S27 FE 350 FUEL SYSTEM
Choke and Air Intake System
18
ENGINE RPM ADJUSTMENT
DANGER
• Do not operate gasoline vehicle in an enclosed area without proper ventilation. The engine produces
carbon monoxide, which is an odorless, deadly poison.
1.
If the governor is adjusted, proceed to step 2; otherwise, adjust the governor.
See Governor Cable Installation
2.
Connect battery and spark plug wire(s).
See Connecting the Battery – Gasoline Vehicles, Section 1, Page 1-3.
3.
XRT 900:
Place the Forward/Reverse handle in the NEUTRAL position and chock the wheels.
4.
Turf/Carryall 252:
Place the Forward/Reverse handle in the NEUTRAL position, chock the wheels, and the
neutral lockout switch in the MAINTENANCE position.
5.
Connect a tachometer (CCI P/N 1016112) to the spark plug lead.
6.
With the tachometer connected, and the engine at normal operating temperature, check high speed RPM. With
the accelerator pedal pressed to the floor, the tachometer should read 3050 ±30 RPM (XRT 900) or 2900
±30 RPM (Turf/Carryall 252).
7.
To
reduce
RPM, loosen the accelerator cable retaining nut on the outside of the electrical box wall and tighten
the retaining nut on the inside of the wall until the specified RPM is reached
. To
increase
RPM, loosen the cable retaining nut inside the electrical box and tighten the nut outside the box until
the specified RPM is reached.
8.
Be sure both retaining nuts are locked against the electrical box and then check the RPM again. If the RPM
needs to be adjusted, repeat step 7.
9.
If more adjustment is required than the cable housing will allow, make sure the spring on the other end of the
accelerator cable is properly positioned. Excessive belt and torque converter wear can also prevent proper RPM
adjustment. Check them for excessive wear.
See See Section 21 – Torque Converter: Gasoline Vehicles. .
CHOKE AND AIR INTAKE SYSTEM
See General Warning on page 1-1.
GENERAL INFORMATION
The choke system is a simple mechanism requiring very little or no maintenance. The system consists of a choke
assembly that is attached to the driver side of the front body, an air filter housing with a hose that is attached to the
carburetor, and an air duct that provides the engine with air from outside the engine compartment. Clean, cool air
is drawn through the choke assembly and into the air cleaner intake. This feature increases engine horsepower
and extends air filter life.
The choke system aids in starting the engine in cold weather. When starting a cold engine, the choke cable handle is
pulled. This restricts the air flow, creating a “fuel rich” mixture in the carburetor. The choke cable handle is pulled
until the engine starts, and then is released. The air flow to the engine is no longer restricted, and the engine
operates normally.
The choke assembly is adjusted at the factory and does not require field adjustment; however, if the choke assembly is
subjected to abuse or damaged, it may become necessary to replace the assembly.
2007-2009 Turf 252, Carryall 252 and XRT 900 Maintenance and Service Manual
Page 18-11
