Carbs flooding on 100hp johnson

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: Carbs flooding on 100hp johnson

I take it you haven't even looked at this and are worrying yourself nuts about how much work this is.
1) Chances are the fuel line is attached at the tank with a standard hose barb and flexible fuel line just like the the other gazillion boats.
2) The fuel line then goes to another barb fitting on the inlet side of the electric pump. To remove it you unscrew and clamp.
3) The fuel line to the primer bulb is attached to the outlet side of the pump in the same manner. Unscrew the clamp and remove the line.
4) Disconnect the wires to the pump.
5) If the fuel line is long enough, connect the primer bulb end of the line to the tank and secure it. DONE! Go boating.

If metal fuel line is used anywhere in the system, they too are standard fittings (with any luck at all) unless the person that installed the pump got "really creative". If you need any of that stuff head for the plumbing dept at Lowes, Home Depot or your local Mom & Pop hardware store. Ask for help if necessary. But ask someone that is older than 18 as they likely haven't figured out what "righty tighty - lefty loosey" means yet.
 

Fishindan

Cadet
Joined
Jul 20, 2010
Messages
18
Re: Carbs flooding on 100hp johnson

Ok. Got a break on the elec. pump. It was installed in line and sitting unsecured on top of the tank.(hence the noise). Remvd the pump and reconnected lines. Installed carbs. Slowly pumped hand bulb while watching carbs. Looking good. Went to start switch and squirted in a little fuel. Hit starter and eng pops. Tried again same thing. Then started turning over with no joy. Pulled a plug to ck for flooding. PLUG IS BONE DRY! Pumped the bulb up again to a nice firm feel. Squirt in a second or 2 of fuel and BAM! she comes to life. Looked it over good and no signs of leak or flooding.
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: Carbs flooding on 100hp johnson

Success! And yet another example of how a band-aid approach to a needed (or suspected need) repair caused more issues than it fixed.
 
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