Changing The Main Jet - Pioneer 1200 Maintenance Service Manual

14
FUEL SYSTEM

CHANGING THE MAIN JET

See General Warning, Section 1, Page 1-1.
1. Remove the carburetor (Figure 14-2, Page 14-4).
1.1. Turn the key switch to OFF and remove the key. Place the Forward/Reverse handle in NEUTRAL.
Chock the wheels.
1.2. Disconnect the battery cables as instructed. See WARNING "To avoid unintentionally start-
ing..." in General Warning, Section 1, Page 1-2.
1.3. Turn fuel valve on fuel tank to the closed (OFF) position (Figure 14-20, Page 14-27).
1.4. Loosen the intake air hose clamp (22) and disconnect the hose (23) at the carburetor end only.
1.5. Remove the governor cable cotter pin (25) and clevis pin (24) (carburetor end only).
1.6. Disconnect the carburetor vent line (14).
1.7. Disconnect the fuel supply line (26) at the carburetor end only. Plug the end of the fuel line to tem-
porarily prevent fuel leakage.
1.8. Chock the front wheels and place a floor jack under the engine mounting plate, and raise the engine
until the front bracket snubber is fully compessed. This will allow the carburetor to pass the electrical
box assembly. (Figure 14-1, Page 14-2).
Figure 14-1 Compress Engine Snubber
1.9. Remove the carburetor retaining nuts (19), intake pipe (17), and carburetor (12). See following
NOTE.
NOTE: Note the orientation of the gasket (16), between the carburetor intake pipe (17) and the carburetor
body (12) so that it can be replaced in the same orientation (Figure 14-2, Page 14-4).
Disconnect the throttle return spring (11). Note the orientation so that it can be replaced the same.
The carburetor must be kept upright during removal.
2. Position the carburetor with the drain screw (11) over a catch basin (Figure 14-3, Page 14-5).
3. Drain all the fuel from the bowl into the catch basin. Tighten the drain screw to 10 in-lb (1.1 N·m) and
return fuel to the fuel tank or dispose of properly.
4. Mark the body of the carburetor and the carburetor fuel bowl with an indelible ink marker so that, after
removal, the bowl can be installed again in the same position.
5. Remove the carburetor fuel bowl retaining screw and washer (12) and fuel bowl (10) and clean it with a
nonflammable solvent. See following NOTE.
Page 14-2 2003 Pioneer 1200/1200SE Gasoline Vehicle Maintenance and Service Manual
SNUBBER
BRACKET
LIFT
SNUBBER
Carburetor