Poulan PPB430VS User Manual - Page 12
Trouble, Cause, Remedy - spark plug
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TROUBLESHOOTING TABLE WARNING: Always stop unit and disconnect spark plug before performing any of the recommended remedies below other than remedies that require operation of the unit. TROUBLE Engine will not start. Engine will not idle properly. Engine will not accelerate, lacks power, or dies under a load. CAUSE REMEDY 1. Engine flooded. 2. Fuel tank empty. 3. Spark plug not firing. 4. Fuel not reaching carburetor. 5. Compression low. 1. See "Starting a Flooded Engine" in Operation section. 2. Fill tank with correct fuel mixture. 3. Install new spark plug. 4. Check for dirty fuel filter; replace. Check for kinked or split fuel line; repair or replace. 5. Contact an authorized service dealer. 1. Fuel not reaching 1. Check for dirty fuel filter; replace. carburetor. Check for kinked or split fuel line; repair or replace. 2. Carburetor requires 2. See "Carburetor Idle Speed Adjustment" adjustment. in Service and Adjustments Section. 3. Crankshaft seals worn. 3. Contact an authorized service dealer 4. Compression low. 4. Contact an authorized service dealer. 1. Air filter dirty. 2. Fuel not reaching carburetor. 3. Spark plug fouled. 4. Carburetor requires adjustment. 5. Carbon build up. 6. Compression low. 1. Clean or replace air filter. 2. Check for dirty fuel filter; replace. Check for kinked or split fuel line; repair or replace. 3. Clean or replace spark plug and re-gap. 4. Contact an authorized service dealer. 5. Contact an authorized service dealer. 6. Contact an authorized service dealer. Engine smokes excessively. 1. Choke partially on. 1. Adjust choke. 2. Fuel mixture incorrect. 2. Empty fuel tank and refill with correct fuel mixture. 3. Air filter dirty. 3. Clean or replace air filter. 4. Carburetor requires 4. Contact an authorized service dealer. adjustment. Engine runs hot. 1. Fuel mixture incorrect. 2. Spark plug incorrect. 3. Carburetor requires adjustment. 4. Carbon build up. 1. See "Fueling Engine" in Operation section. 2. Replace with correct spark plug. 3. Contact an authorized service dealer. 4. Contact an authorized service dealer. -- 12 --