Worn Primary Drive Gear

[gs7_11]

On a GS1000, has anyone ever had a worn primary drive gear on the clutch basket? (I assume the same might be true on a GSX1100).

My clutch was getting a bit noisy (had a reconditioned basket in about 1999), so I fitted the entire clutch from my 1000S which is in bits. It's now much smoother and quieter.

The only difference I could find between the 2 clutches, apart from some wear on the plates, was a good bit more play in the primary drive gear, with some marking on the teeth of the gear on the basket.

Anybody come across this?

[Gixer1460]

If we are talking about the same thing - there should be little or no discernible play on the primary gear which is mounted on the back plate and via rivets to the basket. There may be a little play via the shock damper springs although this should be minimised to prevent grabby operation and chatter.

[gs7_11]

Yep that's it.

There's no play in the springs, they're all the new heavy duty ones. The play us definitely in the gear itself. I was holding the gear while checking, not the basket.

The other one I've fitted is much better, what I'd expect for a pair of helical gears. The bad one has a definite clunk, and a visible movement at the circumference of the gear.

Like I said, I know it's worn and can see scuffing on the teeth.....my question is, how common is this?