jst done a top end 1 hours use on it ,pilot screw bottoms out,idol screw about halfway,after build put a new plug in fouled it then put old one back in fired up straight away,but this could be due to very clogged up silencer,it has now been cleaned out and is gonna get repacked so no oil will be leakin back into the engine,main jets been replaced,new pilot jet,and jet needle and and float onlything I haven't replaced is the outer mixture and idol screw,when I warmed it up the screws didn't seem to have any affect at all was weird,also lookin for new l/h kip for next rebuild