Yamaha YFM125GD Grizzly 125 2013 Owner's Manual

The recommended oil type for the Yamaha YFM125GD Grizzly 125 2013 is SAE 10W-40, suitable for wet clutch systems, and should meet the JASO MA standards.
The air filter should be inspected every 20 hours of operation or monthly, and cleaned or replaced if necessary to ensure optimal performance.
The correct tire pressure for the front tires is 4.4 psi (30 kPa) and for the rear tires is 2.9 psi (20 kPa).
If the electric start fails, check the battery charge, inspect the starter relay and fuses, and ensure the connections are clean and secure.
To adjust the chain tension, loosen the rear axle nut, adjust the tensioner bolts evenly on both sides to achieve the correct slack, then retighten the axle nut.
Regular maintenance includes checking for brake pad wear, ensuring the brake fluid is at the correct level, and inspecting brake lines for any signs of damage or leaks.
To improve fuel efficiency, regularly clean the air filter, maintain proper tire pressure, and avoid aggressive acceleration.
For off-season storage, clean the ATV thoroughly, change the oil, add fuel stabilizer, disconnect the battery, and store it in a dry, covered area.
To check the coolant level, ensure the engine is cool, then remove the radiator cap and verify that the coolant is at the top of the radiator.
Common causes of engine overheating include low coolant levels, a clogged radiator, or a malfunctioning thermostat.