In-stock parts ship the same dayGenerator Repair FAQs: Troubleshooting, Parts & Fixes
Start by matching the symptom to the problem: battery keeps dying, leaking gas, will not start, will not stay running, or runs rough. Check simple causes first, including old fuel, low oil shutdown, spark plug condition, fuel valve position, fuel cap venting, carburetor clogging, battery charge, and visible fuel leaks. Use the generator repair help page to choose the closest troubleshooting path.
Use the model number from your generator label to filter parts that fit your exact unit. Generators can vary by engine, brand, fuel system, alternator setup, voltage output, and control configuration, so do not rely on appearance alone. Start with generator replacement parts to narrow by model, symptom, or part category.
A generator battery that keeps dying may have a defective voltage regulator, bad alternator, weak battery, loose connection, or charging circuit issue. The voltage regulator should send the proper amount of voltage from the alternator to the battery while the engine is running. Use generator battery keeps dying troubleshooting to compare the likely causes.
Yes. If the voltage regulator is defective, the battery may not receive enough charging voltage while the engine is running, causing it to drain quickly. Check wiring and charging output before replacing the regulator. If testing points to this part, compare generator voltage regulator parts by model number.
Yes. The alternator helps supply charging voltage to the battery, and a failed alternator can leave the battery undercharged or dead. Use a multimeter to test the alternator according to the generator service information. If the alternator is defective, match the replacement through generator alternator parts.
A generator leaking gas may have a dried-out carburetor gasket, failed float bowl gasket, leaking carburetor bowl gasket, cracked fuel tank, damaged fuel line, or cracked primer bulb. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. Stop using the generator until the leak is found because gasoline leaks are a fire hazard. Use generator leaking gas troubleshooting to identify the likely source.
Yes. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. If gas is leaking from the bottom of the carburetor, a dried, cracked, or missing carburetor gasket, float bowl gasket, or bowl gasket may be the cause. Inspect the carburetor area carefully and replace the gasket rather than trying to patch the leak. Match the correct part through generator carburetor gasket parts.
Yes. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. A cracked fuel tank or dry, cracked fuel line can leak gasoline and should be replaced instead of repaired with tape, sealant, or patching. Inspect the tank, fuel shutoff area, fuel line connections, and hose condition. If the fuel line is damaged, replace it with the correct model-specific fuel line.
A generator that will not start may have a worn spark plug, clogged carburetor, bad ignition coil, defective recoil starter, faulty start switch, bad safety switch, old fuel, or a fuel delivery problem. Start with fresh fuel, oil level, spark plug condition, and carburetor condition before replacing ignition parts. Use generator will not start troubleshooting to follow the repair path.
Yes. A cracked insulator, burned electrode, heavy carbon buildup, or no spark during testing means the spark plug should be replaced. A spark plug tester should show a strong spark while the engine is cranking. If the spark plug is worn or damaged, match the correct replacement through generator spark plug parts.
Yes. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. Old fuel can leave a thick, sticky residue that clogs the carburetor jets and prevents the engine from starting. Try cleaning the carburetor with carburetor cleaner first. If cleaning does not work, rebuild or replace it with the correct generator carburetor.
Yes. The ignition coil sends voltage to the spark plug while the engine is running, and a defective coil can prevent the engine from starting. Confirm the spark plug is good first, then test the coil with an ignition coil tester. If it fails testing, replace the ignition coil by model number.
Yes. The recoil starter turns the crankshaft so the engine can start. If the starter assembly does not engage the crankshaft, the engine will not turn over correctly. Remove the starter assembly and inspect whether the tabs engage when the rope is pulled and retract when the rope rewinds.
Yes. A start switch that works intermittently or a failed safety switch can interrupt the starting circuit. Test switches with a multimeter for continuity according to the wiring diagram. Compare the switch continuity state with the wiring diagram or service information for the exact model rather than assuming every switch uses the same contact logic.
A generator that starts but will not stay running is often caused by bad fuel in the float bowl, a clogged carburetor, worn carburetor components, or a clogged fuel cap vent. Old fuel can leave varnish-like deposits that block small carburetor jets and ports. Use generator will not stay running troubleshooting to narrow the cause.
Yes. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. If the carburetor is clogged but reusable, a repair kit can help rebuild the carburetor after cleaning. This is often needed when old fuel has left deposits inside small passages, jets, or gaskets. Compare model-specific generator carburetor repair kit parts before ordering.
Yes. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. As fuel leaves the tank, the fuel cap vent lets air enter so fuel can continue flowing to the carburetor. If the vent is clogged, a vacuum can form in the tank and stop fuel flow. Shut the generator off and let it cool before handling the fuel cap. If the service procedure calls for a vent check, perform it outdoors and follow the model instructions. If the cap vent is confirmed blocked, replace the cap with the correct generator fuel cap.
A generator that runs rough may have a clogged carburetor, dirty carburetor passages, worn spark plug, clogged fuel filter, old fuel, or restricted fuel flow. Start by replacing old fuel, inspecting the spark plug, and checking the carburetor and fuel filter. Use generator runs rough troubleshooting to compare the common causes.
Yes. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. Fuel left in the generator for a long period of time can evaporate and leave behind sticky deposits that clog the carburetor and fuel system. Drain old fuel, clean the carburetor if needed, and replace affected fuel system parts if cleaning does not restore normal operation.
Yes. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. A clogged fuel filter can restrict fuel flow to the carburetor, which can make the generator run unevenly, stall, or lose power under load. If old fuel was left in the tank, replace the fuel filter and drain the old fuel. Match the replacement through generator fuel filter parts.
Common DIY replacement parts include spark plugs, air filters, fuel filters, fuel caps, carburetors, carburetor repair kits, fuel lines, recoil starters, start switches, safety switches, batteries, voltage regulators, and some alternator or charging parts. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. Shut the generator off and disconnect the spark plug wire before servicing ignition or moving parts.
Replace the carburetor if cleaning does not clear the jets and passages, if the body is corroded, if parts are damaged, or if the generator still will not start, stay running, or run smoothly after cleaning and rebuilding. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. A carburetor repair kit may be enough when the main body is usable, but a full replacement is usually better when deposits or damage are severe.
Use fresh fuel, drain or stabilize fuel before storage, replace the spark plug and filters at recommended intervals, keep the generator clean, inspect fuel lines for cracks, and run the generator periodically according to the owner's manual. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. Most generator starting, stalling, and rough-running problems begin with old fuel or restricted fuel flow.
Your generator model number is usually listed on a label or ID tag on the frame, engine housing, control panel area, or near the motor casing. Some generators may also have a separate engine model number, so check both labels when matching parts. Use the full model number, not just the brand or serial number. If you need help locating it, use the model number help guide before shopping for parts.
Start by matching the symptom to the problem: battery keeps dying, leaking gas, will not start, will not stay running, or runs rough. Check simple causes first, including old fuel, low oil shutdown, spark plug condition, fuel valve position, fuel cap venting, carburetor clogging, battery charge, and visible fuel leaks. Use the generator repair help page to choose the closest troubleshooting path.
Use the model number from your generator label to filter parts that fit your exact unit. Generators can vary by engine, brand, fuel system, alternator setup, voltage output, and control configuration, so do not rely on appearance alone. Start with generator replacement parts to narrow by model, symptom, or part category.
A generator battery that keeps dying may have a defective voltage regulator, bad alternator, weak battery, loose connection, or charging circuit issue. The voltage regulator should send the proper amount of voltage from the alternator to the battery while the engine is running. Use generator battery keeps dying troubleshooting to compare the likely causes.
Yes. If the voltage regulator is defective, the battery may not receive enough charging voltage while the engine is running, causing it to drain quickly. Check wiring and charging output before replacing the regulator. If testing points to this part, compare generator voltage regulator parts by model number.
Yes. The alternator helps supply charging voltage to the battery, and a failed alternator can leave the battery undercharged or dead. Use a multimeter to test the alternator according to the generator service information. If the alternator is defective, match the replacement through generator alternator parts.
A generator leaking gas may have a dried-out carburetor gasket, failed float bowl gasket, leaking carburetor bowl gasket, cracked fuel tank, damaged fuel line, or cracked primer bulb. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. Stop using the generator until the leak is found because gasoline leaks are a fire hazard. Use generator leaking gas troubleshooting to identify the likely source.
Yes. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. If gas is leaking from the bottom of the carburetor, a dried, cracked, or missing carburetor gasket, float bowl gasket, or bowl gasket may be the cause. Inspect the carburetor area carefully and replace the gasket rather than trying to patch the leak. Match the correct part through generator carburetor gasket parts.
Yes. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. A cracked fuel tank or dry, cracked fuel line can leak gasoline and should be replaced instead of repaired with tape, sealant, or patching. Inspect the tank, fuel shutoff area, fuel line connections, and hose condition. If the fuel line is damaged, replace it with the correct model-specific fuel line.
A generator that will not start may have a worn spark plug, clogged carburetor, bad ignition coil, defective recoil starter, faulty start switch, bad safety switch, old fuel, or a fuel delivery problem. Start with fresh fuel, oil level, spark plug condition, and carburetor condition before replacing ignition parts. Use generator will not start troubleshooting to follow the repair path.
Yes. A cracked insulator, burned electrode, heavy carbon buildup, or no spark during testing means the spark plug should be replaced. A spark plug tester should show a strong spark while the engine is cranking. If the spark plug is worn or damaged, match the correct replacement through generator spark plug parts.
Yes. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. Old fuel can leave a thick, sticky residue that clogs the carburetor jets and prevents the engine from starting. Try cleaning the carburetor with carburetor cleaner first. If cleaning does not work, rebuild or replace it with the correct generator carburetor.
Yes. The ignition coil sends voltage to the spark plug while the engine is running, and a defective coil can prevent the engine from starting. Confirm the spark plug is good first, then test the coil with an ignition coil tester. If it fails testing, replace the ignition coil by model number.
Yes. The recoil starter turns the crankshaft so the engine can start. If the starter assembly does not engage the crankshaft, the engine will not turn over correctly. Remove the starter assembly and inspect whether the tabs engage when the rope is pulled and retract when the rope rewinds.
Yes. A start switch that works intermittently or a failed safety switch can interrupt the starting circuit. Test switches with a multimeter for continuity according to the wiring diagram. Compare the switch continuity state with the wiring diagram or service information for the exact model rather than assuming every switch uses the same contact logic.
A generator that starts but will not stay running is often caused by bad fuel in the float bowl, a clogged carburetor, worn carburetor components, or a clogged fuel cap vent. Old fuel can leave varnish-like deposits that block small carburetor jets and ports. Use generator will not stay running troubleshooting to narrow the cause.
Yes. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. If the carburetor is clogged but reusable, a repair kit can help rebuild the carburetor after cleaning. This is often needed when old fuel has left deposits inside small passages, jets, or gaskets. Compare model-specific generator carburetor repair kit parts before ordering.
Yes. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. As fuel leaves the tank, the fuel cap vent lets air enter so fuel can continue flowing to the carburetor. If the vent is clogged, a vacuum can form in the tank and stop fuel flow. Shut the generator off and let it cool before handling the fuel cap. If the service procedure calls for a vent check, perform it outdoors and follow the model instructions. If the cap vent is confirmed blocked, replace the cap with the correct generator fuel cap.
A generator that runs rough may have a clogged carburetor, dirty carburetor passages, worn spark plug, clogged fuel filter, old fuel, or restricted fuel flow. Start by replacing old fuel, inspecting the spark plug, and checking the carburetor and fuel filter. Use generator runs rough troubleshooting to compare the common causes.
Yes. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. Fuel left in the generator for a long period of time can evaporate and leave behind sticky deposits that clog the carburetor and fuel system. Drain old fuel, clean the carburetor if needed, and replace affected fuel system parts if cleaning does not restore normal operation.
Yes. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. A clogged fuel filter can restrict fuel flow to the carburetor, which can make the generator run unevenly, stall, or lose power under load. If old fuel was left in the tank, replace the fuel filter and drain the old fuel. Match the replacement through generator fuel filter parts.
Common DIY replacement parts include spark plugs, air filters, fuel filters, fuel caps, carburetors, carburetor repair kits, fuel lines, recoil starters, start switches, safety switches, batteries, voltage regulators, and some alternator or charging parts. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. Shut the generator off and disconnect the spark plug wire before servicing ignition or moving parts.
Replace the carburetor if cleaning does not clear the jets and passages, if the body is corroded, if parts are damaged, or if the generator still will not start, stay running, or run smoothly after cleaning and rebuilding. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. A carburetor repair kit may be enough when the main body is usable, but a full replacement is usually better when deposits or damage are severe.
Use fresh fuel, drain or stabilize fuel before storage, replace the spark plug and filters at recommended intervals, keep the generator clean, inspect fuel lines for cracks, and run the generator periodically according to the owner's manual. Work outdoors or in a well-ventilated area. Keep sparks and open flames away from fuel. Let the engine cool fully before draining fuel or removing fuel-system components. Most generator starting, stalling, and rough-running problems begin with old fuel or restricted fuel flow.