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1998 Johnson 70 hp EFI idle high

Alamaa

New member
Hi!
I have a problem with a 1998 Johnson 70 hp, 4-stroke, electronic fuelinjection.
After the winterstorage it suddely revs much higher during idle, approx. 2 200 rpm.

Drops a little when the engine gets warm.

I don't have a clue how to adjust the idle on these engines. Since the problem came rather abrupt
and after storage I guess it could be a broken vacum hose, but since I don't have a manual for the engine
I need a little bit of help where to start looking for such an error.

/H
 
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