07 rmz450 clutch problems

Sounds like the clutch cable needs adjustment so that the clutch is completely disengaged for shifting. Being a hydraulic clutch operation system there is no adjustment I'm afraid bar pedal height at the master cylinder push rod to pedal and that wouldn't solve the problem - as over all adjustment generally occurs as the clutch wears..so a good clutch would bite in the region of between the floor and mid way on the clutch pedal travel..if bite point is flat to floor then it possible you have drag on the clutch or its not clearing properly either a fault on the release system/hydraulic side either weak slave/master cylinder "prob try to bleed through again maybe and see if any improvement is felt"..or defective drive plate, buckled plate,weak pressure plate which releases the friction plate or seizure on spines/seized spigot bearing all of which would require inspection with the gearbox out. Hope this helps.

Is it a hard jerky stop as if you didn't press in the clutch at all? If so, it appears your clutch plate is not disengaging when you press the peddle. I think you may have a bad slave cylinder. Here's a link to a description of the clutch slave cylinder with a video to help out: http://www.howstuffinmycarworks.com/Clutch_slave_cylinder.html

Its not a problem it has worn down, when it starts to slip you will need a new clutch - this is normal wear and tear.

Stress.There are lots of reasons, heavy foot on the fuel pedal, jerky on the clutch,lots of lugging,could be a flaw in the metal, could be the wrong clutch disc, could be a poor design.

It should be engraved on the frame near the front forks.

The isn't an oil level sight glass as such on the '08 RMZ450. About halfway up the clutch cover is a allen key head bolt. Run the bike until it's warm and then turn it off. Wait a couple of minutes and then take out the screw. If the oil level is correct there should be a slight dribble of oil coming out of the bolt hole.

Yes some DC07 models have clutches.

The thing with the teeth you are referring to is your flywheel. That is what your clutch engages with to transfer power from engine to transmission. Your clutch is the disc & spring assy, and yes it could be on it's way out by sound of it. How much free play do you have at clutch pedal?

when gas enters the crankcase the gas will wash the oil of the clutch plates. And if it sat faor a while the plates will stick together(usually rust) and not relaese properly. most of the time they will just work themselves out but if not you will probably need to pull the clutch pack and inspect them. And if your bike has a lot of mile then while it is apart it would be a good idea just to replace them