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I just reassembled the top end. Everything is clean and has new gaskets. Followed manual precisely. Now when I hand crank or starter crank the engine it only turns about half a rotation then stops. I can reverse the rotation manually but only about 180 degrees. This is my first top end rebuild and I don't know where I went wrong. Any suggestions?
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Pistons hitting open valves? Valve timing is off. You put the cam chain on with the cams in the wrong position? You might be able to see in the spark plug holes and take the valve cover off to see if the valves are open as the piston reaches the top.
One possibility.
GreetingsRichard
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GS1150 EF bought Jun 2015
GS1150 ES bought Mar 2014: ES Makeover Thread AND blog: Go to the Blog
GS1100 G (2) bought Aug 2013: Road Runner Project Thread AND blog: Go to the Blog
GS1100 G (1) Dad bought new 1985 (in rebuild) see: Dad's GS1100 G Rebuild AND blog: Go to the Blog
Previously owned: Suzuki GS750 EF (Canada), Suzuki GS750 (UK)(Avatar circa 1977), Yamaha XT500, Suzuki T500, Honda XL125, Garelli 50
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If the cam timing is off and you hit the starter button you might have bent valves.
Double check the cam timing and keep your fingers crossed.Ed
To measure is to know.
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You guys were right. Sprockets were one chain pin off. Fixed! Thanks dude!Originally posted by londonboards View PostComment
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