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Author Topic:   Throttle Slipping on Merc 90 4 horse
mojipa posted 06-21-2004 11:54 PM ET (US)   Profile for mojipa   Send Email to mojipa  
Anyone else experiencing throttle slippage from this motor?
It backs off by itself by about 500 RPM's.


Clark Roberts posted 06-22-2004 06:56 AM ET (US)     Profile for Clark Roberts  Send Email to Clark Roberts     
Jim, there should be a friction adjustment (screwdriver type) under the bezel if you have a benicle type throttle and if you have a side mount Merc throttle box the adjustment is forward on the housing and is finger adjustable... check it out! Spruce Creek Navy
stompy27 posted 06-23-2004 06:34 PM ET (US)     Profile for stompy27  Send Email to stompy27     
The paperwork from your purchase should have included a manual titled "Mercury Mechanical Console Control" for
MCC 4501/4502 Series control. Page 10 has a diagram, explains where to find the Throttle Friction Adjustment Screw and how to adjust. You will find a nylock nut not a screw and it will not take much of an adjustment "Clockwise" to resolve your problem. I am sure this wil help. If you can't find the manual let me know so i can scan the page and send it to you.

2002 MT170

mojipa posted 06-24-2004 02:13 AM ET (US)     Profile for mojipa  Send Email to mojipa     
Thanks for the replies. I found the adjustment on the throttle. It is working much better.

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