Author Topic: I have a 74 VR250!  (Read 6420 times)

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mx250

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Re: I have a 74 VR250!
« Reply #15 on: April 28, 2009, 09:06:33 pm »
I can't work at anything from your pixies. Here's an explored view for the H6 - same wheel, same engine, different swing arm. From the best I can make out there's only one spacer and that's on the left. The VB shows similar.


All Things 414

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Re: I have a 74 VR250!
« Reply #16 on: April 29, 2009, 08:36:38 am »
That's a pretty standard problem with that era of Monty (the damage to the casing in front of the kickstarter). Not a bad fix either! It certainly will be stronger than the aluminium that was there. No real drama at all........ :-\
« Last Edit: April 29, 2009, 08:38:33 am by All Things 414 »

Offline holeshot buddy

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Re: I have a 74 VR250!
« Reply #17 on: April 29, 2009, 10:18:11 pm »
i am with ross that damage is very common on
montys
if it looks like it will do the job leave it alone ;)

dont let kickstart flick of boot and return
thats what does the damage ;) ;D
follow me to first turn

Offline Nathan S

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Re: I have a 74 VR250!
« Reply #18 on: May 14, 2009, 11:25:08 pm »
Overdue update - but then again, I haven't done much to it because I'vebeen trying to get bikes ready for the CRC.

Got the barrel off tonight. Big end has no play, little end had no play, but there's noticable (not shocking) wear on the gudgeon. Rings like new.

Will start spending money once I've made it past CRC.


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Offline Nathan S

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Re: I have a 74 VR250!
« Reply #19 on: May 19, 2009, 09:01:39 pm »
Anyone want to pint me in the right direction for gearing?
Bike came fitted with 13-54, I have new 13-56.

There's a few rear sprockets on Ebay - 44T and 48T. Haven't found any fronts that aren't 13T.



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Offline oldyzman

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Re: I have a 74 VR250!
« Reply #20 on: May 19, 2009, 09:18:17 pm »
Hey nathan,
Good to hear the big end has no play, what about the mains? Anyway mate I think i will be here for you as moral support only. As i think you have big b---s takin on that project and wish you good luck...
OLDYZMAN
I have a soft spot japanese mxers with aluminium tanks. Two stroke classic Dirt Track...

Offline cappra

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Re: I have a 74 VR250!
« Reply #21 on: May 20, 2009, 09:05:57 am »
Standard gearing on the VR was 11 x 56.

Offline DG 26

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Re: I have a 74 VR250!
« Reply #22 on: June 17, 2009, 06:58:41 pm »
G,day Nathan
Did you take the monty out for a ride on the weekend ?  ;)

Offline Nathan S

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Re: I have a 74 VR250!
« Reply #23 on: June 17, 2009, 07:21:51 pm »
Um... no...  :D

Minor update:

I bought a parts bike at CD6. Its a 54M (75 Enduro, right?) with a Cappra motor. Motor is toast - been sitting in the weather for too long and now the crank is now a solid lump of rust.
However, the clutch stuff is all pristine, and the gearbox feels OK.
The forks and triples will be used on the pre-65 Yamaha racer.

Its now in a zillion bits, so it takes up less room.

The actual project bike has had money spent on it, but not much time.

Quick update on money spent so far. All prices include postage (where applicable):
Bike: $1250.
3x pistons: $650.
Rebore: $88.  >:(
New YSS ZR302: $1000.
New sprockets: $50.
Extra new rear sprocket: $25.
New alloy handlebars: $90.
New Maguras: $120 (inc a cheap Gunnar Gasser replica throttle that I won't use).
New kill-switch: $8.
New grips: $12.
New fork seals: $21.
New tyres (Michelins): $260.
Sold the original sized piston on Ebay: -$110 (actually got $130 for it, but I took so long to post it, that I sent it for free).

I ordered a pipe from GMC today, so that's another $420 when its done.

Next up is a set of stainless spokes from John Titman, which will be ~$350 for the set (in postage).

Seat base, seat cover and airbox lid to come from the USA, another $200ish.

Hoping to get the frame 2-paked for a carton of beer.

Then the only big worries are the ignition and the gearbox internals - I think my original budget of $3500 will be in the ball-park.
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Offline k2000x

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Re: I have a 74 VR250!
« Reply #24 on: December 01, 2010, 03:28:43 pm »
nathan were did you get your pistons and parts from

Offline Nathan S

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Re: I have a 74 VR250!
« Reply #25 on: December 07, 2010, 10:12:16 pm »
The seller (Maicomc490T) bought them from US Ebay, and then I bought them from him.

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