Yamaha XC155K SMAX 2019 Owner's Manual
![Yamaha XC155K SMAX 2019 manual cover](/images/ab8086484ea60a508d3de491/thumbs/thumb175x175.webp)
To properly break in your Yamaha XC155K SMAX, avoid full-throttle starts and rapid acceleration for the first 600 miles. Gradually increase the speed and vary the engine RPM to ensure all engine components wear in evenly.
The recommended tire pressure for the Yamaha XC155K SMAX is 29 psi for the front tire and 33 psi for the rear tire. Always use a reliable tire pressure gauge to check and adjust the pressures when the tires are cold.
It is recommended to change the engine oil every 2,000 miles or 6 months, whichever comes first. Use the oil grade specified in the owner's manual to ensure optimal engine performance and longevity.
If your SMAX won't start, first check the battery connections and ensure they are clean and secure. Verify that the fuel tank is not empty and that the kill switch is in the 'ON' position. If the issue persists, inspect the spark plug and replace it if necessary.
To improve fuel efficiency, maintain proper tire pressure, avoid rapid acceleration and heavy loads, and adhere to regular maintenance schedules, including air filter cleaning and spark plug replacement.
Use a high-quality ethylene glycol antifreeze containing corrosion inhibitors designed for aluminum engines. Always mix with distilled water in a 1:1 ratio to ensure optimal cooling and protection.
To adjust the headlight aim, locate the adjustment screws behind the headlight assembly. Turn the screws clockwise to raise and counterclockwise to lower the beam. Ensure the scooter is on a level surface and the rider's weight is accounted for during adjustments.
Signs that the drive belt may need replacement include unusual noises, decreased acceleration, and visible wear or cracks on the belt. Regularly inspect the belt as part of routine maintenance and replace it every 12,000 miles or as needed.
To store your SMAX for the winter, clean the scooter thoroughly, change the oil, and fill the fuel tank with stabilized fuel. Disconnect the battery and store it in a cool, dry place, and cover the scooter with a breathable cover in a sheltered area.
To check the brake fluid level, place the scooter on a level surface and locate the brake fluid reservoir. Ensure the fluid level is between the 'MIN' and 'MAX' marks. If necessary, add the recommended brake fluid type to maintain the correct level.