Suzuki QuadSport LT-Z90 2018 Owner's Manual
![Suzuki QuadSport LT-Z90 2018 ATV manual cover](/images/cbvZJNxxoMaQEmQytBqsmDND/thumbs/thumb175x175.webp)
Routine maintenance includes checking the oil level, inspecting the air filter, tightening bolts and nuts, and checking tire pressure. Refer to the owner's manual for detailed instructions and intervals.
It is recommended to use a high-quality 10W-40 four-stroke engine oil that meets or exceeds API SG, SH, SJ, SL, or SM specifications.
Check the battery connections, fuel level, and ensure the choke is used properly during cold starts. If the problem persists, inspect the spark plug and fuel system.
The recommended tire pressure is 4.0 psi for both the front and rear tires. Ensure you use a low-pressure gauge for accuracy.
To adjust the throttle, locate the throttle cable adjuster near the handlebar and turn it to achieve the desired tension. Ensure the throttle operates smoothly.
Stop the engine immediately and let it cool down. Check the coolant level and ensure there are no obstructions blocking the radiator. Seek professional help if overheating persists.
Remove the air filter cover and take out the air filter. Wash it with a mild soap solution, rinse thoroughly, and let it dry completely before reinstalling.
During the first 10 hours, avoid full-throttle starts and vary engine speed. Gradually increase riding time and speed to allow proper engine break-in.
Regular maintenance is key. Additionally, consider upgrading the exhaust, air filter, or tuning the carburetor for performance enhancements.
Common issues include blown fuses, loose connections, and a weak battery. Inspect wiring, replace faulty fuses, and ensure battery terminals are clean and secure.