Yamaha YFM400FWAM C Kodiak Ultramatic 2000 Owners Manual
![Yamaha YFM400FWAM C Kodiak Ultramatic 2000 manual cover](/images/04fb83d26182c3f4e25045b6/thumbs/thumb175x175.webp)
The recommended engine oil for the Yamaha YFM400FWAM C Kodiak Ultramatic 2000 is Yamalube 4, 10W-40, which is specifically formulated for Yamaha ATVs.
It is recommended to change the engine oil every 20 hours of operation or at least once a year, whichever comes first.
To adjust the idle speed, locate the idle adjustment screw on the carburetor. Turn the screw clockwise to increase the idle speed or counterclockwise to decrease it. The recommended idle speed is 1,450-1,550 RPM.
Start by checking the battery connections and ensuring the battery is fully charged. Inspect the spark plug for wear or fouling, and verify that fuel is reaching the carburetor.
Regular maintenance includes checking and replacing the engine oil, inspecting the air filter, checking the brakes, and ensuring all nuts and bolts are tight. Additionally, inspect the drive belt and CVT system.
Remove the seat to access the air filter housing. Open the housing, take out the old air filter, and replace it with a new one. Ensure the filter is seated properly before reassembling the housing.
Check the coolant level and ensure the radiator is not clogged or obstructed. Inspect the thermostat and cooling fan to ensure they are functioning properly.
Periodically inspect the drive belt for signs of wear, cracks, or fraying. Replace the belt if any damage is found. To maintain the belt, ensure the clutches are clean, and avoid excessive heat exposure.
Use unleaded gasoline with a minimum octane rating of 87. Avoid ethanol blends with more than 10% ethanol content to prevent engine issues.
Clean the ATV thoroughly and ensure it is dry. Stabilize the fuel and run the engine for a few minutes to circulate the stabilizer. Disconnect the battery and store it in a cool, dry place. Cover the ATV and store it in a sheltered area.