Thread: Fuel Line

I think I know the answer to this...
Engine has been sputtering a little bit lately and it acts as if it's starving for gas, the bulb feels spongy so I assume I have a air leak somewhere. I want to replace the whole line complete with the fittings on the end, where can I buy this?

if thats the quick disconnect type i've seen the male part of the fitting at wally world. they might have the hose and all, just haven't seen it.

Originally Posted by SIMPLEMAN

if thats the quick disconnect type i've seen the male part of the fitting at wally world. they might have the hose and all, just haven't seen it.

may have to take me a ride..... God I hate wally world though....
and yes it is the quick disconnect type
Thanks

the line itself does not look as if it has cracks and the bulb has none either, do you think it is in the fittings> can they be leaking some how? looks like it has them chinese clamps on it too

chicken i think the fitting has an o-ring. i guess it could be leaking. have you checked your in-line filters and pump screen yet? i'm no boat motor mechanic but i had a similar problem and ended up being a faulty pump. i replaced evrything in the fuel system because my "Mechanic" gave up on it. nothing seemed to help until i figured i had gotten a bad "new" pump. i sure you've checked the cap vent.

Originally Posted by SIMPLEMAN

chicken i think the fitting has an o-ring. i guess it could be leaking. have you checked your in-line filters and pump screen yet? i'm no boat motor mechanic but i had a similar problem and ended up being a faulty pump. i replaced evrything in the fuel system because my "Mechanic" gave up on it. nothing seemed to help until i figured i had gotten a bad "new" pump. i sure you've checked the cap vent.

I will check the o rings.... that could easily be it Thanks

mine started sputtering a little a while back but would crank up and run fine. Only when I accelerate will it sputter, but after getting to plane and running it's fine. I too though it was a gas problem and had the carb cleaned and it still does it. I replaced the fuel line and still the same problem. I'm scratching my head now. I bought everything to replace the fuel line at wal mart, and I too hate shopping there.

alright, if you gooch on the throttle and the engine acts up, you probably have a fuel delivery problem. When you open the throttle up, you are giving the engine a ton of more air and it needs more fuel to burn with that air or it's going to fall on it's face. Most two stroke engines use a diaphragm type fuel pump that uses crankcase pressure to move a diaphragm that pumps fuel to the carburetors. If the diaphragm has a hole in it, it can't work right and also will leak extra fual into the crankcast causing it to run rich and not run right, but will normally do better when you open the throttle giving it more air to burn with the extra fuel it's getting. The fuel pump also has two check valves in it to keep fuel from getting pumped backwards, it lets fuel only in one side and only out the other side. The caraburetors work by delivering fuel by allowing the vacuum of the engine to pull fuel through them. There are different mechanisms on different carburetors to let them get more feul or less fuel when they need them. When diagnosing fuel problems, always start simple and go from there and always start at one end and work to the other, don't jump around because you will confuse yourself!! start with the simple things. Those bulbs have a check valve in them that can go bad too and your motor will not run if you hook it up backwards. And don't assume that you automatically have a fuel problem. How did you come to that conclusion? There are more things than fuel that can make a motor act up. Always check spark plugs when dealing with any two stroke issues also as they tend to foul more easily than four stroke plugs due to burning oil. My motor gets plugs every year and I clean them up and regap them about every couple months to eliminate problems before they start. I hope this helps a little bit anyway. It's always good to understand how something works, because understanding it is the first step in fixing it..

greenchicken if your going to kellog's on the 24th. I got a new hose & bulb
in the shop. I'll bring it & you can have it. Let me know. Gary

does anybody know of one of these close to high rock. I think I need my carb linkages adjusted while boat is in water. I have been talking to a marine tech in Tenn and he said a biger motor will act differently on motor muffs that it will with the backpressure in the water. he suggested I get my carb linages adjusted while the motor is in the water.