Getting a motorcycle running again after it has been in storage for such a long time requires several checks and maintenance tasks. Here are some essential steps to take:
Fuel system: a. Drain the old fuel: Remove any remaining fuel from the tank and carburetor. Old fuel can become stale and lead to clogging.
b. Clean or replace the fuel filter: Inspect the fuel filter and clean or replace it if necessary.
c. Carburetor cleaning: Disassemble the carburetor and clean the jets, passages, and float bowl. Use carburetor cleaner and compressed air to remove any varnish or debris.
Engine: a. Oil change: Drain the old oil and replace it with fresh oil. Also, replace the oil filter if applicable.
b. Spark plugs: Remove the old spark plugs and replace them with new ones.
c. Check compression: Perform a compression test to assess the engine's condition. Low compression may indicate internal issues that require further inspection.
Battery and electrical system: a. Battery check: Inspect the battery for damage and corrosion. If the battery is dead or damaged, replace it with a new one.
b. Electrical connections: Clean and inspect all electrical connections for corrosion. Ensure they are properly connected.
c. Wiring inspection: Check the wiring harness for any signs of damage, fraying, or rodent infestation. Repair or replace damaged wiring as needed.
Fluids and lubrication: a. Coolant: Check the coolant level and condition. Replace if necessary.
b. Brake fluid: Inspect the brake fluid level and condition. Flush and replace the fluid if it appears contaminated.
c. Lubrication: Grease or lubricate all moving parts such as cables, throttle, clutch, and pivot points.
Tires and brakes: a. Tire inspection: Check the tires for cracks, dry rot, or flat spots. Replace them if they are damaged or excessively worn.
b. Brake inspection: Inspect the brake pads, rotors, and calipers. Replace or repair any worn or damaged components.
Miscellaneous checks: a. Air filter: Inspect the air filter and clean or replace it if necessary.
b. Suspension: Check the suspension components for leaks, wear, or damage.
c. Chain and sprockets: Inspect the chain and sprockets for wear and proper tension. Lubricate the chain if needed.
After completing these checks and maintenance tasks, attempt to start the motorcycle. It may take a few tries for the fuel to circulate and the engine to start. If the motorcycle still doesn't start or you encounter any major issues during the inspection, it's advisable to consult a professional motorcycle mechanic for further diagnosis and repairs.