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  1. S

    cam timing 180 out of sync.

    O.K. I just replaced both pistons, had cylinders bored, new rings, reground valves, new cam chain. I think I may have put the cam chain on so the cam is 180 out of proper timing. Does this matter with a basically stock xs 650 engine? It seems like it wouldn't matter with both cylinders firing at...
  2. S

    which rocker goes where?

    Hey People, Well I just got my head back from getting the valves ground, I went to put the rocker arms back in the cylinder head cover and I noticed that there are different numbers marked on the four rocker arms. Two of the arms are marked #18 and the other two are marked #19. My question...
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    when do you replace pistons?

    Hey, I am new at posting so please be patient. So last time I rode my xs650 the engine was making a clacking noise, I figured it was the timing chain and tore down the engine today to look and see what is wrong? I took the head off and the timing chain and adjuster look OK to me, so I and...
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