Yamaha YFZ45YSXG, YFZ45YSSG YFZ 450R 2016 Owner's Manual

The recommended oil type for the Yamaha YFZ 450R 2016 is Yamalube 10W-40 Performance All Purpose 4-Stroke oil.
It is recommended to change the oil every 20 hours of operation or every 6 months, whichever comes first.
To adjust the chain tension, ensure the ATV is on a level surface, loosen the axle nut, adjust the chain adjusters evenly on both sides, and retighten the axle nut to the specified torque.
If your YFZ 450R won't start, check the battery charge, ensure the fuel is fresh, check the spark plug for fouling, and verify that the kill switch is in the correct position.
To maintain the air filter, remove it from the ATV, clean it using a non-flammable solvent, allow it to dry completely, and then apply air filter oil before reinstalling.
The recommended tire pressure for the Yamaha YFZ 450R is 4 psi for the front tires and 4.5 psi for the rear tires.
To improve suspension setup, adjust the preload, rebound, and compression settings according to your riding style and terrain. Refer to the owner's manual for specific adjustment procedures.
Common signs of a worn-out clutch include slipping under load, difficulty in changing gears, and a spongy or inconsistent clutch lever feel.
To check and maintain the coolant level, ensure the ATV is on a level surface, check the coolant reservoir level when the engine is cold, and add a 50/50 mix of antifreeze and distilled water if needed.
If the brakes feel spongy, check for air in the brake lines and bleed the brakes if necessary. Also, inspect the brake pads for wear and replace them if needed.