Hello everyone! I am new to this and a new owner of a boat. I have an 84 Larson citation. And it apparently has a (new engine as of 09) put in it. It is a mercruiser 3.0 140 hp 181 CID.
Here's the deal. When I went down to purchase it, it started up great and ran for awhile awesome. The boat had about 1/4 of a tank in it when purchased. Girlfriends father put in another 8 gallons. We took it out the first day for about 7 hours and did pretty good. Had a slight hesitation when accelerating around 2000 rpm's. I just thought that was something that would go away. Then we ran it the next day and just the same thing. We could cruise at WOT great and just a slight hesitation when accelerating.
Then the boat sat for about 10 days with 1/4 tank in it. Then we went out and put about 13 gallons of 87 grade in it and one bottle of heet to pull out moisture. Didn't know if that was good or bad. Then that same day we took it out and still did the stall around 2000 rpm but was cruising for about 30 seconds at WOT and just completely cut out. Started up and got to WOT and cut out again. Got back to the dock stumped.
A couple days later noticed choke was stuck open. Fixed that problem. Didn't stall out that day. Next day it did.
Then it sat for another 4-5 days. Went down and now it won't even start at all. Then had someone come out to look at it and what do you know it started. He said timing could be off but only a couple degrees.
Replaced plugs, wires, distributor cap and rotor. Hasn't started since he came out which was yesterday.
I also noticed that it backfired through the carb when i was trying to start it.
Could this simply be bad fuel? Or is it electrical situation? I need help!!! We are having friends over for memorial day and plan on taking out the boat!!!