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For a 25 horsepower Johnson outboard motor, you typically want to use the Champion QL77JC4 spark plug. It's important to check your owner's manual or the manufacturer's specifications, as there may be variations based on the specific model and year. Ensure the spark plug is gapped correctly according to the manufacturer's recommendations for optimal performance.
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What is the spark plug gap for a 1968 Johnson 6 hp outboard motor?
Johnson 6hp spark plug gap
What is the Correct spark plug gap for a 2000 Johnson 200 horse Ocean Pro 2 stroke outboard motor?
.030
What is the spark plug gap for a 1983 Johnson 15hp motor?
The required spark plug air gap for the 83 model, 15 hp Johnson is .030 in.
What is the spark plug gap for 1984 Johnson outboard motor?
1984 Johnson 6 HP
What is the spark plug gap for 1984 Johnson 70HP outboard motor?
The plug gap for a 70 Johnson would be .035 - .040.
What is the spark plug gap for a 1994 70hp Johnson outboard motor?
.030
What is the spark plug gap for a Johnson 30 HP outboard motor?
.030
What is the spark plug gap for Johnson 25 HP outboard motor?
The 25 hp Johnson outboard runs a plug gap of .030 in.
What is the spark plug gap for 1984 Johnson 90HP outboard motor?
.030 .030
What is the spark plug gap for a 2000 Johnson 4hp outboard motor?
The recommended plug gap for the 2000 model, 4 hp Johnson is .030 in.
What is the spark plug gap for a 1994 Johnson 50 HP outboard motor?
The plug gap for a 94 model, 50 hp Johnson is .030-.035 in.
What is the spark plug gap for a 1988 88 HP Johnson outboard motor?
The spark plugs on a 1988 model, 70hp Johnson outboard, should be gapped to .030in.
