gt550k

[quark77]

i have a gt550k , runs and idles fine but the motor does seem to clash and bang a bit ? replacement startef clutch but i do know clutch basket is quite grooved , as i said runs fine but does seem noisy , any opinions gratefully recieved

[barney01]

Hi
Where is the noise coming from? The cylinders or the crankshaft? The grooves on the clutch basket will cause a stiff clutch operation but shouldn't make a noise really. You say you have replaced the starter clutch is it springs and rollers or a Borg Warner?
If you get a rattling noise from the cylinders it could be piston slap from worn bores or rings. Does it go away if you rev the engine?

[quark77]

difficult to pin point the noise tbh , not so much a rattle , more a banging noise which does disapear with high revs a just wondered how noisy these motors can be though i don t know the history of the crank replaced starter clutch had new rollers and springs ,

[barney01]

These motors are very noisy lots of popping and banging. Unless you have a particular noise i would just get some earplugs
If it helps this is what piston slap sounds like
https://youtu.be/WAYLOfNntcA

[quark77]

lol cheers mate