I just purchased a Hurricane deck boat with a murc. 1996 90 horse outboard. I took it out on a test run before buying it and it started and ran great. Only about a 10 min. ride. After buying it I took it out with the family to do some tubing and it had been sitting for 4 days. It started up instantly with no choke and one turn of the key. we headed towards the bay and ran it pretty hard for 15 to 29 min. then I brought it down to an idle to put a kid in the tub and it shut off after idleing for about 30 seconds. It never started agian. I had to get towed back in. It seems to be getting fuel, not sure about spark. (never seen a spark plug like that) Any help would be great.