HRR216PKA
SERVICE INFORMATION
2-15
SPARK PLUG TEST
1. Remove the spark plug, attach it to the spark plug cap,
and ground the side electrode against the cylinder head
cover.
2. Hold the flywheel brake lever against the handlebar.
3. Pull the recoil starter and check to see if sparks jump
across the electrodes.
.
CRANKSHAFT RUNOUT INSPECTION
If the mower has excessive vibration, or if blade replacement is required
because of damage caused by an object hitting the blade, inspect the
crankshaft runout.
1. Turn the fuel valve to the OFF position, and tilt the mower on its side
so the carburetor is up.
2. Disconnect the spark plug cap, and remove the spark plug (
3. Remove the blades and blade holder, and drive pulley (
).
4. Attach the dial indicator magnetic base to the lower deck surface.
5. Position the tip of the dial indicator perpendicular and
5-10 mm (0.20-0.39 in) from the end of the crankshaft.
6. Zero the dial indicator.
NOTICE
When checking the crankshaft runout, do not allow the dial indicator
tip to drop into the keyway or the dial indicator tip can be damaged.
7. Hold the flywheel brake lever against the handlebar.
8. Use the 3/8-24 x 1 inch blade holder bolt and a wrench to rotate the
crankshaft. Record the runout.
9. Replace the crankshaft if runout exceeds the service limit.
WARNING
Gasoline is highly flammable and explosive. If ignited,
gasoline can burn you severely.
Before testing the spark plug:
•
Be sure there is no spilled fuel near the engine.
•
Place the spark plug away from the spark plug hole.
Crankshaft
Service limit
0.20 mm (0.008 in)
5-10 mm
(0.20-0.39 in)
90
°
90
°
DIAL INDICATOR
(Commercially
available)
3/8-24 x 1 in
BOLT
Summary of Contents for HRR216PKA
Page 5: ...iv HRR216PKA NOTES...
Page 9: ...SPECIFICATIONS HRR216PKA 1 4 NOTES...
Page 45: ...MUFFLER HRR216PKA 5 2 NOTES...
Page 49: ...RECOIL STARTER HRR216PKA 6 4 NOTES...
