RV CE AND ADJUSTMENTS
ENGINE
TO ADJUST THROTTLE CONTROL CABLE
(See Fig. 31)
The throttle control has been preset at the factory and adjustrnent should not be necessary. Check adjustment as described below before loosening cable. If adjustment is necessary, proceed as follows:
•With engine not running, move throttle control lever from slow (_) to cheke (N) position. Slowly move lever from choke (N) to fast
. | Check | to see if hole in throttle lever and hole in speed |
| control | bracket are aligned. |
. | If holes are not aligned, loosen cable clamp screw and | |
| align the holes by inserting a pencil or a 1/4" drill bit | |
| through | both holes_ |
°Pull throttle cable up to remove slack and tighten cable clamp screw. Remove alignment pencil or drift bit.
TO ADJUST CARBURETOR (See Fig. 32)
The carburetor has been preset at the factory and adjust- ment should not be necessary. However, minor adjust- ment may be required to compensate for differences in fuel, temperature, altitude or load. If the carburetor does need adjustment, proceed as foflows:
In general, turning the adjusting needles in (clockwise) decreases the supply of fuel to the engine giving a leaner fuel/air mixture. Turning the adjusting needles out (counter- clockwise) increases the supply of fuel to the engine giving a richer fue!/air mixture.
IMPORTANT: DAMAGE TO THE NEEDLES AND THE
SEATS IN CARBURETOR MAY RESULT IF NEEDLE IS TURNED IN TOO TIGHT
NOTE: The carburetor on this engine is low emission_ It is equipped with an idle fuel adjusting needle with a iimiter cap, which allows some adjustment within the limits allowed by the cap, Do not attempt to remove the limiter cap. The limiter cap cannot be removed without breaking the adjusting needle,
•Be sure you have a clean air filter and the throttle control cable is adjusted properly (see above).
=Start engine and allow to warm for five minutes. Make adjustments with engine running and shift/motion control lever in neutral (N) position.
oIdle speed settinq - With throttle control lever in slow (_) position, engine should idle at 1750 RPM. If engine idles too slow or fast, turn idle speed adjusting screw in or out until correct idle is attained.
,Idle fuel needle setting - With throttle control lever in slow (,_) position, turn idle fuel adjustment needle in
clockwise) until engine begins to die and then turn out counterclockwise) until engine runsrough. Turn needle to a point midway between those two positions.
=Recheck idle speed_ Readjust if necessary.
ACCELERATION TEST -
•Move throttle control lever from slow (,_) to fast (,=_) position_ If engine hesitates or dies, turn idle fuel adjusting needle out (counterclockwise) 1/8 turn. Re- peat test and continue to adjust, if necessary, until engine accelerates smoothly.
High speed stop is factory adjusted. Do not adjust - damage may result.
IMPORTANT: NEVER TAMPER WITH THE ENGINE GOVERNOR, WHICH IS FACTORY SET FOR PROPER ENGINE SPEED OVERSPEEDINGTHEENGINEABOVE THE FACTORY HIGH SPEED SETTING CAN BE DANGEROUS
HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR
NEAREST AUTHORIZED SERVICE CENTER/
DEPARTMENT, WHICH HAS PROPER EQUIPMENT AND
EXPERIENCE TO MAKE ANY NECESSARY ADJUSTMENTS.
CLAMP
CABLE ,_
SCREW_.._.
THROTTLE
LEVER
FIG, 31
IDLE SPEED
ADJUSTING
SCREW
IDLE FUEL//
ADJUSTING
NEEDLE
FIG= 32
26
