KX500 gearbox problem

[CHOPPA]

Any ideas before i strip it??

Bike just started making this clacking noise coming from the LHS/Chain/Shifter side. It was getting worse with every run, it was in all gears.

It sounded like a chain slipping over a worn sprocket but i have new chain and sprockets

[hayd3n]

loose chain or wheel alignment out?

[barty5]

if its not wheel etc out a line or worn sprocs (double check them) to me sounds like a clip holding one of the gears may have come adrift (have you drained the g/box any metal bits in it) maybe one of the dog gears not locking in if clip has gone.

[CHOPPA]

loose chain or wheel alignment out?

Na all that is spot on im pretty anal with anything like that, thanks though

if its not wheel etc out a line or worn sprocs (double check them) to me sounds like a clip holding one of the gears may have come adrift (have you drained the g/box any metal bits in it) maybe one of the dog gears not locking in if clip has gone.

Sprockets are mint but that certainly gives me some direction thanks mate! Well i suppose i better split it!

[noobi]

Just throwing it out there, does it click when you turn the wheel by hand, or is the rear wheel hard to turn? Could be collapsed or damaged bearings, but you say your pretty precise with that sort of thing. Just something I had happen once

[scott411]

sounds like it could be an output shaft bearing, would be a noise coming from where you say it is as well,

[Crasherfromwayback]

+ one for Scott's diagnosis. I've had about 6-7 KX 500's, and they're normally pretty bullet proof.

[CHOPPA]

Just throwing it out there, does it click when you turn the wheel by hand, or is the rear wheel hard to turn? Could be collapsed or damaged bearings, but you say your pretty precise with that sort of thing. Just something I had happen once

No it only does it under load..

sounds like it could be an output shaft bearing, would be a noise coming from where you say it is as well,

That sounds like a real possibility Scott, do i have to split the cases to check that?

[Crasherfromwayback]

You're gonna have to split them no matter what I'd say.

[CHOPPA]

Ah well its gotta be done! Piss easy really just a pain, my problem is that once i split it I feel like i should replace all the bearings etc etc but really cant afford to do that!!

[Crasherfromwayback]

Yeah...but then you'll get another 10-15 years out of the old girl! By the pic...it looks like a 92-93 is it?

[CHOPPA]

Its actually a 2000 model but i put old graphics etc on to make it look like a 91

[Crasherfromwayback]

Not that they really changed from 1989 on! Bloody good fun to ride though!

[F5 Dave]

No it only does it under load..

Yeah I agree on output shaft brg, but I'd do a damn good look that it hasn't just eaten through the SW plastic guide & has found a bolt or edge to nibble on that only hear when power is pulling on chain.

[CHOPPA]

Yeah I agree on output shaft brg, but I'd do a damn good look that it hasn't just eaten through the SW plastic guide & has found a bolt or edge to nibble on that only hear when power is pulling on chain.

Cool, im about to pull the engine apart now, I have just rebuilt the bike from the ground up so there are no worn out items except the footpegs as it seems they run 2 diff types.... Only thing i hadnt touched is internal engine as it was all ex japan, ill prob go aftermarket just always used oem so hopefully will be ok

I could just put it on my Mr Motorcycle 2 years interest free account?????