1972 Johnson 4hp Outboard Water Pump Test
Testing a 1972 4hp Johnson engine to find out if the water pump is working to cool the engine. Outboard engines are cold by water sucked up from the river and pushed through the engine in order to cool the head and keep the engine running correctly.
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Testing an outboard water pump
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1972 JOHNSON 4HP OUTBOARD CARBURETOR SETTINGS - PART 1 HIGH SPEED ADJUSTMENT
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