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<blockquote data-quote="pussiwillow" data-source="post: 237445" data-attributes="member: 5330"><p>I would take a look at the compression on that merc, if it's been sitting for 6 years there's a chance the rings may be stuck and doing a decarb would be your ticket, here's how I do mine, I run the motor in a barrel and get it nice and warmed up, once warm I tilt the motor and try to get the cylinders completely vertical, pull the plug to one cylinder and bring that piston to top dead center, once top dead center I spray the decarb into the cylinder focusing on the rings, I use valvetec aerosol decarb, let sit for 15 to 20 minutes. Put the motor back down and run it again at fast idle for 5 minutes, repeat the steps for the other cylinder, I do this 3 times per cylinder and that should free them up</p></blockquote><p></p>
[QUOTE="pussiwillow, post: 237445, member: 5330"] I would take a look at the compression on that merc, if it's been sitting for 6 years there's a chance the rings may be stuck and doing a decarb would be your ticket, here's how I do mine, I run the motor in a barrel and get it nice and warmed up, once warm I tilt the motor and try to get the cylinders completely vertical, pull the plug to one cylinder and bring that piston to top dead center, once top dead center I spray the decarb into the cylinder focusing on the rings, I use valvetec aerosol decarb, let sit for 15 to 20 minutes. Put the motor back down and run it again at fast idle for 5 minutes, repeat the steps for the other cylinder, I do this 3 times per cylinder and that should free them up [/QUOTE]
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