Yamaha TT-R90EV 2005 Owner's Manual
![Yamaha TT-R90EV 2005 manual cover](/images/f2c77b78a0d669555533a3db/thumbs/thumb175x175.webp)
Ensure the bike is in neutral, turn the fuel valve to 'on', pull the choke if the engine is cold, and kick start or use the electric starter while slightly twisting the throttle.
Use a high-quality 10W-40 or 20W-50 four-stroke motorcycle oil for optimal performance and engine protection.
Change the oil every 6 months or every 1,000 miles, whichever comes first, to ensure the engine runs smoothly.
Maintain a tire pressure of 15 psi in the front tire and 15 psi in the rear tire for optimal handling and safety.
Check the fuel level, ensure the choke is properly set for cold starts, inspect the spark plug for fouling, and verify the battery is charged.
Regular maintenance includes checking the oil level, inspecting and cleaning the air filter, adjusting the chain tension, and checking the brake system.
Loosen the axle nut, adjust the chain adjusters evenly on both sides until you have about 1-2 inches of slack, then retighten the axle nut.
Stop riding immediately to prevent damage, let the engine cool, check the coolant level, and ensure there is no debris blocking airflow to the radiator.
Consider upgrading the exhaust system, installing a high-performance air filter, and rejetting the carburetor for better airflow and fuel delivery.
Common issues include carburetor clogs, electrical problems, and chain wear. Regular cleaning, routine electrical checks, and timely chain replacements can mitigate these issues.