Hi All, I hope all goes well. I am writing to ask if you can advise on a rattle I get at certain revs (steady mid. revs) doing 50mph roughly on flat... I can't tell what it is but suspect rockers maybe? Or rods to cam? I'm really not sure...bike running well and valve clearances are correct I believe, engine burs no oil and has low fuel consumption..I .don't think it's pinking as noise not happening under load. Timing correct I believe but if advanced would it cause rattle? ( I tried retarding a little as easy to do but I don't think it lessened the noise- just made engine bogg down up hills....
So...what does worn rocker bearings sound like? Should I worry if there is some play?- I have seen a very careful fix by Paul Compton on YouTube but way beyond my garage experience and facilities..
All ideas welcome!
rocker rattle?
rocker rattle?
350 Sport 1979 electric start model (missing)
Curry yellow tank etc paint work, navy blue frame, silver wheels.
Curry yellow tank etc paint work, navy blue frame, silver wheels.