Ok so my dads america cuts out at 65-70. The problem is jetting If I pull the choke no problems at all. So how do I fix this

A. larger main jet
B. larger pilot jet
C. shim the neddle
D. screw with air fuel mix screws

Ok what do you guys thing ready and go!


Life need a little Triumph! 2008 Triumph Speedmaster, Single baffle drag pipes, lots of black powder coatin,K&N pods, AI removed, TBS needles and a procom cdi.