MAINTENANCE
61
7400 (GM) 330970 (3--07)
FUEL FILTER (LPG)
The fuel filter traps fuel contaminants. The fuel
filter element is located inside the fuel lockoff
valve on the LPG convertor going into the
electronic fuel injection system.
FOR SAFETY: When servicing machine,
keep flames and sparks away from fuel
system service area. Keep area well
ventilated.
Replace the fuel filter element every 400 hours of
operation.
ELECTRONIC PRESSURE REGULATOR (LPG)
(For machines serial number 009000 and
above)
Remove the sensor and drain the oil from the
LPG electronic pressure regulator after every 100
hours of operation.
FOR SAFETY: When servicing machine,
keep flames and sparks away from fuel
system service area. Keep area well
ventilated.
ELECTRONIC FUEL INJECTION
The electronic fuel injection system requires no
adjustment.
The fuel injection system is equipped with a
“manifold absolute pressure sensor” (MAP
Sensor). The MAP sensor senses barometric
pressure and automatically corrects the fuel
system calibration for changes in altitude. This
means the air/fuel mixture will always be
optimized, regardless of elevation (or barometric
pressure), however, the engine will still lose 3.5%
power for every 1000 ft increase in elevation.
The Idle speed is set at 950 + 50 rpm
