Product Manual

wc_tx004574gb.fm

Maintenance GP

5.6 Cleaning the Sediment Cup

1. Turn the fuel valve off.

2. Remove the sediment cup (a) and

the O-ring (b).

3. Wash the sediment cup in a

nonflammable solvent.

4. Dry and install the sediment cup.

5. Replace the O-ring with a new one.

6. Turn the fuel valve on and check for

leaks.

5.7 Adjusting the Carburetor

1. Start the engine and allow it to warm up to operating temperature.

2. Set the pilot screw (a) two turns out. See Note.

3. With the engine idling, turn the pilot screw (a) in or out to the setting that

produces the highest rpm.

4. After the pilot screw is adjusted, turn the throttle stop screw (b) to obtain the

standard idle speed. See Technical Data.

Note: On some engines the pilot screw is fitted with a limiter cap (c) to prevent

excessive enrichment of the air-fuel mixture in order to comply with emission

regulations. The mixture is set at the factory and no adjustment should be

necessary. Do not attempt to remove the limiter cap. The limiter cap cannot be

removed without breaking the pilot screw.

wc_gr000029

wc_gr010584