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Engine fails to return to idle after a load is
removed.
Defective actuator on HV1858 electronic governor is failing to move
throttle lever—replace actuator as described in the engine manual.
Auto idle switch on HV1858 model has been left in “bypass”—push
switch down to put engine in auto idle mode.
Engine races uncontrollably at full throttle.
Defective control module on HV1858 electronic governor is
triggering actuator to move throttle to wide open position—replace
module as described in the engine manual.
Engine frozen.
No oil in crankcase—service at engine manufacturer service center or
replace engine with equivalent.
Problem with split frame reassembly
Misalignment of top/bottom halves—align and assemble using grease
to lube four frame telescoping sleeves, then secure with appropriate
hardware.
