'81 430 CR clutch basket gear scared

I just picked up an '81 430 CR that I going to rebuild for vintage MX (hope to get it ready for Unadilla). I have pulled the side cover for inspection and noticed a faint mark in-line with the clutch basket drive gear, there appears to be a mark cast into the gear that mates to the clutch basket....does this sound correct?

A tool mark there would not be a problem. Looks like your basket bolts have no marks or wear. The nut that extends out on basket look for wear here , if for any reason
you have a kickback crack in case - the case will move where idle gear is mounted it could move. Thats the worse case. I don't see in pic.

Hope to see you at Unadilla

Your saying the starter gear on the clutch basket is worn or has a mark on it. You could use it while looking for another replacement.

That mark has left a faint scribe line in the opposing gear, I'll try to post a pic tonight. Thanks for the info.
w

All these gears can fail someday. Been noted that the ring gear in not heat treated. Many are torn or having tearing on edges you do not have this. Keep new idle and kick gear with fresh bearings Update well you down have some minor tearing on outside face - just very carefully file this face down and don't leave burr on inside of tooth.


Replace the main clutch basket bearing. Later model Suzuki has the same size bearing I will look it up later.
If still using motoplat set timing @ 2 not 2.2 BTDC Replace with Electrex for no kick back if funds available.

Make sure your side case that the hole for the kick shaft is still round or not worn - you can add a bushing to this as husky went with bushing in later years.
Don't want the kick/idle gear to twist on starting.


Bearing size should be 28 x 33 x 27

Good stuff Gary, thanks. I will inspect much closer and post pics next time i'm in the garage. The cylinder has the dreaded crack on the intake bridge from the intake bolt being too long and pushing against the liner, so I'm having it re-sleeved.... The rest of the internals appear to be in good shape, but I will absolutely check the timing and inspect for the kicker cracked case etc.
Thanks!

more..

pic

2 x new '886' gears in stock. The reason they wear like this is because some bikes are fitted with a plastic caged needle roller. Replace them with steel cage bearings as the plastic cage twists under load and the gear twists off line....

Andy