2-18
SERVICE INFORMATION
HRR216VKA
8. ENGINE TROUBLESHOOTING
HARD STARTING OR POOR PERFORMANCE
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 (
• Check the engine stop switch (
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 sticking open (
- 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 too high
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 (
), and 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 the cylinder compression is too high,
go to “STARTING DECOMPRESSION
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
Clean or replace the fuel filter.
Clean
Clogged
Check the fuel filter.
Clean or replace the spark arrester.
Clean
Clogged
Check the spark arrester (if equipped).
SERVICE BULLETIN #94 =>
SERVICE BULLETIN #106 =>
SERVICE REMINDER #3 =>
SERVICE BULLETIN #98 =>
Содержание HRR216VKA K10
Страница 5: ...INTRODUCTION HRR216VKA iv NOTES...
Страница 11: ...1 6 SPECIFICATIONS HRR216VKA 3 WIRING DIAGRAM SPARK PLUG IGNITION COIL ENGINE STOP SWITCH NORMALLY CLOSED...
Страница 71: ...6 2 MUFFLER HRR216VKA NOTES...
Страница 75: ...7 4 RECOIL STARTER HRR216VKA NOTES...
Страница 103: ...8 28 FUEL SYSTEM HRR216VKA NOTES...
Страница 161: ...12 8 CLIP DIRECTOR MOWER DECK WHEELS HRR216VKA NOTES...