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cobbadiggabuddyblooo
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by cobbadiggabuddyblooo » Wed Oct 08, 2014 12:14 pm
If someone has access to a disassembled TRX or a TRX gearbox , I'm chasing the lengths of the 2 shafts the selector forks pivot on.
You can see the 2 pivot shaft lengths I'm chasing from the photos.
Can someone help please...
laughter is the best medicine
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M.V.
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by M.V. » Wed Oct 08, 2014 11:17 pm
I can strip my dead engine down, how much of a hurry are you in?
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masterbill
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by masterbill » Thu Oct 09, 2014 6:04 pm
Hello,
Shaft 1 length 124.95 mm this has a through hole in it and my one has a shiny finish to it.
Shaft 2 lenghth 115.75 this has a hole through and 2 - 1.3mm holes going into centre hole. It also has the end cut away

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cobbadiggabuddyblooo
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by cobbadiggabuddyblooo » Fri Oct 10, 2014 3:17 am
Excellent thank you very much for that and thanks you too MV for the offer to pull the motor apart to gather the info.
Thanks to SDN for the PM too .
The reason behind the measurement is with the cases split at present I placed the yzf750 gearbox in and I placed the 1 yzf 750 pivot shaft next to the 2 Trx ones.
I was 99.9% sure I had the correct shafts back in the Trx but I just wanted to be 100% sure.
Out of interest, the yzf 750 sp gearbox fits into the Trx no problem, the main and lay shafts overall are approx 5 to 8 mm longer and not too much of a problem , but the yzf selector barrel is a touch longer so a little machining of the case would need to be done to get that into place.
Selector forks may need to be made tho to get it all up n running.
The yzf selector forks pivot from just 1 shaft and not 2 like the Trx so another reason for tooling up new forks.
Thanks again guys.
Unfortunately the tdm900 gearbox wont just slot in either but the selector barrel and forks might as the 3 forks pivot from 2 shafts like the Trx.
laughter is the best medicine