Suzuki Boulevard S40 LS650B 2019 Owner's Manual
![Suzuki Boulevard S40 LS650B 2019 Motorcycle manual cover](/images/MeZJOIxkTiXTcNvMgxRoApTY/thumbs/thumb175x175.webp)
To perform an oil change, warm the engine, place a drain pan under the oil pan, remove the drain plug, and let the oil drain. Replace the oil filter, reinstall the drain plug, and refill with the recommended oil type and amount.
The recommended tire pressure is 29 psi for the front tire and 33 psi for the rear tire. Always check the pressure when the tires are cold.
Check the battery for charge and connections, ensure the kill switch is in the run position, verify fuel level, and inspect the spark plug for wear. If problems persist, consult a professional mechanic.
Follow the maintenance schedule in the owner's manual, which includes regular oil changes, tire pressure checks, brake inspections, and chain lubrication at specified intervals.
Locate the clutch cable adjuster near the lever, loosen the locknut, and turn the adjuster to set the correct free play of 10-15mm at the lever. Tighten the locknut after adjustment.
Suzuki recommends using a high-quality 10W-40 motorcycle oil that meets JASO MA or MA2 standards for optimal performance.
Remove the seat, locate the air filter housing, unscrew the cover, and replace the old filter with a new one. Ensure the new filter is seated correctly and reassemble.
If overheating occurs, shut off the engine, let it cool, and check coolant levels and the radiator for blockages. Inspect the thermostat and consult a mechanic if the problem persists.
The rear suspension can be adjusted by turning the preload adjuster to suit your weight and riding style. Refer to the owner’s manual for specific adjustment procedures.
To improve fuel efficiency, maintain proper tire pressure, use high-quality fuel, avoid rapid acceleration, and perform regular maintenance, such as air filter and spark plug replacements.