So I had to come to an abrupt stop the other night and didn't have time to slowly downshift and when I went to downshift I shifted all the way down to first and it didn't actually shift into first it just kind of grinded a little bit and I let off the shifter and wait until I had another slower spinning gear to force it down in the first ... Needless to say I've been having some turkey jerky accelerations since then mostly in first gear I did notice a little bit in second gear I think yesterday but I'm wondering if one of the gears may have lost a couple teeth and if it could be as simple as the magneto gear behind the magneto having just a tiny little bit of the back end where the other gear touches it chipped off like I'll post a picture of what I'm talking about.... Or if you think it's something like transmission related like the gearbox please any help is much appreciated
if you can see how the teeth surfaces are not even on one side that little bit of unevenness does not go all the way around the sprocket I thought that maybe that was the problem but this is not the one from my bike I mean it is the one for my bike but it's an old one the one that I have in there now also has the same kind of channel like unevenness on sections of it but not all of it could this be a symptom or the cause of the slipping or jerking or whatever is going on thanks again guys in advance