I have a Tm k9b it has a k9c cylinder, it has the dellorto vhsh 30mm. Has any tried the pmw 38mm Carb? I seen the electric start Tm k9es uses the pmw 38mm Carb from the factory, can it be used on the non-electric start engine? any help or Feed back is appreciated
I don’t see how you start the engine would make any difference to the carb. Any time I tried to put a bigger carb on something it just made more problems than it was worth, especially on a small sprint track.
FAA certified jet engine and aircraft technician,
Nicholson Speedway class champion 2001,
Yamaha KT100 Service Center,
41 years karting experience
A bigger carb may get you a little more top end horsepower it will come at the expense of throttle response. The smaller bore creates a higher velocity through the carb. This higher velocity of air aloows the jets and such to be much more responsive at partial throttle.