brought my boat out last weekend.  I ran great for about an hour.  Then it started sputtering pretty bad when at idle.  above about 2,000 rpms it ran fine.  The fuel filter is new and  my card is only about 1 year old.  Any other suggestions?

yea, thats what i was thinking.....screw it.  if is blows....it blows.

will definately try that...the boat sat over the winter for about 6 months.  I did drain the tanks and put fresh fuel in it though.

Thanks

can you use that "HEAT" and run it thru the motor? i has some what of the same problem and the boat sat for a yr and i put gas in it and fired it up and ran it and it did the same thing. I have a water separator in the back of the boat hooked near the fuel pump.

i wasnt sure if it was a before you fill up the tank type of stuff. im going to pick some up on my way home.

What kind of carb?  You probably have some dirt in the jets and/or the idle circuit and transition slots.  I know I have to clean that stuff out when my boat sits over the winter. 

Its an Edlebrock carb.

Check for dirt in the jets as mentioned above, if nothing else works.  If you need to rebuild, I've got a complete kit here that I was going to use on my original carb, but like everything else on this Miller, the carb had been screwed with to the point of no return.  I ought a new carb.