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1990 Johnson 88spl Idles high when warm

Bonstrosity

New member
I have The motor listed above, I took it out for the first time this season and it appears to have started to idle high when the motor is warmed up. The link and sync process was done last summer and when it is cold it will start up and be where you'd expect it to be.

After the motor is run up to speed and is put in neutral the rpms jump to 2500-3000. If I hit the fuel enrichment it'll drop back down to a normal range. This seems indicative of a vacuum leak somewhere. Has anyone experienced this or have any direction on where to start?
 
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