Power smart PS4531 - Fuel System; Engine; Troubleshooting

15
Fuel System
Adding fuel stabilizer helps to minimize the formation of fuel gum deposits during storage. Add
stabilizer to the gasoline in the fuel tank and/or fuel storage container. Run the engine for at least 5
minutes after adding to distribute stabilizer throughout the system.
Engine
1. Replace the spark plug with new one of recommended type.
2. Clean air filter.
3. Check the entire unit for loose screws, nuts, and bolts. Replace any damaged, broken, or worn
parts.
4. At the beginning of the next season, use only fresh fuel.
TROUBLESHOOTING
Problem
Cause
Solution
Engine fails to start
Engine ON/OFF switch is off.
Engage ON/OFF switch.
Spark plug wire disconnected.
Connect spark plug wire.
Fuel tank empty or stale fuel.
Fill tank with clean, fresh gasoline.
Engine not primed.
Press primer bulb.
Faulty spark plug.
Clean, adjust gap, or replace.
Blocked fuel line.
Clean fuel line.
Engine flooded.
Wait a few minutes to restart, do not prime.
Engine runs erratic
Spark plug wire loose.
Connect and tighten spark plug wire.
Blocked fuel line or stale fuel.
Clean fuel line. Fill tank with clean, fresh
gasoline.
Water or dirt in fuel system.
Drain fuel tank. Refill with fresh fuel.
Dirty air filter
Please refer to engine manual.
Engine overheats
Engine oil lever low.
Fill crankcase with proper oil.
Air flow restricted.
Clean area around and on top of engine.
Idles poorly
Spark plug fouled, faulty, or
gap too wide.
Reset gap or replace spark plug.
Dirty air cleaner.
Please refer to engine manual.
Excessive
vibration/noise
Blade loose or unbalanced.
Tighten and balance blade.
Bent/damaged blade.
See an authorized service dealer.