4.3 will not run

[Jeff Bowman]

I have a 2007 4.3 in a 180 Crownline. Fuel filter has been replaced, water separator replaced. Boat ran fine last time I had it out for a couple hours. At one point I came to a stop and engine died, would not try to start with starting fluid . Got it home and it started and ran for a few seconds, then wouldn’t start again. Let it set for a day or two and it started again and ran for just a few seconds. Now nothing.. any suggestions? Thanks

 

[Bondo]

Ayuh,..... Welcome Aboard,....Is the carb gettin' gas,..??

Are the spark plugs gettin' spark,..??

 

[dubs283]

There is a thunderbolt troubleshooting guide in the stickies top of forum page. I'm guessing based on vintage posted this is the ignition system you have. If your engine isn't carburetor (is efi) then you may have a different ignition system. A serial number and pics help determine your best next step.

As bondo says, check for fuel delivery and good, clean spark

 

[alldodge]

Being a 2007 it might MPI but could be TBI, but need motor serial number?

MPI/TBI - running for a few seconds, I'm thinking fuel pump
Carb - ignition

 

[Lou C]

Yep you need to do some troubleshooting to figure out WHY it doesn’t start. Spark & fuel…auto shop 101…

 

[alldodge]

Your getting to much fuel, and the second pumper is just adding more. The 4150/4160 come in a variety of configurations (single, double, E choke, etc) and good thing is they are easily changed.

Do you know what jets are installed?

 

[dubs283]

Love this thread, like many others it's motor/carb guys asking questions, speculating and getting along based on a single (and only) post from OP

 

[Bondo]

Love this thread, like many others it's motor/carb guys asking questions, speculating and getting along based on a single (and only) post from OP

Ayuh,.... I Think, AD's post #6 is in response to ericcarr's thread,.....

 

[alldodge]

Ayuh,.... I Think, AD's post #6 is in response to ericcarr's thread,.....

woops your right, tx

 

[dubs283]

Ayuh,.... I Think, AD's post #6 is in response to ericcarr's thread,.....

How does THAT happen?