GASOLINE ENGINE, MUFFLER, FUEL SYSTEM,
AND CLUTCHES
Engine Control Linkages
15
ENGINE RPM ADJUSTMENT
Vehicle Creep
New vehicles or vehicles with a new drive belt or clutches may crawl forward with the shifter in FORWARD and the
engine idling. This is considered normal until the drive belt is “broken-in” (approximately 15 hours of use). Other
possible symptoms include difficulty or inability to shift into or out of gear and engine stalling.
1.
Operate the vehicle as usual through the "break-in" period. If this condition persists beyond 15 hours of use,
go to step 2.
2.
Inspect the accelerator pedal and cable. Check idle and high-speed RPM.
page 15-25. See High-Speed RPM Adjustment on page 15-26.
Check governor.
2
1
3
1. Carburetor idle stop screw 2. Engine governed idle screw
3. High-speed RPM screw
2504
Figure 15-19
Overview of RPM Adjustment Screws
Idle RPM Adjustment
DANGER
• Do not operate the engine in an enclosed area without proper ventilation. The engine produces carbon
monoxide, which is an odorless, deadly poison.
1.
Place Forward/Reverse handle in NEUTRAL. Start engine and bring it up to operating temperature. Measure the
engine RPM with a tachometer (CC P/N AM10753) approved for this engine.
2.
Hold the throttle lever (5)
on the carburetor against the carburetor idle stop screw (1)
by pushing the governor arm (4) clockwise
as far as it will go.
3.
Adjust carburetor idle stop screw (1) until tachometer displays 1200 ±25 RPM
.
4.
Release throttle lever (5) and governor arm (4). Adjust engine governed idle screw (2)
until tachometer displays 1300 ±25 RPM.
See following NOTE.
NOTE:
With engine at operating temperature and idling at specified RPM, it is normal to have a small gap between
the throttle lever (5) and carburetor idle stop screw (1)
.
2016 Carryall 1500/1700 and XRT 1550 Maintenance and Service Manual
Page 15-25
Содержание Carryall 1500 2016
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