salindroth
New member
1975 R90/6
I noticed oil on the left spark plug threads. The bike runs smooth, starts up fine, the power is good, and no blue or white smoke, so I don't think the rings are worn.
A friend suggested valve seals. I can't find these seals as a separate part. I realize the R90/6 does not come with valve seals.
Would replacing the valve guides and valves fix this issue? Thanks for any advice!
I noticed oil on the left spark plug threads. The bike runs smooth, starts up fine, the power is good, and no blue or white smoke, so I don't think the rings are worn.
A friend suggested valve seals. I can't find these seals as a separate part. I realize the R90/6 does not come with valve seals.
Would replacing the valve guides and valves fix this issue? Thanks for any advice!