(21D) Tillotson HW-33A Idle Mixture Screw Packing

(21D) Tillotson HW-33A Idle Mixture Screw PackingThe Tillotson HW 33A idle mixture screw packing is the O ring or packing seal behind the idle mixture screw that provides the primary seal against air leaks in the idle circuit. This packing works with the washer (TI 78A 256X) and spring (TI 24 B449X) as part of the complete idle mixture screw assembly. Replace the packing during every carb rebuild. A worn packing allows unmetered air into the idle circuit, making accurate idle mixture tuning

if the rubber boot is cracked or hardened

Quantity: 1 crank half

or uneven wear during every clutch service

Purchasing the complete assembly saves time versus sourcing and assembling individual components

Replace before it becomes a tech issue

Use a proper seal driver to avoid damage during installation

or any evidence of air leaks

The solid one-piece construction is the standard choice in many 2-cycle classes and is the preference of racers who want clean

The BRP-Rotax Mini Max EVO is a 125cc restricted kart engine designed as the secondary stage for young racers aged 8 to 12 years old

225015) and the carburetor

The KA100 uses two main bearings — one on each side of the crankshaft

and it houses the float mechanism that regulates incoming fuel flow