SURFACE DRIVE FNR
OPERATION INSTRUCTIONS
ENGINE OIL
Fill the engine crankcase with the recommended amount and type of oil. With the engine
held perfectly level, check the oil level with the dip stick. Use a high detergent motor oil
of the same viscosity you are using in your car or truck for that time of the year. In warm
temperatures we recommend to use straight 30 weight oil. This will reduce oil
consumption.
Notice: For 23 Vanguard models it is important that the crankcase is not over filled with oil. Over
filling the crankcase will cause a decrease in vacuum at high speed, preventing the carburetor from
supplying an adequate amount of fuel to the engine. When this happens, the engine will starve for
fuel and temporarily lose performance. Ensure that the engine oil level does not exceed the full
level line on the dipstick.
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