Need help identifying if these parts are bad.

[Colt45]

I split the case on my 350 warrior motor and these parts are the only ones I saw that look worn out but not 100% sure.

The problem that I had was it not engaging into forward.

The reverse shift fork looks like it could be the problem to me or the gear that's in the picture thats on the shaft that the sprocket rides on.

I'm not sure if these parts are bad enough to need to be replaced because I don't know what the wear limits are.

 

[Colt45]

 

[PineyPower]

Fork for sure is bad. The drum looks like it has a chunk broken off too? The gears seem okay though, at a glance

 

[Colt45]

Fork for sure is bad. The drum looks like it has a chunk broken off too? The gears seem okay though, at a glance

OK I wasn't sure if the rounded edges on that one gear that was on the shaft was normal I know a little is probably normal but that one gear seems really rounded on the edges.

The drum has some bad grooving in the spot you see in the picture but don't know where the missing piece your referring to is.

And that groove must be ok in that other gear? All the other gears just had some rounding at the edges but not a ton.

I think what was causeing my problem was that shift fork is it common to replace all of them if one is bad? And how do you tell if it's worn enough to need to be replaced?

 

[Colt45]

Fork for sure is bad. The drum looks like it has a chunk broken off too? The gears seem okay though, at a glance

I was also wondering do you know if all of the crankcase bearings are replaceable and do you know how to get the shaft that the sprocket rides on out of the bearing?