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Stuck piston
https://vintagedirtbikeforums.alp-sys.com/viewtopic.php?f=21&t=3111
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Author:  Texas77 [ Mon Oct 03, 2011 5:04 pm ]
Post subject:  Stuck piston

Some how were the exhaust turns up into the pumpkin there was WATER!
So the piston is stuck. I took the head off and exhaust, cleaned everything and put the exhaust back on to hold lubricant because it is partially in the exhaust stroke and won't hold the lube on top of piston. Probably about a 1/4" opening on exhaust port. Is that all the way down? I hope not. If so I may have to take it loose from the crank. Any tricks? I'll let it soak for a few days and see if it breaks loose.

Author:  woosh [ Tue Oct 04, 2011 2:34 pm ]
Post subject:  Re: Stuck piston

Older people tell me that coke works for this as its acid and slowly eats the rust I guess. Never done it but been told it works.

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