Originally Posted by RevoUsa

I just got my P5XLT in the mail and I am going to try to get at the least a gallon through it today after I find some fuel ( everyone is out of stock ).

One of the things I've noticed is that there is NO head shims in box ! I haven't taken the head off yet but am assuming there already installed.

Is there any recommendations for running Byron's 30% / OD 97t / platinum 086 pipe /,,,,,,,,,,,,, head shims ?

I read somewhere along these 100pgs. that it was a good idea to flush the engine out with fuel ? or after run oil ? before first start up !

Any advice on this adventure would be appreciated.