Re: Engine Knocking - any ideas
Firstly - thanks for the effort guys!!
To answer the questions, it only makes the noise when the bike is moving - ie, you accelerate and then close the throttle and the nock happens. When moving and accelerating the bike is fine, it is when you shut the throttle that the kock occurs - that is why I changed the cush drives, chain and sprockets because I was sure that it was the type of kocking associated to this.
The kocking occured before I changed the plates but as I have just brought the bike I changed them as a metter of course, and I was sure that the cush drive rubbers would cure the knocking.
I checked all engine mounts today and they seem good an tight and all the shock linkages are likewise.
If it is not a gearbox issue then I still reckon it might be clutch. One strange thing when I took it apart was that on the clutch center where the springs fit over, there was quite bad scoring that looked like the springs had been rubbing or knocking into the clutch center - not sure if this is coincidence or the problem??
Any ideas what could cause this clutch scoring? If you are looking at the clutch (with the plates and pressure plate removed) and grab the clutch outer drum, should there be any movement in the drum or should it be 100% solid? If you take the drum out all together, on the back there are springs set horizontally in the assembly - one of these is tight and does not move and the other rattle and move - should they do this??