: MX 125 D model
« Reply #40 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
« Last Edit: August 05, 2013, 10:25:42 pm by iainyz »
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Yamaha tragic ; dt1, rt1, dt2, rt2, dt2mx , rt2mx , mx250, mx360,sc500, 74dt125, yzx125, yzc250, yzc400, yzd250, yzd400, yzh250, yzh80 , dt100 , xr75 ko xr80 03 , it175 82 . Not a member of any club

Offline Slakewell

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Re: MX 125 D model
« Reply #41 on: August 05, 2013, 06:26:31 pm »
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Offline Slakewell

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Re: MX 125 D model
« Reply #42 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
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Current bikes. KTM MC 250 77 Husky CR 360 77, Husky 82 420 Auto Bitsa XR 200 project. Dont need a pickle just need to ride my motorcickle

Offline Nathan S

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Re: MX 125 D model
« Reply #43 on: August 05, 2013, 07:20:18 pm »
Yeah, that'd be a Motoplat molesting that little Yammie motor.

537 = YZ125C.
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Offline Scootern29

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Re: MX 125 D model
« Reply #44 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.
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