Golluk
Well-known member
I'm seeing two methods for checking the valves clearance on a GS500. The manual says to align the notches on the end of both cams so they point inwards, then check 3 of the 4 clearances. Then you rotate the engine so the notches face away, and check the final one.
The other method I've seen, which was in a video linked from the gstwins site, has you rotate the engine so the protruding part of the cam lobe faces away from the shim, and check the clearance. Doing this for each one.
It seemed like with one method, the clearance was too much (by about 0.02mm) on one of the valves. But it was fine with the other.
The other method I've seen, which was in a video linked from the gstwins site, has you rotate the engine so the protruding part of the cam lobe faces away from the shim, and check the clearance. Doing this for each one.
It seemed like with one method, the clearance was too much (by about 0.02mm) on one of the valves. But it was fine with the other.