I recently bought a jon boat with this motor and it ran great for a month and then i ended up having a problem with every part of the fuel system and then after i got that squared away I had weak spark and me and electricity don't mix and i got tired of throwing money at this motor so I took it to a local marine. They had the boat for 3 weeks and $281 later they replaced the power pack and it started up and idled perfectly. The following saturday I took it to the waterway to go fishing and it idled just fine but anything more than it surged like crazy and at wot it was like i had the throttle barely cracked open. When i got it home I started to mess with it and couldnt even get it running and the spark was weak again. Back to square one. I know i should take it back to the marine but their customer service and slow service times make me cringe at bringing it back. Plus the fact money is tight and i can get the parts way cheaper than they charge me. Should i take it back or spend a little over 100 on a new power pack, coil pack, and wires from marineengine.com and see what happens from there?