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Runs rough

who_cares

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"I have 1994 crownline with 5.

"I have 1994 crownline with 5.0 volvo penta [ford]. This boat sat for about 3 years. It runs rough and would not idle very well. When you gas on it in the water, all it wants to do is backfire. I put new fuel pump,map sensor, throtle pos switch. Iam lost at this point. Can someone help???????????"
 
"hi there had the same thing o

"hi there had the same thing on my boat i got about a 1 month ago it has the aq130c in it and it turned out the air filters needed cleaning, and the contacts on the coil pack was dirty wear it had sat for so long, am new to this site may be sum thing eles but this may help!"
 
"If a boat of mine sat for 3 y

"If a boat of mine sat for 3 years and ran poorly I'd start with..
new plugs, dist cap and rotor.
dump all old fuel put fresh fuel in and add "seafoam" or your favorite cleaner."
 
"I have got one more ? That fi

"I have got one more ? That filter, going to the map sensor, is that just a regular fuel filter?"
 
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