I have an 05 250 ETEC and when I come off plane and come out of the hot foot completely and the engine rpms drop rapidly I notice the engine jerks at different intervals until it returns back to an idle. The engine doesn't do it on acceleration or running at top end. I spoke to a mech at my 3yr service interval and the only thing he could think was a rev limiter was kicking in when I come completely out it. Does anyone else experience this or have any idea what may be causing it?
Mine does the same thing. Always has. I have found that it is only relater to the gearcase. I have found that if you pull back to neutral as you lift off the gas it will not do it. I think it has someting to do with back pressure. I have also found that if I start trimming down as soon as I lift on the gas that will help also.
If you use the neutral trick make sure you do it in a safe spot. Going to neutral at high speed can be dangerous.
Good luck.
GaryL, I notice the same thing if I start to trim down as I come out of the throttle but if I trim and come clean off it will jerk.
You should really ease out of the throttle and trim down simultaneously, and allow your motor to idle some and cool off before switching off.
Any time you dump the throttle, the engine is going to idle rpms and the water is still rushing by the l/u at whatever speed ya running, naturally it's trying to lift your engine......consensus says, at least to me, .....it's normal. As stated above, it's best to throttle down slower and trim down and let the engine idle a few seconds before shutdown.....JMHO
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by OkieBoatMech »</TD></TR><TR><TD CLASS="quote">IM sent Marty.</TD></TR></TABLE>
Aw com'on Jay, share.....I need to know how far off base I wuz.....
Marty your need to try and duplicate the problem @ the lake with the lap top hooked up.
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