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Posts: 171
Location: indiana | i was wondering if i should be trolling with my 75 horse motor. this year in canada the overheat alarm kept going off. all i had to do to stop the alarm was to raise the rpm's for awhile or make a short run to another location. that would remedy the problem for a short while only to have it happen again. the motor did not seem to be hot and had plenty of water coming out of the motor. is it not a good idea to troll with that size of motor or is there a water pump issue i should consider. any input would be graetly appreciated. |
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Posts: 216
| I have a 2001 75 merc and have never had any problems troling. |
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Posts: 1936
Location: Eau Claire, WI | Not sure if you have ever replaced the water pump impellor? ( I replace mine every season, cheap insurance, they are less than $20) Factory recomendation on most motors is every season. Even though you have water coming out of the tatle tale "squirter" you still could be low on volume needed to keep the engine temp low enough after long periods of trolling.
The fact that a short run to another locations was enough to cool it back down tells me you either have inadequate water flow or possibly a thermostat that might be sticking. Your motor may or may not have a thermostat.
Dave J. is right...trolling with these motors is fine and the only thing that might happen is you may foul your plugs more often from the low rpm's if you are running a standard carburated two stroke motor. |
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Posts: 171
Location: indiana | thanks mark. that was the suspicion i had. i will have a new impellar installed. thanks. |
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