Hesitation

[silenscurator]

Grandma has an older grew with a 490 model engine(i'm pretty sure). its the POS with the Interchanger tube on the side of the engine...anyways, when she idles it and then gives it gas to go, i know she hesitates, so i thought it just might be her imagination, but then it started with me, and i have no quams about givin it. What happens basically is that the boat will start to come out of the water, but then you hear a gasping noise from the engine comp. and then the boat jumps ahead again and its ready to go. what is goin on, i think it might be the float in the carb not havin enough fuel in the resevoir...<br /><br />any help would be great

 

[Don S]

Re: Hesitation

Grandma has an older grew with a 490 model engine(i'm pretty sure). its the POS with the Interchanger tube on the side of the engine

OK, That give almost zero information, but let me guess, It's a Mercruiser 470 with the heat exhcanger on the port side of the engine......am I close???<br /><br />Hesitation problem<br />Possibly carb adjustment, accelerator pump circuit not working properly, water in the fuel. Did you check the fuel filter for water?<br />How long since it had a complete tuneup. Bad points, plugs, cap, or rotor will cause the problem.<br />Along with the timing advance not working.

 

[silenscurator]

Re: Hesitation

Thanks for the reply. I'll try and get the specifics.