Yamaha SR400H, SR400HC SR400 2017 Owner's Manual
![Yamaha SR400H, SR400HC SR400 2017 manual cover](/images/321004c297722a563aaa4d5c/thumbs/thumb175x175.webp)
It is recommended to change the oil every 3,000 miles or every 6 months, whichever comes first. Regular oil changes ensure optimal engine performance and longevity.
The Yamaha SR400HC is designed to run on unleaded gasoline with a minimum octane rating of 91. Using high-quality fuel can help maintain engine efficiency and performance.
First, check the battery charge and connections. If the battery is fine, inspect the spark plug for wear or fouling. Ensure the fuel is fresh and the fuel lines are not clogged.
The recommended tire pressure for the Yamaha SR400H is 29 psi for the front tire and 33 psi for the rear tire. Proper tire pressure is crucial for safe handling and tire longevity.
To adjust the chain tension, place the bike on the center stand, loosen the rear axle nut, adjust the chain tensioners evenly on both sides, and ensure there is about 20-30 mm of slack in the chain. Tighten the axle nut securely after adjustment.
Clean the motorcycle thoroughly, change the oil, fill the fuel tank and add a fuel stabilizer, remove the battery and store it in a cool, dry place, and cover the bike to protect it from dust and moisture.
Regularly inspect the brake pads for wear and replace them if less than 1 mm thick. Check the brake fluid level and top up with the recommended DOT 4 fluid if necessary. Ensure there are no leaks in the brake lines.
If the engine overheats, immediately stop the bike and let it cool down. Check the coolant level and fan operation. If persistent, consult a professional mechanic to diagnose any underlying issues.
Maintain proper tire pressure, perform regular engine tune-ups, avoid aggressive acceleration, and reduce idling time. These practices can help enhance fuel efficiency.
Regular maintenance includes oil changes, checking and adjusting the chain tension, inspecting brake pads and fluid levels, checking tire pressure, and ensuring all lights and controls are functioning properly.