The Tillotson HL-129E carburetor originally was used on Pioneer chainsaws.

 It has been used on small 50cc racing engines, as well modified to be used on 5hp 4 cycle engines, to restrict performance for rookie and Jr classes, or fun Karts with gas as fuel. Carb has a choke system. 

HL-129E Carburetor Specs:

• Gas (60cc 2-Cycle, Jr 5hp Flathead)

• Standard Volume(Single Stack, Gas) Pump Plates

• Venturi .6875"
• Throttle Bore .8125"
• Flange Bolt Spacing 1.8125"
• Air Filter Bolt Spacing 1.375"

Use Our P13-DG EC Pro-Kit for replacing gasket and diaphragms or P4-RK EC Pro-Kit for Complete Rebuilds