slight knocking at low revs

rocket robbo · Post by **rocket robbo** » Tue May 10, 2016 12:29 pm

Got a slight knocking noise coming off my motor.as soon as revs pick up it goes.bike seems to run ok any ideas fellas ?

krazyneil · Post by **krazyneil** » Tue May 10, 2016 11:48 pm

make sure exup valve is correctly adjusted as it can give a off a sound like that if the cables are loose

rocket robbo · Post by **rocket robbo** » Fri May 13, 2016 10:00 am

No valve in the system its a valveless exhaust so still scatching my head.

Post by **Stig** » Fri May 13, 2016 10:03 am

Is it a rumble or a rattle? Which side if any?

rocket robbo · Post by **rocket robbo** » Fri May 13, 2016 10:08 am

Its a rolling knocking stig.its at tickover and goes away when the revs pick up.carnt pinpoint area...checked the usual suspects .loose clamps carb rubbers etc.bike goes as well as it always has just this knocking is driving me mad

Post by **Stig** » Fri May 13, 2016 10:33 am

If it's only when moving then it may be a tight spot in the chain of loose front sprocket?

rocket robbo · Post by **rocket robbo** » Fri May 13, 2016 11:30 am

No noise when riding Stig i was describing the noise as a rolling turning sound when bike is idle and sat at tickover

dustydes · Post by **dustydes** » Fri May 13, 2016 4:22 pm

Take a long extension bar put one end on engine and cup other end in hand and hold to ear.
It will magnify any noise and might help locate it.

Cam chain ?

Good luck hope you sort it.

Des

Exup 1000

slight knocking at low revs

slight knocking at low revs

Noise