Yamaha YP400T Majesty 400 2005 Owner's Manual

To change the engine oil, start by warming up the engine for a few minutes. Turn off the engine and place the scooter on its center stand. Remove the oil filler cap and place a drain pan under the engine. Remove the oil drain plug and let the oil drain completely. Replace the drain plug and fill the engine with the recommended oil type and amount. Finally, replace the oil filler cap and check for leaks.

The recommended tire pressure for the Yamaha YP400T Majesty 400 is typically 29 psi for the front tire and 33 psi for the rear tire. Always refer to the owner’s manual or the tire information label on the vehicle for the most accurate specifications.

If your Majesty 400 is having starting issues, check the battery to ensure it is fully charged. Inspect the spark plug for wear or fouling and replace if necessary. Verify that the fuel is fresh and the fuel lines are not clogged. Additionally, check the starter relay and ignition system for any faults.

Use a high-quality ethylene glycol-based coolant with corrosion inhibitors designed for aluminum engines. It is important to use a pre-mixed coolant or mix it with distilled water at a 50:50 ratio. Check the owner’s manual for specific recommendations.

To adjust the headlight beam, locate the adjustment screws on the back of the headlight assembly. Park the scooter on a level surface facing a wall and ensure the headlights are on. Adjust the screws to align the headlight beam according to your preference or local regulations.

The correct spark plug gap for the 2005 Yamaha YP400T Majesty 400 is typically 0.7-0.8 mm (0.028-0.031 inches). Always refer to the owner’s manual or service manual for the exact specifications.

It is recommended to inspect the air filter every 6,000 miles and replace it as necessary. If you ride in dusty or dirty conditions, the air filter should be checked and potentially replaced more frequently.

If your Majesty 400 overheats, pull over safely and turn off the engine. Allow the scooter to cool down before checking the coolant level. Refill with coolant if necessary and inspect for leaks. If the problem persists, consult a professional mechanic to diagnose potential issues with the radiator, thermostat, or water pump.

To replace the drive belt, remove the transmission cover by unscrewing the bolts. Release tension on the belt by adjusting the tensioner, then remove the old drive belt. Install the new belt, ensuring it is seated properly on the pulleys, and re-tension the belt according to specifications. Reattach the transmission cover and secure all bolts.

Regularly inspect the brake pads for wear and replace them when necessary. Clean the calipers and rotors with a brake cleaner to remove dirt and debris. Check the brake fluid level and top off with the recommended type if needed. Bleed the brakes if you notice any sponginess in the brake lever.