5.0 mercsr carb/fuel line problems

quizkidds

Recruit
Joined
Apr 30, 2006
Messages
3
my buddy has the 350 hp i/o for his 98-99 crownline. he has been priming the line at the start of the day 7-8 pumps. it had been starting the day fine, but after dropping anchor for a few hours upon restart it dies out while idleing after 5-6 seconds. Now you can't start it at all unless the throttle is half open at 1500 rpms so you can't put it in neutral to get to F or R. all he rain in the northeast lately has been hard on his bad covers and maybe thats a problem. I don't know how long its been since hes had work done on the carb or had fuel filters changed. what should I do to start my troubleshooting?
 

bigbrownbuku

Master Chief Petty Officer
Joined
Sep 17, 2004
Messages
885
Re: 5.0 mercsr carb/fuel line problems

check your gas cap. is the seal ok? if not add a whole pile of rain and you are getting close to your problem.
 

Silver/Fish

Petty Officer 2nd Class
Joined
Feb 7, 2006
Messages
103
Re: 5.0 mercsr carb/fuel line problems

Then replace the fuel filter...Inexpensive fix...I had the same problem last summer.(Old filter.)
 

bamadave

Petty Officer 1st Class
Joined
Mar 24, 2005
Messages
391
Re: 5.0 mercsr carb/fuel line problems

How long since a full tune-up, which includes changing all filters. But, if it were me, I'd suspect dirty carb.
 
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