On a 2002 Yamaha Big Bear, the fuel and air mixture screw is typically set at around 2 to 2.5 turns out from the fully seated position. However, this can vary based on altitude and specific tuning needs. It's important to consult the owner's manual or a service manual for precise adjustments tailored to your specific conditions. Always ensure the engine is running smoothly after making any adjustments.
I have the screw on the rear of the throttle practically all the way out -- but not totally removed -- on my 2002 Big Bear 400 and it routinely maxes out at around 42 MPH.
adjest clutch
it is a 2002. I found this using the source link.
When checking the oil on a Yamaha 400 Big Bear, you should not screw the dipstick in. Instead, remove the dipstick, wipe it clean, then reinsert it without screwing it down to get an accurate reading. After removing it again, check the oil level against the markings on the dipstick. Make sure the vehicle is on level ground for the most accurate measurement.
87 Yamaha big bear troubleshooting electrical no fire what are some solutions?
The 2002 Yamaha Big Bear typically requires 10W-40 engine oil for its four-stroke engine. It's important to use oil that meets the API (American Petroleum Institute) service classification of SF or higher. Always check the owner's manual for specific recommendations and maintenance guidelines to ensure optimal performance.
The oil capacity for the Yamaha Big Bear 400 is 3.2 quarts. It is recommended you use 10w30 oil in the Big Bear.
22.9 HP
Time for a rebuild
What is the spark plug gap setting for a 1987 yamaha big bear
YFM 350SE Big Bear 4x49725x8x1225x10x12
What year is my big bear 5y4aho6y53ao43832