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Christian BuckAug 7, 2025
What to do if my KYMCO MXU 250 Offroad Vehicle has no fuel?
- JJessica StokesAug 7, 2025
If your KYMCO Offroad Vehicle has no fuel, supply fuel to the vehicle.
What to do if my KYMCO MXU 250 Offroad Vehicle has no fuel?
If your KYMCO Offroad Vehicle has no fuel, supply fuel to the vehicle.
How to fix water or dirt mixed in fuel of KYMCO MXU 250 Offroad Vehicle?
If there is water or dirt mixed in the fuel of your KYMCO Offroad Vehicle, clean the filter element and the fuel tank.
What to do if KYMCO MXU 250 has wet spark plug with no spark?
If your KYMCO Offroad Vehicle has a wet spark plug with no spark, wipe it clean with a dry cloth. Also, adjust the plug gap or replace the plug.
General| Brand | KYMCO |
|---|---|
| Model | MXU 250 |
| Category | Offroad Vehicle |
| Language | English |
Location of frame and engine serial numbers.
Detailed technical specifications for MXU 250 and 300 models.
Important safety and operational guidelines for servicing.
Standard torque specifications for important fasteners.
List of specialized tools required for maintenance.
Specifies lubrication points for engine and frame components.
Illustrates the correct routing of cables and wiring harnesses.
Electrical wiring diagrams for various models and conditions.
Troubleshooting guides for common engine and system issues.
General service information and torque specifications for frame covers and exhaust mufflers.
Troubleshooting common issues with exhaust mufflers.
Procedures for removing and installing various frame covers.
Procedures for removing and installing the exhaust muffler.
General service information and specifications for inspection and adjustment.
Recommended schedule for routine inspections and maintenance.
Inspection and adjustment of fuel line, throttle, and air cleaner.
Cleaning and inspection of the air filter for the drive belt.
Inspection of secondary air supply system and spark plug.
Procedure for inspecting and adjusting valve clearance.
Adjusting carburetor idle speed and checking ignition timing.
Checking cylinder compression and engine oil level.
Procedures for replacing transmission and final gear case oil.
Inspecting the drive belt and brake pads for wear.
Inspecting brake fluid and adjusting headlight aim.
Inspecting the steering system for play and wear.
Procedure for adjusting front wheel toe-in.
Inspecting wheels and tires for damage and checking pressure.
Adjusting drive chain slack for the MXU 250.
Adjusting the drive select lever mechanism.
Inspecting and lubricating control cables.
Lubricating the rear suspension components (MXU 250).
Inspecting and servicing the cooling system.
Cleaning the spark arrester for off-road use.
General service information for the lubrication system.
Specifications for oil pump components and clearances.
Troubleshooting common lubrication system issues.
Procedures for engine oil and oil filter replacement.
Procedures for removing, disassembling, and inspecting the oil pump.
General service information and specifications for the fuel system.
Troubleshooting common fuel system problems.
Procedures for removing and installing the fuel tank.
Procedures for removing, disassembling, and inspecting the fuel valve.
Procedures for disassembling and assembling the throttle valve.
Procedures for removing, disassembling, and cleaning the carburetor.
Procedures for removing and installing the air cleaner housing.
Procedures for removing and installing the PAIR solenoid valve.
General service information regarding engine removal.
Step-by-step procedure for removing the engine from the MXU 250.
Step-by-step procedure for installing the engine on the MXU 250.
Step-by-step procedure for removing the engine from the MXU 300.
Step-by-step procedure for installing the engine on the MXU 300.
General service information for cylinder head and valves.
Specifications for cylinder head, valve clearance, and camshaft.
Torque values for cylinder head components.
Special tools for cylinder head and valve service.
Troubleshooting common cylinder head and valve issues.
Procedures for removing and installing the cylinder head cover.
Procedures for removing and inspecting the camshaft and camshaft holder.
Procedures for removing, disassembling, and inspecting the cylinder head.
General service information for cylinder and piston.
Specifications for cylinder, piston, and piston rings.
Troubleshooting common cylinder and piston issues.
Procedures for removing and disassembling the cylinder and piston.
Inspecting piston rings, piston pins, and piston walls.
Inspecting the cylinder bore for wear and measuring clearances.
Procedures for installing piston rings onto the piston.
Procedures for installing the piston and cylinder.
General service information for drive and driven pulleys.
Specifications for pulley components and drive belt.
Torque values for pulley and clutch components.
Special tools for pulley and clutch servicing.
Troubleshooting common drive and driven pulley issues.
Procedures for removing and installing the left crankcase cover.
Procedures for removing, inspecting, and assembling pulleys.
General service information and specifications for the transmission system.
Torque values for transmission components.
Troubleshooting common transmission system issues.
Procedures for removing and disassembling the transmission case cover (MXU 250).
Procedures for removing and inspecting the transmission (MXU 250).
Procedures for removing and inspecting the speedometer gear.
Procedures for removing and disassembling the transmission case cover and driven bevel gear (MXU 300).
Procedures for removing and inspecting the transmission (MXU 300).
Adjusting and inspecting secondary gear shims for backlash (MXU 300).
General service information for crankcase, crankshaft, and balance shaft.
Troubleshooting common crankcase, crankshaft, and balance shaft issues.
Procedures for removing crankcase, crankshaft, and balance shaft.
Inspecting crankshaft for wear, runout, and bearing play.
Procedures for installing the balance shaft and crankshaft into the crankcase.
General service information for the cooling system.
Special tool for mechanical seal driver.
Torque values for water pump components.
Troubleshooting common cooling system issues.
Testing the cooling system, including radiator cap.
Procedures for inspecting, removing, and installing the radiator.
Procedures for replacing coolant and bleeding the system.
Procedures for inspecting, removing, and replacing the water pump.
Procedures for removing, inspecting, and installing the thermosensor.
Procedures for removing, inspecting, and installing the thermostat.
General service information and specifications for the brake system.
Troubleshooting common brake system issues.
Procedures for front hydraulic brake pad removal.
Procedures for changing front brake fluid and bleeding the system.
Procedures for disassembling and assembling the brake master cylinder.
Procedures for removing, disassembling, and assembling the front brake caliper.
Procedures for replacing rear brake pads.
Procedures for disassembling and assembling the rear brake master cylinder.
Procedures for removing, disassembling, and assembling the rear brake caliper.
General service information and specifications for the front wheel, suspension, and steering system.
Torque values for front wheel, suspension, and steering components.
Special tools for front suspension and steering servicing.
Troubleshooting common front wheel, suspension, and steering issues.
Procedures for removing, inspecting, and installing the front wheel.
Procedures for removing, disassembling, and assembling the front wheel hub.
Procedures for removing, inspecting, and installing the front suspension components.
Procedures for removing, inspecting, and adjusting tie-rods.
Procedures for removing, inspecting, and installing the handlebar.
Procedures for removing, inspecting, and installing the steering column.
General service information and specifications for the rear wheel, axle, suspension, and driving mechanism.
Torque values for rear wheel, axle, suspension, and driving components.
Special tools for rear axle and nut servicing.
Troubleshooting common rear wheel, axle, suspension, and driving mechanism issues.
Procedures for removing, inspecting, and installing the rear wheel and hub.
Procedures for removing, inspecting, and installing the rear axle and hub (MXU 250).
Procedures for removing, inspecting, and installing the rear shock absorber.
Procedures for removing, inspecting, and installing the swingarm (MXU 250).
Procedures for removing and inspecting the rear driving mechanism (MXU 300).
Adjusting final drive shims and disassembling the final gear case (MXU 300).
Procedures for assembling the final gear case (MXU 300).
Procedures for inspecting and replacing swingarm bearings (MXU 300).
Procedures for installing the rear driving mechanism (MXU 300).
General service information and specifications for the battery and charging system.
Torque value for flywheel nut and special tools for flywheel service.
Troubleshooting common battery and charging system issues.
Procedures for removing, installing, and testing the battery.
Inspecting the charging system for current leakage and voltage.
Inspecting the regulator/rectifier and A.C. generator for proper function.
General service information for the ignition system.
Specifications for spark plug, ignition coil, and pulser coil.
Commercially available electric tester specifications.
Troubleshooting ignition system faults.
Inspecting the ignition unit and change gear control.
Inspecting the ignition coil for continuity and resistance.
Inspecting the pulser coil for resistance.
General service information for the starting system.
Troubleshooting common starting system issues.
Procedures for removing, disassembling, and inspecting the starter motor.
Procedures for inspecting the starter relay and its voltage.
Procedures for removing and inspecting the starter clutch components.
Procedures for replacing the recoil starter rope.
General service information for lights and switches.
Procedures for removing and replacing headlight, tail/brake, and signal light bulbs.
Procedures for removing and installing the horn.
Procedures for inspecting and replacing the ignition switch.
Procedures for inspecting handlebar switches.
Procedures for inspecting and replacing neutral and reverse switches.
