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2004 Johnson 4 stroke outboard motor

Asked Apr 28, 2011, 03:33 PM — 4 Answers
How do you change the spark plugs?

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Stratmando's Avatar
Stratmando Posts: 10,420, Reputation: 2515
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#2

Apr 28, 2011, 03:37 PM
Most Unscrew, and Screw back in.
Buy your Replacement set, This will determine which Plug Wrench you'll need.
If you don't feel you can remove and replace, at least you will have the parts and All Mechanics, and many people can install for you.
lawrencecharles (Apr 29, 2011 10:41 AM): my spark plug has some type of cover over the top of the spark plug, I don't have any idea how to get it off.   Source:
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lawrencecharles Posts: 3, Reputation: -1
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#3

Apr 29, 2011, 10:45 AM
The spark plug has a cover or cap over the top of the spark plug,I don't have any idea how to take it off without causing damage. Motor is a 2004 40 hp 4 stroke Johnson.
Stratmando (Apr 29, 2011 03:46 PM): Take it too the Shop, These are Special and Require a Qualified Mechanic.   Source:
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Stratmando's Avatar
Stratmando Posts: 10,420, Reputation: 2515
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#4

Apr 29, 2011, 04:03 PM
If you like this motor and are going to be working on it. I would Buy the Shop Manual, It will save Time and Money.
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lawrencecharles's Avatar
lawrencecharles Posts: 3, Reputation: -1
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#5

Apr 30, 2011, 05:31 AM
Thank you for your help. Larry
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