LS Bellhammer Series, Bellhammer Seven, and Bellhammer Light can be used with 4-stroke outboard motors.
Since the outboard motors are dog clutches, it will help to alleviate the throbbing feeling of the clutch, improve the feeling, and avoid problems with tides and water. However, do not use it for clutches other than dog clutches, such as hydraulic multi-disc clutches or cone clutch mechanisms.
The recommended additive amount is 5-10% of engine oil.