HRR216PKA
SERVICE INFORMATION
2-7
7. TROUBLESHOOTING
ENGINE
Hard Starting or Won’t Start Using the Recoil Starter
Sufficient fuel in tank
Refuel.
• Install a new spark plug, then restart
the engine.
• Check the carburetor for flooding.
• Check the ignition coil air gap (
).
• See “CHOKE CONTROL
INSPECTION (K8 only)” (
).
Check the valve clearance (
), and
then perform the cylinder compression
test. If the cylinder compression is still
too low, perform a leak down test.
If the air leak down test shows air
leakage, check the following as
determined by the test:
- Valve seat width (
)
- Valve face irregularly worn (
)
- Piston ring side clearance (
- Piston ring width (
- Piston ring end gap (
)
- Piston skirt O.D. (
- Cylinder sleeve I.D. (
)
Check the fuel level.
Install the spark plug and restart the engine.
No fuel in tank
Dry
Wet
Remove the spark plug and inspect
(
).
Good spark
No or weak spark
Compression is
high (>80 psi)
Install a compression gauge in the spark plug
hole (
) and crank the engine several
times.
Install the spark plug in the plug cap and
perform the spark test (
).
Remove (
), disassemble (
clean the carburetor (
Check the choke butterfly with the engine cold.
Choke closed
Confirm the fuel quality. If gasoline is more
than 30 days old, the engine may be hard to
start.
Fresh fuel
Drain the fuel system, and refill with
fresh gasoline.
Stale fuel
Check the valve clearance
), and then perform the cylinder
compression test (
If compression is still high (>80 psi), a
malfunctioning decompressor is the
cause (
See “CHOKE CONROL SYSTEM
(ACS)” (
).
Make sure the fuel valve is ON.
Clean or replace the air filter.
Clean
Clogged
Check the air filter.
Compression
is too low
Choke partially open
Compression normal
Replace the flywheel brake cable.
Starts
Manually pull and hold the flywheel brake lever
at the engine, and then try to start the engine.
Does not start
SERVICE BULLETIN #98 =>
SERVICE BULLETIN #106 =>
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...
