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Posts: 315
| buddy of mine has an 02 mercury 90hp carb'd 4 stroke and its having a few problems we are both trying to figure out.
recently the motor has had the carbs rebuilt, spark plugs changed, impeller replaced, and the primer ball replaced. here is whats going on (hopefully i can describe it ok) now this isnt happening all the time, it is just happening at random sometimes. the motor will start up just fine and idle fine. you put it into gear and start going at slow speed and everything is ok. when you start to give it gas itll start to bog down and not go above about 2k rpms. itll putt and chug like its misfiring, but when you bring it back down to an idle its just fine. you then could shut it off and 5 min later start it up and itll run just fine all the way up to WOT.
Now recently a rock was hit while idling through some narrows, it did chip up the prop alittle bit. we were wondering is there some kind of balancer in the lower unit of the motor? kind of like a harmonic balancer on a car engine? and maybe that just got knocked out of wack? also recently there has been a warning siren coming on. we were told by a marina that a wire might be grounding out on something to cause the siren. you can reach up under the counsel and move a group of wires and itll stop, but the same marina had said that these warning sirens are caused by either bad impeller or oil problems.
any guesses? any info at all is greatly appreciated. we are headed to my dads in madison soon and would like this problem fixed. like i said any info is greatly appreciated.
thanks a lot, Brian | |
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