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78/83/90 Series Horizontal Shaft Engines
70
Starter Cup
The starter cup is a steel cup that is bolted to the flywheel.
1. Inspect the inside of the starter cup. See Figure 6.2.
NOTE: If the starter was failing to engage the fly-
wheel, and the edges of the slots inside the
cup are burred or damaged, replace the
starter cup.
NOTE: If the starter cup is replaced, the complete
starter should be replaced as well, to prevent
a repeat failure.
2. Block the piston to prevent the crank shaft from
turning by:
2a. Remove the spark plug.
2b. Insert approximately 3.5 feet of starter rope in
the spark plug hole.
NOTE: Leave part of the rope sticking out of the
engine so that the rope can be removed later.
3. Remove the starter cup by removing the flywheel
nut.
4. Install a starter cup:
• Place the starter cup on the flywheel, with the
three bosses on the bottom of the starter cup
into the dimples in the flywheel
• Align the pin on the flywheel fan with the hole in
the starter cup. See Figure 6.3.
5. Install the flywheel nut and tighten it to a torque of
47 - 52 ft-lbs (64 - 70 Nm).
Figure 6.2
Starter cup
Inspect slots
Figure 6.3
Flywheel dimples
Starter cup
Alignment pin
Alignment hole
bosses
For Parts Call 606-678-9623 or 606-561-4983
www.mymowerparts.com