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Old 04 November 2015, 10:38   #1
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Country: UK - Wales
Town: Swansea
Make: HydroForce Nav Rapid
Length: under 3m
Engine: Johnson 4hp MY2000
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J4RSSM power pack/ignition module air gap

Been searching the internet and this online manual Boatinfo - 1990-2001 Evinrude Service manual trying to find the correct air gap for my Johnson 4hp (2000) power pack/ignition module but can't find it anywhere.

Do any of you guys have the answer?
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Old 04 November 2015, 10:54   #2
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Country: UK - England
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If you look at that "book" around section 4-30 it refers to either marking the unit before removal or using a makers location tool to refit correctly. Have you taken yours off?
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Old 04 November 2015, 11:13   #3
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Country: UK - Wales
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Length: under 3m
Engine: Johnson 4hp MY2000
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Thankfully I haven’t taken it off or even disturbed it but due to it not running smoothly and finding a couple of previous 'Cowboy' fixes, I thought I would get all the needed data together before going further. That manual seems to have all the air gap tolerances except for the model I have.

The section stating
Quote:
either marking the unit before removal or using a makers location tool to refit correctly
refers to the 2 & 3.5hp engines

After re-reading page 4-45, and even though it does not actually state it, I have come to the conclusion that on this model it is not adjustable, which seems a little bonkers.
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