Poulan HDF900 Owner Manual - Page 16

Troubleshooting Points

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PROBLEM Will not start TROUBLESHOOTING POINTS CAUSE CORRECTION 1. Out of fuel. 2. Fuel valve "OFF". 3. Engine switch "OFF". 4. Engine not "CHOKED" properly. 5. Engine flooded. 6. Bad spark plug or improper gap. 7. Dirty air cleaner. 8. Water in fuel. 1. Fill fuel tank. 2. Turn fuel valve to the "ON" position. 3. Turn engine switch to the "ON" position. 4. See "TO START ENGINE" in the Operation section. 5. Wait several minutes before attempting to start. 6. Replace spark plug or adjust gap. 7. Clean or replace air cleaner cartridge. 8. Empty fuel tank and carburetor, and refill tank with fresh gasoline. Hard to start 1. Throttle control not set properly. 2. Dirty air cleaner. 3. Bad spark plug or improper gap. 4. Stale or dirty fuel. 5. Loose spark plug wire. 1. Place throttle control in "FAST" position. 2. Clean or replace air cleaner cartridge. 3. Replace spark plug or adjust gap. 4. Empty fuel tank and refill with fresh gasoline. 5. Make sure spark plug wire is seated properly on plug. Loss of power 1. Engine is overloaded. 2. Dirty air cleaner. 3. Low oil level/dirty oil. 4. Faulty spark plug. 5. Oil in fuel. 6. Stale or dirty fuel. 7. Water in fuel. 8. Clogged fuel tank. 9. Spark plug wire loose. 10. Dirty engine air screen. 11. Dirty/clogged muffler. 12. Poor compression. 1. Set depth stake and wheels for shallower tilling. 2. Clean or eplace air cleaner cartridge. 3. Check oil level/change oil. 4. Clean and regap or change spark plug. 5. Empty and clean fuel tank and refill, and clean carburetor. 6. Empty fuel tank and refill with fresh gasoline. 7. Empty fuel tank and carburetor, and refill tank with fresh gasoline. 8. Remove fuel tank and clean. 9. Connect and tighten spark plug wire. 10. Clean engine air screen. 11. Clean/replace muffler. 12. Contact an authorized service center/department. Engine overheats 1. Low oil level/dirty oil. 2. Dirty engine air screen. 3. Dirty engine. 4. Partially plugged muffler. 1. Check oil level/change oil. 2. Clean engine air screen. 3. Clean cylinder fins, air screen, muffler area. 4. Remove and clean muffler. Excessive bounce/ difficult handling 1. Ground too dry and hard. 2. Wheels & depth stake incorrectly adjusted. 1. Moisten ground or wait for more favorable soil conditions. 2. Adjust wheels and depth stake. Soil balls up or clumps 1. Ground too wet. 1. Wait for more favorable soil conditions. Engine runs but tiller won't move 1. Tine control is not engaged. 2. V-belt not correctly adjusted. 3. V-belt is off pulley(s). 1. Engage tine control. 2. Inspect/adjust V-belt. 3. Inspect V-belt. Engine runs but labors 1. Tilling too deep. when tilling 2. Throttle control not properly adjusted. 1. Set depth stake for shallower tilling. 2. Check throttle control setting. 16

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16
TROUBLESHOOTING POINTS
Will not start
1. Out of fuel.
1. Fill fuel tank.
2. Fuel valve “OFF”.
2.
Turn fuel valve to the “ON” position.
3. Engine switch “OFF”.
3.
Turn engine switch to the “ON” position.
4. Engine not “CHOKED” properly.
4.
See “TO START ENGINE” in the Operation section.
5. Engine flooded.
5.
Wait several minutes before attempting to start.
6. Bad spark plug or improper gap.
6.
Replace spark plug or adjust gap.
7. Dirty air cleaner.
7.
Clean or replace air cleaner cartridge.
8. Water in fuel.
8.
Empty fuel tank and carburetor, and refill tank with
fresh gasoline.
Hard to start
1. Throttle control not set properly.
1.
Place throttle control in “FAST” position.
2. Dirty air
cleaner.
2.
Clean or replace air cleaner cartridge.
3. Bad spark plug or improper gap.
3.
Replace spark plug or adjust gap.
4. Stale or dirty fuel.
4.
Empty fuel tank and refill with fresh gasoline.
5. Loose spark plug wire.
5.
Make sure spark plug wire is seated properly on
plug.
Loss of power
1. Engine is overloaded.
1.
Set depth stake and wheels for shallower tilling.
2. Dirty air cleaner.
2.
Clean or eplace air cleaner cartridge.
3. Low oil level/dirty oil.
3. Check oil level/change oil.
4. Faulty spark plug.
4.
Clean and regap or change spark plug.
5. Oil in fuel.
5.
Empty and clean fuel tank and refill, and clean
carburetor.
6. Stale or dirty fuel.
6.
Empty fuel tank and refill with fresh gasoline.
7. Water in fuel.
7.
Empty fuel tank and carburetor, and refill tank with
fresh gasoline.
8. Clogged fuel tank.
8. Remove fuel tank and clean.
9. Spark plug wire loose.
9.
Connect and tighten spark plug wire.
10. Dirty engine air screen.
10. Clean engine air screen.
11. Dirty/clogged muffler.
11. Clean/replace muffler.
12. Poor compression.
12. Contact an authorized service center/department.
Engine overheats
1. Low oil level/dirty oil.
1. Check oil level/change oil.
2. Dirty engine air screen.
2. Clean engine air screen.
3. Dirty engine.
3.
Clean cylinder fins, air screen, muffler area.
4. Partially plugged muffler.
4. Remove and clean muffler.
Excessive bounce/
1. Ground too dry and hard.
1.
Moisten ground or wait for more favorable soil
difficult handling
conditions.
2. Wheels & depth stake incorrectly adjusted.
2. Adjust wheels and depth stake.
Soil balls up or clumps
1. Ground too wet.
1.
Wait for more favorable soil conditions.
Engine runs but tiller
1. Tine control is not engaged.
1. Engage tine control.
won’t
move
2. V-belt not correctly adjusted.
2. Inspect/adjust V-belt.
3. V-belt is off pulley(s).
3. Inspect V-belt.
Engine runs but labors
1. Tilling too deep.
1.
Set depth stake for shallower tilling.
when tilling
2. Throttle control not properly adjusted.
2. Check throttle control setting.
PROBLEM
CAUSE
CORRECTION