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Old 04 June 2014, 11:11   #1
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Join Date: Aug 2012
Posts: 86
Throttle on evinrude etc


Took RIB out for first time in 3 weeks other day and the throttle was acting odd. If kept at any speed for a length of time and then putting it into neutral the engine would start to rev quite loudly, and then if you put it back into gear there would be a large clunk and boat would jolt forward. It wouldnt do this if you change speed only if it stayed at a certain speed for at least 5 minutes. When it was over revving the prop would not be rotating
Any ideas!?

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Old 04 June 2014, 11:22   #2
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Country: UK - England
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Sounds like the throttle cable is sticking, remove the cowl & watch the throttle mechanism as you move in & out of gear. With the engine off, disengage the gear shift & go to the WOT position, pull back to tickover & see if the throttle returns back at the engine end, sounds a bit complicated, but it ain't.

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Old 04 June 2014, 11:24   #3
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Brilliant thanks. Will try that!

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Old 04 June 2014, 14:37   #4
Country: Germany
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Check this out as well :

Sticking Throttle Problem solved - Improved Throttle Lever Assembly #5005187 - Owners Message Board
ETEC - each stroke is a power stroke
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Old 05 June 2014, 07:35   #5
Country: UK - Scotland
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To put a bit of background to what you esperienced-

The "clunk" you get whren engaging gear with the "loud revs" is because the engine is idling too fast. There is no clutch (in the car sense) on an outboard, so when you engage at high(er) rpm, the teeth bang together a lot harder than normal (hence the noise) and the prop is suddenly shot from zero to spinning at trghe sort of speed you might get if you opened the throttle slightly, which of course pushes the boat forwards with more gusto than a "standard" idle...
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