TO REMOVE HOOD AND GRILL AS-
SEMBLY
o Raise hood.
o Unsnap headlight wire connector.
o Stand in front of tractor. Grasp hood at sides, tilt toward engine and lift off of tractor°
=To replace, reverse above procedures Hood
Headlight
Wire
Connector
ENGINE
Manintenance, repair, or replacement of the emission control devices and systems, which are being done at the customers expense, may be performed by any non- road engine repair estyablishment or indi- vidual. Warranty repairs must be per- formed by an authorized engine manufac-
turer's service | outlet. |
TO ADJUST | THROTTLE CONTROL |
Governor | Governor |
Control | Control Plate |
| Clamp |
|
Holes "A" | Screw | Throttle Cable |
The throttle control has been preset at the factory and adjustment should not be nec- essary, Check adjustment as described below before loosening cable° If adjust- ment is necessary, proceed as follows:
o With engine not running, move throttle control lever from slow to choke posi- tiono Slowly move lever from choke to fast position°
o Check that holes "A" in governor con- trol lever and hole in governor plate line- up, if holes "A" are not aligned, loosen clamp screw and move throttle cable until holes are aligned. Tighten clamp screw securely,
TO ADJUST CARBURETOR
NOTE: The carburetor on this engine is low emission. It is equipped with an idle fuel adjusting needle with a limiter cap, which allows some adjustment within the limits allowed by the cap° Do not attempt to remove the limiter caF The limiter cap cannot be removed without breaking the adjusting needler
The carburetor has been preset at the fac- tory and adjustment should not be neces- sary. However, minor adjustment may be required to compensate for differences in fuel, temperature, altitude or load. If the
carburetor does need adjustment, proceed as follows:
tn general, turning idle mixture valve in (clockwise) decreases the supply of fuel to the engine giving a leaner fuel/air mixture. Turning the idle mixture valve out
(counterclockwise) increases the supply of fuel to the engine giving a richer fuel/air mixture.
IMPORTANT: Damage to the needle valve and the seat in carburetor may result if screw is turned in too tight.
PRELIMINARY SETTING -
o Air cleaner assembly must be assem- bled to the carburetor when making car-
buretor adjustments,
o Be sure the throttle control cable is adjusted properly (see above).
FINAL SETTING
,,Start engine and allow to warm for five minutes. Make final adjustments with engine running and shift/motion control
lever in neutral (N) position.
o Move throttle control lever to stow posi- tion,, With finger, rotate and hold throttle lever against idle speed screw, Turn idle speed screw to attain 1750 RPM.
°While still holding throttle lever against
idle speed screw, turn idle mixture valve full travel clockwise then counterclock-
wise until engine runs rough. Turn valve to a point midway between those
two positions Release throttle lever,
27
