Outboard Overheating while trolling

[Tom Linderholm]

Went out today with the boat and my 1990 Evinrude 200XP 2 stroke started sounding th overheating buzzer after about 45 minutes of trolling at 750-850 RPMS. However after letting it sit for a bit I turned her back on and opened her up for about 5 miles with no problem. Went to set lines again and after about 10 minutes the overheat buzzer sounded again. Any of you all have some suggestions?

[Northlander]

Bring it back to the guy you got it from and have him fix it! Do it quick too! You want that thing for opener!!

[Tom Linderholm]

Thats what I was thinking today. Just trying to get an idea before I bring it out to them. I did manage to get up to the 23 bridge today then aroud and back down the other side And you doubted me Steve

[ChuckN]

I'm guessing you need a new water pump (impeller). It's not pumping enough water to reach and cool the powerhead at low RPM's. Not a major project.

[tonyjor]

Could be the oil pump also, if it has one. My friend's 60 horse fried a cylinder because his alarm didn't go off. About a grand later, it runs great.

[marine_man]

I agree with ChuckN... probably just needs to have the waterpump replaced... at low idle you're just not getting the flow of water you need to cool the engine... but at high idle / running across the lake you've got more than enough flow.

Pretty minor thing that needs to get done from time to time...

marine_man

[Fisher Dave]

Everyone has good points, and probably have the problem pegged ..

Northlander had the best solution if you just bought it.. take it back and let them fix it.. if it aquired other internal damage, or does in the future, they will be responsible.

Any reputable dealer should have no problem checking it out... they need your word of mouth for future customers.

[Tom Linderholm]

Yeah, they have guaranteed it and seem pretty reputable. I'll be dropping it off this week. Thanks for the input guys!

[Surface Tension]

Cheffrey, when we talked last night my first thought was the impeller. A quick and easy job but after realizing your motor has a warranty you would probably be better off bringing it into the dealer and letting them diagnose the problem and make the repair to protect you down the road if any other problems arise. This is the busiest time of year for boat dealers so hopefully you can get it in and out fast.