Yamaha YFM09RYXH Raptor 90 2017 Owner's Manual
![Yamaha YFM09RYXH Raptor 90 2017 manual cover](/images/c58c1c526827dec2ecbeff87/thumbs/thumb175x175.webp)
To perform an oil change, warm up the engine, turn it off, and place the ATV on a level surface. Remove the oil drain plug and let the oil drain completely. Replace the drain plug and remove the oil filler cap. Add the recommended oil type and amount, then replace the filler cap. Start the engine and check for leaks.
The recommended tire pressure for the Yamaha Raptor 90 is typically around 4 psi for the front tires and 4 psi for the rear tires. Always refer to the owner's manual for the most accurate information.
If your Yamaha Raptor 90 has starting issues, check the battery connections for corrosion or looseness, ensure the battery is charged, and inspect the spark plug for wear or damage. Additionally, make sure the fuel is fresh and the fuel valve is open.
Regular maintenance for the Yamaha Raptor 90 includes checking and changing the oil, inspecting the air filter, checking tire pressure, lubricating the chain, and inspecting brakes and cables for wear. Refer to the owner's manual for a detailed maintenance schedule.
To clean the air filter, remove the filter cover and take out the air filter. If it's a foam filter, wash it with warm soapy water, rinse, and let it dry completely. Lightly oil the filter before reinstalling. Make sure the filter is seated properly to prevent dirt from entering the engine.
If your Raptor 90 stalls frequently, check the fuel quality, clean or replace the air filter, and inspect the spark plug. Additionally, make sure the idle speed is set correctly as per the owner's manual. If the problem persists, consult a professional mechanic.
To adjust the chain tension, first, loosen the rear axle nuts. Adjust the chain tensioner on both sides of the swingarm equally until the chain has about 10-20 mm of slack. Tighten the axle nuts securely and check the tension again.
Brake squealing can be caused by worn brake pads, glazed pads or rotors, or debris caught between the pad and rotor. Inspect the brake pads for wear and replace if necessary. Clean the rotors and pads or consult a mechanic if the problem persists.
The spark plug in your Yamaha Raptor 90 should be inspected every 1,000 miles or 6 months and replaced if necessary. Replace the spark plug at least once a year to ensure optimal performance.
The Yamaha Raptor 90 requires unleaded gasoline with a minimum octane rating of 87. Avoid using ethanol blends higher than E10 to prevent potential engine damage.