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Hello,

I just purchased a non running “ran when parked 5 years ago” GL1200 interstate. I got the bike home and the engine seemed to be locked up. I pored some MMO in the cylinders while I pulled off the timing belt covers and once I got a bar on the crank bolt it would move freely back and forward half a turn but it seems to be hitting something hard pretty much 180 degrees apart.
Is there anything common that might cause this? I would like to not have to pull the engine down completely because the bores look good through a bore scope, the valves arnt sticking because I removed the timing belts and cause move them freely.
Anyone have any ideas?
 

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It could be a valve stuck open, you can remove the valve covers and see if one of them isn't closing.
 

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Just removing the timing belts does not close all the valves. The cams open and close the valves and if the cams do not move you are banging a piston into any that are being held open by the cams.
 

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Discussion Starter #4
Just removing the timing belts does not close all the valves. The cams open and close the valves and if the cams do not move you are banging a piston into any that are being held open by the cams.
Yes I understand that. I had a bore scope in the spark plug holes to make sure the pistons were down low enough so I could turn the cam gear and make sure the valves are free
 
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