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14-04-10, 07:44 PM

HI new on here have checked threads nothing similar.
there is a knock under load starts at 4000-5000 rpm sound is to high 4 bottom end and to low for top end probably worse once warm. I drained the oil out and it was overfilled not had the bike long should have done it straight away. I think its sounds like piston slap seems to be comming from the front left of the engine any one help?

14-04-10, 07:44 PM	#2
sparks40 Guest Posts: n/a	strange engine knock HI new on here have checked threads nothing similar. there is a knock under load starts at 4000-5000 rpm sound is to high 4 bottom end and to low for top end probably worse once warm. I drained the oil out and it was overfilled not had the bike long should have done it straight away. I think its sounds like piston slap seems to be comming from the front left of the engine any one help?