Honda HRS21 - Troubleshooting

10. TROUBLESHOOTING
Engine will not start
1. No fuel.
2. Flywheel brake cable loose.
3. Spark plug wire loose or
disconnected.
4. Spark plug faulty or improperly gap-
’ ped (p. 30).
5. Engine flooded (p. 19).
6. Dirty air cleaner.
Hard starting or loss of power
1, Dirt. in gas tank.
&. Dirty air cleaner.
3. Water in gas tank or carburetor.
4. Vent in gas cap and/or carburetor
clogged.
Erratic operation
1. Spark plug faulty or improperly gap.
ped (p. 30):
2. Dirty air cleaner.
Engine overheats 1. Spark plug improperly gapped.
2. Dirty air cleaner.
3. Dirty cooling fins.
4. Low oil level.
5. Flywheel clogged by grass, etc.
Excessive vibration
1. Loose blade or engine mounting
hardware.
2. Blade unbalanced. :
36