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Author Topic: Yamaha 1981 top end on a 1980  (Read 1658 times)

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Offline Iain Cameron

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Yamaha 1981 top end on a 1980
« on: July 18, 2016, 06:08:59 PM »
Just a quick one gents would a 1981 IT 250 H cylinder and head fit on a 1980 IT 250 G ?
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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 motomaniac

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Re: Yamaha 1981 top end on a 1980
« Reply #1 on: July 18, 2016, 06:25:50 PM »
pretty sure that I sold one to Kurt ( fachunt)
  a while ago who did just that.
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Offline Iain Cameron

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Re: Yamaha 1981 top end on a 1980
« Reply #2 on: July 18, 2016, 06:29:49 PM »
Thanks I just bought a G some dumb bugger had got a new piston kit had it rebored and didn't check where the rings fitted on the pin [right over the inlet port ] last over size but have a YZ h as a parts bike
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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 motomaniac

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Re: Yamaha 1981 top end on a 1980
« Reply #3 on: July 18, 2016, 08:25:07 PM »
on second thoughts isn't the G centre port and the H side port?
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Offline Iain Cameron

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Re: Yamaha 1981 top end on a 1980
« Reply #4 on: July 19, 2016, 06:15:14 PM »
Yes but I have a H pipe as well .
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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
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