kevinstillwell Posted April 9, 2010 Does this look like normal / acceptable wear on this drive gear. Or does it look like it may need replacing. Thanks Kevin Share this post Link to post Share on other sites
dearden225 Posted April 9, 2010 i would not replace that gear if it was mine. Share this post Link to post Share on other sites
fxrs Posted April 9, 2010 i would replace it myself. but i am always wrong. Share this post Link to post Share on other sites
frankdecrosser Posted April 9, 2010 I would replace it, and the gearwheel wich dogs engage in this one probably too. Because of the chamfered edges your shifting have to become more solid, otherwise you risk missing one and those edges will become more rounded-off, also because the hardened surface is damaged on those edges. It will cost you some extra buck now but it saves you another case split anytime soon. Good luck. Share this post Link to post Share on other sites
HrcRacing Posted April 9, 2010 Looks like normal wear to me. Share this post Link to post Share on other sites
SMarquez Posted April 9, 2010 Replace, if it isn't popping out of gear and missing shifts it will soon. Like the earlier poster said check the gear that engages it and the shift fork for it. You've already gone this far, might as well go all the way. Share this post Link to post Share on other sites
CRF STUFF Posted April 10, 2010 i would replace it myself. but i am always wrong. I knew I had a long lost brother! 👍 Share this post Link to post Share on other sites
kevinstillwell Posted April 12, 2010 Thanks for the replys. I was hoping the concensus would be that it's acceptable wear. But, when I do a suspension, I don't take any shortcuts. I probably shouldn't shortcut on my bike's gearing. Here is a pict of the matching drive gear. To me, that doesn't look that bad either, but that's probably because if I replace this set of gears, I'll have to replace two other sets as well. Share this post Link to post Share on other sites
motoxracer476 Posted April 13, 2010 personally i would leave it. i have a 2003 with alot of hours on the trans gears and the trans never poped out of gear once. still clicks through the gears fine. but that one is up to you. Share this post Link to post Share on other sites
gc8steve My Ride Posted June 6, 2010 replace 'em , there stuffed ! Share this post Link to post Share on other sites
tookatumble Posted June 6, 2010 The gears need replacing, I would have a good look through all your gears if any have rounded edges on the dog gears I would replace them as a set while you have the cases split, I just did mine and we couldn't get 5th gear because it was on back order so we chucked it back together for the state round and I got 8 hours out of it and now I need to do it all again. Save yourself any issues by doing it right the first time they dont cost that much for the gears so just get it done. Just my opinion but it's up to you.. Enjoy 👍 Share this post Link to post Share on other sites
cr 250 Posted June 6, 2010 if it was mine id keep it since i have a low budget but if u have the money replace it Share this post Link to post Share on other sites
MELK-MAN Posted June 6, 2010 have you had ANY issues with shifting or kicking out of gear?? Share this post Link to post Share on other sites
The Captain Posted June 6, 2010 replace 'em , there stuffed ! +1 Toast imho. Share this post Link to post Share on other sites
Shawn_Mc My Rides (2) Posted June 7, 2010 The male side doesn't look that bad, but the female is toast. Id have a hard look that the shift fork and drum too. Second look at the male gear...its got a tooth with a significant chip in it too... You've got some stuff to buy... Share this post Link to post Share on other sites
jonas10001 Posted June 7, 2010 as it has been said already, the gears are worn... i´ve worn out the gears on two crf 450s, and when the bike can no longer stay in gear, the wear isnt too much worse than what you have there.. now.. last time i had a worn gearbox, i took it to my trustworthy dealer.. he told me that he has had luck welding up these little camfered edges, using a tig welder... i had this done to my gears, put it back together, and everything was perfect, atleast as long as i had the bike, and hopefully still is.. maybe you could try this cheap fix? Share this post Link to post Share on other sites