ORIGINAL: MassiveMods
put a hyper 4 port piston and rod in it.. if its the same boar as the P5 ( which im bettin git is) the 4 port piston will allow you to run it in to the point where the original piston will fit.
WHAT??????????? Are you stoooooooooopid. Don't do that.
Not only will it NOT fit, but the break in will be a waste of time, the liner will be ruined, the piston will hit the button, the porting will be wrong and it WILL cost you an engine.
OK now here's what to do,
read the manual and set the needles up as descibed in it. Normally Idle 1mm gap, LSN 3 - 3.5 turns out from closed and HSN 3 turns out from closed. Now squirt a few drops of After run oil down the carb throat and in the plug hole, disconnect the fuel line and turn the engine over a bit to lube it up. Now reconnect the fuel line and fill the tank, remove the plug, and block the exhaust. turn the engine over till fuel spits out the plug hole, refit the plug and fire her up.