68LS1CAMARO
Recruit
- Joined
- Jul 8, 2009
- Messages
- 4
I have owned this boat since 2002 , its a 98 Four Winns 170, it has a 3.0 gs in it, every year it has been winerized , when i got it out this year, i decided to put new plugs and dist cap and rotor , on it, it has the EST ignition , we replaced it , went to the lake, has a rough idle when barely kicked into gear, so i changed the plugs again , put new volvo wires on it, new coil , took it out and it still does the same thing, its still hard to start and ideles rough at a low rpm , whn throttle is applied everything clears up and runs great at high rpms , so we came back and rebuilt the carb, new everything , which was a simple job which i have done several times before on race cars ,, i tried to run it again , no difference, i changed both fuel filters, and checked the hoses and filter to the tank , the diaphram in the pump is good and the pumpis pumping fine, we did find this problem , at idle, you can pull # 1-3 plug wires off the cap and the boat almost dies , you pull # 4 off a its like it is not hitting on that cylinder at idle , you can run it up to 1500 rpms and pull it off and it cuts out and is working like the rest of the cylinders , the only thing i havent changed and bought new is the pickup coil in the distributor , module in the distributor , oil looks brand new, boat runs great at 1/4 throttle and up , just not at idle and through now wake zones, and sometines takes a minute tos start , any help is appreciated, its a simple engine , it can't be too much , just some small thing i have overlooked
) when the engine is cranked over.