Posts
82
Joined
1/7/2016
Location
GB
psr racing
1/12/2016 1:56pm
1/12/2016 1:56pm
Edited Date/Time
1/18/2016 4:16pm
Hey, after stripping my 02 rm 125 which I bought with a blown crank I discovered most of the dogs on all of the driven (output shaft) side gears are worn, I had the same issue on my other 08 rm 125 after only around 25 hours! I have also found some damage to one shift fork and to the shift drum! Total for all the parts needed is around £750 ($1080) on an 02 bike this is nearly as much as the value of the bike! Has anyone had any luck with repairing or undercutting the dogs? On my 2008 bike I replaced all the worn gears and had the entire transmission isf super finished which has made a massive difference to the shifting of that bike but on an 02 bike that I only plan on running for a season in enduro I'm not sure it justifies the cost. Any ideas here guys?
From my research the mating surfaces on the dogs aren't true meaning the engagement surface is not 100%. Having the mating surfaces re-machined and then back cut would really help.
Check this beauty out.
http://www.vitalmx.com/forums/Moto-Related,20/Gearbox-Porn,1296490
on a side note we did have some 88 kx500 gears welded and recut, by a regular machine shop, not a bike guy or a trans guy, and it lasted for about 25 hrs of hard vintage abuse, it didnt really think it was worth the trouble
The Shop
Wonder if using ATF for gear lube would help engagement as well.
Post a reply to: Suzuki rm gear dogs!