I've got a 99 Merc 90 hp. If I am sitting idle and slam the throttle forward the motor stalls out. If I put it in gear and slowly increase the throttle to 2K rpm I'm able to go thru that point and run full throttle 5K-6K rpm no problem. I ran some Sea Foam thru the fuel line and it fixed the problem. Slam full throttle , off she goes. Then after about an hour of running the problem came back. I am suspicious that some of the small fuel line hoses are deteriorating and clogging jets in the carbs so I am planning to replace those original small fuel lines.
My question is, are there other O rings or plastic things on the down side of the fuel filter that also need to be replaced? I am hoping to avoid removing the carbs. It had older fuel in the 35 gallon tank so I topped it off with 30 gallons of fresh fuel thinking/hoping that was the problem but that did not help.
tks
Don
My question is, are there other O rings or plastic things on the down side of the fuel filter that also need to be replaced? I am hoping to avoid removing the carbs. It had older fuel in the 35 gallon tank so I topped it off with 30 gallons of fresh fuel thinking/hoping that was the problem but that did not help.
tks
Don