carb adjustment

frontier · Jan 19, 2013

are there any instructions around on how
to adjust the settings on a zenith carb B3NN9510A
thaanks for the info.

Tom N MS · Jan 19, 2013

Notes I made yrs ago:: ZENITH Carb. Adjustment - ..Initial adjustment for the Zenith is as follows: 2 ½ turns out on the bottom T - shaped, high speed main jet and 3/4 turn out on the idle needle on top..After warm up and at 3/4 throttle turn the main adj. T shaped bottom screw in till the engine stumbles then turn it out till it smooths out. Adjust the top/idle screw for the smoothest slow speed..My main jet/bottom T-shaped screw wound up at three turns out and works great. No instructions come with a Zenith so just thought I"d post this info that was shared with me...and it works.... http://www.farmersserviceinc.com/

carb adjustment

frontier

New User

Tom N MS

Well-known Member

Similar threads