Finally got the "Sea Snot II" back in the water after a successful impeller replacement (thanks to your generous assistance).<br /><br />Today, I ran the boat, equipped w/ a '64 40HP Evinrude BIG TWIN, for about 10 minutes to see how things were. She started on the second pull, idled well and took off. I stopped and re-pull started a few times, as I was manually adjusting trim tabs, and each time it started right up.<br /><br />For the most part, it ran fine...BUT occasionally, it did something that I can best describe as a hicup when running, sort of like for a brief millisecond the motor stopped and bucked, but then kept right on going. I paid little concern, since things went ok after that (I know I didn't hit anything, and that whatever caused this hickup, has to do w/ something in the motor...but what, I don't know, and I need your help on that.).<br /><br />I acquired this motor, w/ a previously unknown history...over the past few years its made it to the pond about a half dozen times. I'm perhaps now thinking, after reading up on what's "routine standard practice" to do on a motor, that trying to save $ has only led to a longer swim back to shore.<br /><br />What I've done thus far, is replace the spark plugs, impeller, and lower unit lube...I have not replaced the plug wires, coil packs, or points/condensor.<br /><br />Is it reasonable to assume that my coil packs have finally completely failed, and that they are somewhat to blame for inconsistent and intermittent performance (like a varying few seconds of lag between when I go to full throttle, and then the boat motor finally goes full throttle 10 seconds later?).<br /><br />Currently w/ limited cash flow, reviving this thing is difficult to do on a budget, so I was trying to avoid the "replace all" approach, and hopefully not spend more than needed.<br /><br />Just looking for an idea of what I should do now...it seems bit by bit, things that die over time are going to need replacing...but I'd sure like to use the opinions of educated guessers to determine what is likely the culprit, rather than just "replace it all".<br /><br />One more day of an opportunity to try to rectify this motors problems, and then it's who knows how many weeks before I travel up to see it again.<br /><br />Thanks again, I eagerly await your suggestions.<br /><br />P.S. The spark plugs looked just fine (unfortunately, upon removal, despite having coated the threads w/ anti-seize just a month ago, they came out w/ the plug, so it's heli-coil time...). Whata bummer, when I realized there was no way to reinstall the plug (plus the non firing scenario before removing the plug), I had to jump in the pond, and tow my girlfriend, her friend, and the boat, about a 3/4 mile back to shore...just got finished w/ this hour long swim...they just seem to be getting longer and longer w/ the things that pop up w/ this motor.