Michael Lyons
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- Jun 7, 2002
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I have a 1995, Nitro-160TF Rick clunn Edition with a Mercury 3 cylinder, carbed, 60 HP engine.
Since Xmas I have overhauled the carb's by removing and completely rebuilding them, removed gas tank from boat and replaced all hoses. Removed the tank hardware and cleaned and replaced what I felt needed it. Ran the equal of "gumout" three times through the tank prior to reassembling the tank.
2 weeks ago the boat was placed in the water and except for running a little rough for about 10 minutes, it straightend out and ran just fine the rest of the day. This trip was a maintenance cruise with a little fishing.
Yesterday, It was very difficult to keep running when cold. It would start up after choking it, then sounded like it starved out. I had pumped up the bulb prior to launch. It took a couple minutes of slowly advancing the throttle to keep it running. After a few minutes, it ran fine, WOT ran at top speed without a problem, slowed down, trolled with the engine for a little while, NO problem. Used the trolling moter and then tried to run the big motor, same as when first placed in the water, ran rough, "coughed" a couple times, warmed up then ran fine. I did adjust the carbs idle mixture as explained in the Mercury manual after it warmed up prior to the first test this year.
I am slightly confused on what to look for>
I plan on attempting re-adjusting the carbs at idle again. did like the manual says the first time..
Has anyone else had a similar type engine act this way?? And what do you do to fix it??
Thanks for any help or advice,
Michael
Since Xmas I have overhauled the carb's by removing and completely rebuilding them, removed gas tank from boat and replaced all hoses. Removed the tank hardware and cleaned and replaced what I felt needed it. Ran the equal of "gumout" three times through the tank prior to reassembling the tank.
2 weeks ago the boat was placed in the water and except for running a little rough for about 10 minutes, it straightend out and ran just fine the rest of the day. This trip was a maintenance cruise with a little fishing.
Yesterday, It was very difficult to keep running when cold. It would start up after choking it, then sounded like it starved out. I had pumped up the bulb prior to launch. It took a couple minutes of slowly advancing the throttle to keep it running. After a few minutes, it ran fine, WOT ran at top speed without a problem, slowed down, trolled with the engine for a little while, NO problem. Used the trolling moter and then tried to run the big motor, same as when first placed in the water, ran rough, "coughed" a couple times, warmed up then ran fine. I did adjust the carbs idle mixture as explained in the Mercury manual after it warmed up prior to the first test this year.
I am slightly confused on what to look for>
I plan on attempting re-adjusting the carbs at idle again. did like the manual says the first time..
Has anyone else had a similar type engine act this way?? And what do you do to fix it??
Thanks for any help or advice,
Michael