Heya. I picked up a Kazuma Redcat 110 for little or nothing, and surprisingly, it runs smooth as silk. However, it doesn't *pull* so well. First gear is fine all the way thru the powerband, and so is third. But Second gear, under acceleration, "jerks" or "jolts" intermittently, almost as if the chain was jumping a tooth or two. The chain is tight and well-lubed, the sprockets look ok, and I adjusted the clutch as far as I could. (Loosened the jam nut, turned in the slot bolt clockwise as far as it would go, then backed off 1/2 round and locked it down)
Any ideas where I should go from there? I'm not afraid to tear into it if needed, just don't know where I should look first.

Thanks!
Bamadad

 

have you changed oil lately to see if there are any metal shavings in the oil or smell the oil to see if it has a burnt smell? i presume your drain plug would be magnetized, so that could help troubleshoot. at least we can rule that one out. sorry i'm not too familiar with transmissions.

 

Sorry it took so long to respond, with my work schedule I had to find daylight to change the oil & check it . The oil was due, thinned out, but no gas smell and no burned odor. The drain plug was magnetic, but was clean, no shavings, just a really light fuzz of sludge-like material, just barely coating it. I haven't test-ridden since the oil change, but is it possible the oil being so thin might cause it? I know I'm grasping at straws. It's not as much an issue as it was, a coworker is swapping me a 350 Big Bear that needs rings for it. Still, tho, I'd like to be able to tell him what might need to be done.

Thanks again!
Bamadad

 

Welcome to the forum Bamadad66!

If it only happens in 2nd gear... something must be wrong/broken with the 2nd gear set in the tranny.. Time to split the cases..