Service Manual

Single Stage Snowthrower Service Manual 6 - 9
ELECTRIC START SYSTEM
TROUBLESHOOTING
Warning: The electric starter uses 120-volt current, which can cause electrical shock. Do not touch electrical
components or wires while starter circuit is energized.
Starter Pinion Inspection
Inspect the pinion and spline teeth for wear, damaged
or missing teeth. If wear or damage exist, replace
pinion. Rotate the pinion clockwise and see if it turns
freely up the motor shaft. Check the motor shaft and
the inside of the pinion gear for excessive lubrication
and/or dirt buildup. No lubrication is required on the
motor shaft and pinion assembly (Figure 157).
Figure 157 1352-20
STARTER MOTOR FAILS TO TURN
Possible Cause Correction
Power not reaching product Plug another appliance into extension cord, insure cord is OK.
Engine has seized Verify that the engine turns over freely.
Starter switch malfunctioning Check switch using a volt/ohmmeter set for resistance. Ensure
that there is continuity when the switch is depressed. (Refer to:
"CHECKING THE STARTER SWITCH" on page 6 - 10).
Starter wiring not connected Check wire harness for broken wiring or bad connections.
Pinion gear sticking on shaft Clean debris from the pinion gear and/or motor shaft or replace
pinion gear assembly.
Damaged pinion gear or flywheel ring gear Replace pinion gear and/or flywheel ring gear.
Starter motor has failed If all the above conditions are checked and the starter still fails to
turn, the motor must be replaced