If everything else is right, there is usually plenty of neutral throttle on a Fastwin, to start it. I would double check the throttle plate to mag cam synch again. Remember that it’s not just about the throttle arm lining up with the mark on the cam roller. It’s about the actual throttle PLATE in the carb beginning to move, when the mark lines up with the cam roller. On these motors, wear on the cam roller and wear in the linkage to the carb can be significant enough that the plate really is not opening when the mark lines up. Also, make sure that the choke functions to also open the throttle plate even more, when it’s pulled out. When the choke is pulled, it is designed to open the throttle plate significantly more. Of course, also double check that you have two good sparks and good enough compression…..

• This reply was modified 3 years, 6 months ago by billw.
• This reply was modified 3 years, 6 months ago by billw.