ok so here the deal i have a 2000 sugarsand that i took to the water yesterday and at full rpm didnt wanna move even 10mph!!!! so i start checking stuff and realize the top two pistons are sparking really good and the bottom two are not. so i check the coils by switching the power from a good coil the the bad one and it works great so i put it back and was wondering what could cause this problem? any help would be good bc i have to run boat outta gas bf winter finnaly sets in.lol thanx a bunch
