Cleaning & Inspection

Except for air horn assembly with idle bleed valve in place, carburetor should be cleaned in suitable cold immersion type cleaner. The air horn assembly, with air bleed valve in place, should be cleaned using only a low volatility cleaning solvent.
The air horn with bleed valve, solenoid idle stop, thermostatic choke cover and coil, rubber parts, plastic parts, diaphragm and pump plunger should not be soaked in carburetor cleaner. Soaking can cause these parts to swell, harden or distort.
Provide special protection for metering rods and jets and the idle air bleed valve when cleaning to prevent damage.
1. Thoroughly clean all metal parts and blow dry with compressed air.
2. Ensure all fuel passages and metering are free of burrs and dirt. Do not use drill or wire to clean jets.
3. Inspect upper and lower surfaces of carburetor castings for damage.
4. Inspect holes in levers for excessive wear or out of roundness, replacing as necessary.
5. Inspect all plastic parts, replacing as necessary.