rivercity
Active member
2005 Johnson 40hp, J40RSOC, stern drive, "Jet Outboard" brand jet drive on 20 foot aluminum river boat appears to not be getting fuel. Motor previously submerged (see below).
Symptoms: sometimes boat runs fine but sometimes motor will not run much above idle. This weekend, the motor would not push the boat fast enough to keep up w/ 9.9 hp fiberglass rental boats (how humiliating!). Adding some choke sometimes restores some power and gets us home. Always starts quickly though and idles fine.
Done so far: a few months back it did this up river, and I pulled over on a gravel bar, pulled the cover and cleaned a bunch of black crud from the screen where the fuel line enters (about 2-inches in diameter behind a cover held on w/ a thumb screw). Ran great after this for several weekends. Decided fuel lines had deteriorated causing crud. Then tanks were stolen, so installed new tanks, connectors and hose. Screen has been checked regularly and is clean.
History: this motor was bought new in 2006 and the dealer had added the jet drive and possibly the electric starter as decoding J40RSOC says pull start. It actually belongs to my girl friend. Boat, trailer and motor (and 4-feet of the floor in the house!) were submerged in 2008 during a flood of the White River in northern Arkansas. Still some mud deposits inside the cover. According to her, local outboard mechanics did a basic clean up of the motor and got it running again and she has had no problems since except needing a new starter in 2009.
I assume either mud and/or black (rubber) crud has clogged up something further inside up to and possibly including the carb(s)? The boat has always been left at the river house which is two hours from our home. No local mechanic anymore. We brought it home yesterday so we can try and solve the problem. I have owned several outboards over the years but have never been inside one. Any suggestions?
Symptoms: sometimes boat runs fine but sometimes motor will not run much above idle. This weekend, the motor would not push the boat fast enough to keep up w/ 9.9 hp fiberglass rental boats (how humiliating!). Adding some choke sometimes restores some power and gets us home. Always starts quickly though and idles fine.
Done so far: a few months back it did this up river, and I pulled over on a gravel bar, pulled the cover and cleaned a bunch of black crud from the screen where the fuel line enters (about 2-inches in diameter behind a cover held on w/ a thumb screw). Ran great after this for several weekends. Decided fuel lines had deteriorated causing crud. Then tanks were stolen, so installed new tanks, connectors and hose. Screen has been checked regularly and is clean.
History: this motor was bought new in 2006 and the dealer had added the jet drive and possibly the electric starter as decoding J40RSOC says pull start. It actually belongs to my girl friend. Boat, trailer and motor (and 4-feet of the floor in the house!) were submerged in 2008 during a flood of the White River in northern Arkansas. Still some mud deposits inside the cover. According to her, local outboard mechanics did a basic clean up of the motor and got it running again and she has had no problems since except needing a new starter in 2009.
I assume either mud and/or black (rubber) crud has clogged up something further inside up to and possibly including the carb(s)? The boat has always been left at the river house which is two hours from our home. No local mechanic anymore. We brought it home yesterday so we can try and solve the problem. I have owned several outboards over the years but have never been inside one. Any suggestions?
