Oil and Maintenance Guide for 1989 Yamaha Big Bear 350
Engine Oil and Service
For the 1989 Yamaha Big Bear 350, the engine-oil details are a useful starting point before beginning an oil change. For engine-oil service, 10W-40 is among the oil grades identified for this model. The oil application is 4-stroke, which is worth checking when selecting an oil made for powersports engines.
The available engine-oil capacity figure is 2.54 quarts. Follow the service procedure and check the final level rather than relying on the quantity alone. Among the synthetic oil choices returned for this application are 10W-40 Synthetic ATV/UTV Engine Oil, Formula 4-Stroke Power Sports Synthetic Motor Oil.
How much oil does a 1989 Yamaha Big Bear 350 take?
The available engine-oil capacity figure is 2.54 quarts. The amount added during a routine drain may differ from the listed capacity; use the correct level-check procedure when refilling.

