GASOLINE ENGINE, MUFFLER, FUEL SYSTEM,
AND CLUTCHES
Throttle lever (5) against carburetor idle stop screw (1) with no gap (A).
2505
Figure 15-20 Carburetor Idle Stop Screw
High-Speed 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.
With engine at operating temperature, press the accelerator pedal all the way to the floor.
2.
Measure the engine RPM with a tachometer (CC P/N AM10753) approved for this engine.
3.
Adjust the high-speed RPM screw (3) until the tachometer displays 3825 ±25 RPM (Figure 15-21, Page 15-25).
See following NOTE.
NOTE: Turn the screw counterclockwise to raise the RPM and clockwise to lower the RPM.
4.
Release the accelerator pedal.
1
A
5
2015 Carryall 1500/1700 and XRT 1550 Maintenance and Service Manual
2506
Figure 15-21 Push Governor Arm Clockwise
Engine Control Linkages
Page 15-25
15