Kawasaki FD731V Troubleshooting
| Engine Model: Kawasaki FD731V |
| Engine Type: 4-cycle V-Twin cylinder OHV vertical shaft liquid-cooled gasoline |
| Total Displacement: 41.2 cu.in (675 cc) |
| Rated Engine Power: 26 Hp (19.4 kW) at 3600 rpm |
| Carburetor Type: Float with fixed main jet |
____________________________________________________________________________________
| Engine is not starting or hard starting |
No gasoline in tank - Fill gasoline up.
Low-quality gasoline - Change fuel.
Air in the fuel system - Air bleeding.
Defective wiring connection of spark plug - Check spark plug wiring connection, repair or change.
Spark plug is faulty - Install new spark plug.
Fuel filter is dirty - Replace fuel filter.
Faulty safety switch - Change damaged switch.
Problems with carburetor adjustment - Adjust as required.
Weak cylinder compression - Inspect cylinder block and change worn parts.
Incorrectly adjusted or damaged throttle cable - Replace cable or adjust properly.
Plugged cooling fins - Wash or clean as required.
Ignition system is defective - Inspect ignition system and change failed components.
Stuck or faulty choke cable - Change or service the cable.
Air filter element is clogged - Service or change air filter.
Dirty or faulty fuel pump - Check fuel pump and change if required.
| Engine stops after starting |
Defective spark plug - Change spark plug as required.
Carburetor is defective or clogged - Repair or clean carburetor.
Damaged ignition coil - Replace ignition coil as necessary.
Loose or broken valve springs - Replace valve springs.
Stuck valves - Valves need to be cleaned.
Engine oil level is insufficient - Fill up the oil to required level.
Engine is under excessive load - Load reducing required.
Plugged cooling fins - Need to clean or wash.
Carburetor is running lean - Use proper settings.
Improper ignition timing - Adjust ignition timing correctly.
Valve setting is incorrect - Adjust valves as required.
Low octane gasoline - Use correct fuel.
Engine is under excessive load - Load reducing required.
Low engine oil level - Fill up the engine oil.
Low idle speed setting is not correct - Adjust idling as required.
Dirty or defective fuel pump - Clean or install new fuel pump.
Crankshaft or main bearings failure - Change or repair worn components.
Valve clearance is improper - Adjust valve clearance.
Piston rings or cylinder bore are damaged - Replace defective parts.
Carburetor is incorrectly adjusted or clogged - Carburetor needs to be adjusted correctly or cleaned.
Plugged air filter - Service or change air filter.
Dirty or defective fuel pump - Test fuel pump and change if necessary.
Defective ignition - Inspect ignition system and change faulty parts.
Damaged cylinder-head gasket - Replace the head gasket.
Valves are stuck or burned - Clean or replace valves.
Damaged or worn push rod - Push rod needs to be changed.
Faulty cylinder block parts - Change defective components.
Oil filter is dirty (if equipped) - Service or change oil filter.
| Excessive fuel consumption |
Insufficient throttle opening - Adjust or replace throttle cable.
Incorrect adjustment of carburetor main jet - Adjust main jet as required.
Spark plug is loose or defective - Re-tighten or replace spark plug.
Stuck, burned, or worn valves - Change or clean valves.
Worn sleeve, rings, or piston - Change defective components.
Valve clearance is incorrect - Adjust valve clearance according to specifications.
| Engine oil consumption is too high |
Gaskets or seals are excessively worn - Replace worn parts to avoid leaks.
Valve guides and stems are worn - Replace the valves.
Worn or broken piston rings - Piston rings replacement required.
Scuffed piston or cylinder liner - Check liner and piston, replace as required.
Breather pipe or hose is plugged - Service or replace.
____________________________________________________________________________________
| Small Engines Technical Specifications |
| Car Engines Technical Specifications |
| Outboard Engines Technical Specifications |
| Industrial Engines Technical Specifications |
