What other type of motor oilcan you use in your 1986 750 Magna?

For your 1986 750 Magna, you can use any high-quality motorcycle-specific oil that meets the required API service ratings, such as SG or higher, and is suitable for wet clutches. Alternative options include synthetic motorcycle oils or even automotive oils that specify compatibility with motorcycle engines. Always ensure the oil viscosity is appropriate, typically 10W-40 for this model. However, it's best to consult the owner's manual for specific recommendations.