you have to take the very top end of the motor off it is easy takes like 30min
the oile filter s on the right hand side where the oil cooler hoses come in into the engine
The Yamaha Bear Tracker takes 1.6 quarts of oil at each oil change and a K&N filter is recommended by Yamaha. The Bear Tracker takes 10w-30 or 10w-40 weight oil depending on the age, size, and weather conditions where the vehicle is kept.
.003" intake and .005" exhaust is a good bet, and within .002" of 95% of all the yamaha's
According to K&N's web site, this vehicle uses an ADKN142 K&N filter.
It is a washable wire mesh oil filter located behind the drain plug ...when the drain plug is removed it will voluntarily come out via a spring ...
Next to foot brake lever there is a 3 allen head bolts remove those oil filter inside
87 Yamaha big bear troubleshooting electrical no fire what are some solutions?
The oil capacity for the Yamaha Big Bear 400 is 3.2 quarts. It is recommended you use 10w30 oil in the Big Bear.
Time for a rebuild
22.9 HP
What is the spark plug gap setting for a 1987 yamaha big bear
YFM 350SE Big Bear 4x49725x8x1225x10x12