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idles too high - NEED HELP!

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Mikka8701

Contributing Member
My 1966 Evinrude idles way to high. I've tried to adjust the idle screw all the way down but it still seems to idle at 3-4000 rpm which i checked out by the automotive gauge that I have attached. Is there any way to reduce the idle as I have read in other forums that it should idle around the 1000rpm mark.
 
Mikka8701 said:
My 1966 Evinrude idles way to high. I've tried to adjust the idle screw all the way down but it still seems to idle at 3-4000 rpm which i checked out by the automotive gauge that I have attached. Is there any way to reduce the idle as I have read in other forums that it should idle around the 1000rpm mark.
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I'd start with disconnecting the throttle cable and make sure the throttle is returning fully to the stopped/idle position
I'd also take a look in the carbs and check the plates are fully closed
If the plates are closed, I'd grab a manual and go through setting the base throttle and timing settings to make sure levers and stops are in the proper location.

If a throttle/timing stop lock nut moved, that can keep the timing from coming back down to the correct position, thereby giving you a very high idle.
 
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