Training Wheel Hero
Join Date: Apr 2014
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Dull knocking sound , very concerned
Hi I have recently bought an 03 600rr with 18700 miles on it , seems to have had a fairly tough life but the aftermarket repsol paint reeled me in. Firstly I had to add nearly a litre of oil to get it to the correct level, and numerous other jobs , the guy was an animal! However it's developed a knock , not evident on cold start up each day but evident every other time it's started during a day where the engine hasn't had chance to become stone cold again. Seems to disappear when engine is nice and hot ,I've just done the APE cct upgrade , (the knock was there before and after cct change )oil change (no filter) silkolene 10/40 semi , the knock may have started after the oil change but I cannot be sure .The sound seems to be more prominent at the back of the motor ,and becomes undetectable as revs rise above 2500. I've tried using a piece of wooden dowel to the ear to pin point it, but haven't had much luck. I've done a lot of online searches , especially this site,and the closest thing I've found that vaguely sounds similar , though a lot , lot louder than the noise I've got is a 'spun ' bearing . Performance is ok, running temp is ok , no smoke from exhaust except the norm, using clutch makes no difference, it's not really noticeable under load
Any ideas, or is it bye bye cbr?
Any help much appreciated as I really don't want it to go/die