Is this bad?

[Theo]

So I just bought this bike and am now in the process of rebuilding the engine and I noticed that the outside of the clutch is gouged pretty badly. Here is a picture of the damage.



As you can see the gouge is pretty bad in the lower left part of the clutch. So I'm wondering what could cause this and do I need to replace the hub? Thanks.
-Theo

[Steve]

Looks like one of the bolts has come loose some time in the past.
Look for matching gouges in the inside of the case.
Check the torque on all six bolts, maybe even put some Loc-tite on them, put it back together.

.

[Theo]

Wait. so are you saying that it's alright to leave it the way it is or should I replace it? And yes there are matching gouges in the outside cover. Thanks.

[Larry D]

I think it'll be okay. As Steve said, looks like a bolt came loose and rattled around in there, sometime in the past.

Just check that they're torqued right and forget about it. The bike was shifting and riding well before the teardown....right ?

[Theo]

The bike was shifting and riding well before the teardown....right ?

I have no idea if it was shifting fine or not. I bought the bike in a non-running condition. The PO said everything was fine except that the engine was leaking oil from the base gasket. He was in the process of replacing all of the gaskets before he called it quits. So I guess I'll tighten it up, finish the rebuild and see how it goes. Thanks for all of the help.

[Nessism]

Those are not the stock bolts so someone changed them at some point...most likely after one came loose.

[Dave8338]

Those are not the stock bolts so someone changed them at some point...most likely after one came loose.

My thought exactly.
As mentioned...Loc-tite and retorque, done.

[chef1366]

Get the stock bolts, spacers and springs.
I'd use that pressure plate as long as it's not cracked.

[Theo]

Thanks for all of the help guys. Other than the gouge the pressure plate is fine so I'll reuse it like suggested. So where do I get stock bolts from? Why do the springs need to be replaced? Thanks.
-Theo

[doctorgonzo]

Thanks for all of the help guys. Other than the gouge the pressure plate is fine so I'll reuse it like suggested. So where do I get stock bolts from? Why do the springs need to be replaced? Thanks.
-Theo

The springs (like any spring) starts to sag under load after many years under compression. You can replace, or some people shim them with washers. It stops the clutch from rattling and slipping.

[chef1366]

Try mrcycles.com for replacement bolts. Use a caliper to measure the springs to see if they need replaced. Replace the springs if they measure less than 38.5mm.

[Theo]

Awesome. Thanks for all of the great info.