engine miss

[Guest]

i have a AC b112 it starts good idels good runs well untill i put it under load (tilling) then i starts to miss and back fire !any ideas on what may cure this :;thank you bob

[JDSnyder]

Sounds like it could be governor adjustment, not enough resistance on the spring, so it floods the engine when it comes under load. Try adjusting your governor spring a notch tighter.

[JDSnyder]

Have you checked your plug yet? May be blowing out under load. Scott

[JimV]

Might be the high-speed needle valve on carburetor. Sounds like it may be starving it for gas. Turn it in by hand until it seats. Then, turn it out 1 and 1/4 turns. Start engine and run at full speed and turn it both ways until it starts to bogg and then set it in the middle of these two extremities.

[knispow]

I have a B-110 that I just couldn't get running, it would start and idle great, but as soon as I put it under any load it would start missing terribly, I rebuilt the carb and new spark plug. Neither helped, then I changed the condenser. HUGE DIFFERENCE! Runs great. Good Luck, Kevin