Mark Schallip
New Member
- Mar 1, 2018
- 13
- Boat Info
- 240 Sundancer 1999. Tow vehicle Ford f150
- Engines
- 305 fuel injected Mercruiser w/ Alpha 1 outdrive
I have a 240 Sundancer 1999 with a 5.0 efi. with a Mercruiser Alpha 1 outdrive. The problem is backfiring. Not all the time but every so often. The more people you have in the boat the worse it is. I have replaced disc cap, rotor, spark plugs, spark plug wires, pick up in dust, fuel filter, fuel pump and heads. still does it. This is getting expensive and is frustrating. Does anyone have any suggestions?