Ok so back to this slasher again after it has now been straight fueled. I am fairly convinced the PT motors are not a patch on the full crank motors. I pulled a PT off a base I had running a few days ago, put it on the slasher and now can't get a kick out of it, this is not the first time this has happened and I'm convinced it has something to do pulley/big blade carrier. I know this defies logic but this is what I am finding and to me these fitted with a PT are not a patch on an F/C. Every one of these fitted with PT's I have been involved with are always problematic. Problem is I don't have enough bits and pieces to convert them over to F/Cs. The other problem is this one belongs to this blokes father and he didn't tell him he had borrowed it and his old man loves his slasher and would be very annoyed this has happened.