Kawasaki FX850V Troubleshooting
| Engine Model: Kawasaki FX850V |
| Engine Type: 4-cycle V-Twin cylinder OHV vertical shaft air-cooled gasoline |
| Total Displacement: 52 cu.in (852 cc) |
| Rated Engine Power: 27 Hp (20 kW) at 3600 rpm |
| Carburetor Type: Two barrel with fixed main jet |
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| Engine hard to start or won't start |
No gasoline in tank - Add fuel.
Wrong fuel grade - Change gasoline.
Water or air in fuel system - Remove air or water from system.
Defective wiring connection of spark plug - Inspect the spark plug wire connection, replace or repair.
Spark plug is faulty - Install new spark plug.
Fuel filter is plugged - Fuel filter needs to be replaced.
Brake pedal not pushed down - Push the brake pedal down.
Carburetor incorrectly set - Set carb correctly.
Bad compression - Check and change damaged parts.
Throttle cable is damaged or adjusted incorrectly - Replace cable or adjust properly.
| Engine runs intermittently |
Cooling fins are plugged - Clean and wash as required.
Defective ignition - Check ignition and replace faulty components.
Stuck or faulty throttle cable - Replace or clean the cable.
Plugged air filter - Service or change air filter.
Fuel pump is dirty or defective - Inspect fuel pump and change as required.
| Engine starts and stops suddenly |
Damaged spark plug - Install new spark plug.
Faulty or clogged carburetor - Service or change carburetor.
Faulty ignition coil - Change ignition coil as required.
Weak or damaged valve springs - Install new valve springs.
Stuck valves - Valves must be cleaned.
Low engine oil level - Need to add engine oil.
Engine is overloaded - Load reducing required.
Plugged cooling fins - Wash or clean as required.
Carburetor is running lean - Adjust carburetor correctly.
Ignition timing is incorrect - Adjust ignition timing as required.
Valve setting is wrong - Set the valves properly.
| Abnormal engine noise or knocking |
Low octane gasoline - Use proper gasoline.
Engine is under excessive load - Reduce load.
Low engine oil level - Fill up the oil to required level.
Incorrect low idle setting - Correct idle adjustment.
Dirty or faulty fuel pump - Inspect fuel pump and change as required.
Worn crankshaft or main bearings - Repair or replace defective parts.
Excessive valve clearance - Check and adjust.
Cylinder bore or piston rings are damaged - Replace faulty components.
| Engine power is insufficient |
Incorrectly adjusted or dirty carburetor - Service or properly adjust carburetor.
Air filter is dirty - Replace or clean air filter.
Dirty or faulty fuel pump - Test fuel pump and change if necessary.
Ignition failure - Check ignition and replace faulty components.
Cylinder head gasket is blown - Replace cylinder head gasket.
Burned or stuck valves - Service or replace valves.
Worn or damaged push rod - Replace push rod.
Worn cylinder block components - Change defective parts.
Plugged oil filter (if equipped) - Change or clean oil filter.
| Excessive fuel consumption |
Throttle does not open well - Inspect throttle cable and adjust it.
Improper carburetor main jet adjustment - Adjust it correctly.
Faulty or loose spark plug - Tighten or replace spark plug.
Valves are worn, stuck, or burned - Service or replace valves.
Sleeve, piston, or rings are damaged - Replace defective components as required.
Valve clearance is wrong - Adjustment procedure required.
| Engine consuming too much oil |
Defective seals or gaskets - Install new components.
Valve guides or stems are damaged - Need to replace the valves.
Piston rings are stuck or broken - Piston rings replacement required.
Cylinder liner or piston is scored - Inspect piston and liner, replace as required.
Breather hose or pipe is plugged - Service or change.
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