Just finished replacing the grey fuel lines with black automotive lines. Figured maybe something was clogged in the gray lines that wasn't allowing fuel to get to the carb. Seems that none of the grey lines were blocked (not mad cause I had to do the job anyway) I took off the fuel filter and emptied the gas out of the bowl, then cranked the engine 5-6 times for 5-10 seconds each time. Removed the fuel filter housing and no fuel in the bowl. It seems as I am having no fuel pressure to suck the fuel up the baffle. Where should I start with this. By the way, took off the selector and cleaned it out with carb cleaner. Incidentally, is the fuel on when the selector knob is loose or tight? It doesn't seem to line up very well with the icons and as I turn the knob it goes from tight to loose to tight to loose...you know what I mean? thanks
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no fuel pressure
- Thread starter seadooer
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Not quite....?
No, don't know about the fuel selector switch being tight etc....
But the fuel system, if you replaced those horrible fuel lines, then you'll also have to remove the fuel pump on the MAG carb (forward carb) and clean out the small strainer. It will be blocked with debris.
If you look at the mag carb. You'll notice three lines. The line coming from the block of the engine to the middle connector is the pulse line. This is basically your fuel pump. Then, the nipple below it is the inlet, and above is the return. You'll notice 4 screws on that fuel pump housing block, where that line from the engine connects. There is 2 check valves and a strainer in there. You'll need to remove and clean this system to get it running again.:cheers:
No, don't know about the fuel selector switch being tight etc....
But the fuel system, if you replaced those horrible fuel lines, then you'll also have to remove the fuel pump on the MAG carb (forward carb) and clean out the small strainer. It will be blocked with debris.
If you look at the mag carb. You'll notice three lines. The line coming from the block of the engine to the middle connector is the pulse line. This is basically your fuel pump. Then, the nipple below it is the inlet, and above is the return. You'll notice 4 screws on that fuel pump housing block, where that line from the engine connects. There is 2 check valves and a strainer in there. You'll need to remove and clean this system to get it running again.:cheers:
does this create the suction needed from the tank? The problem is that the fuel is not being sucked from the tank...after numerous cranks, the fuel filter bowl remains empty. I took the main line (ON) off the selector and cranked it thinking that there should be some sort of vacuum created to draw the fuel from the tank...there was no suction on this line. It's not like I'm getting fuel all the way to the carbs and then the problem starts...I'm not getting fuel from the tank to the selector. thanks
what about taking the ON hose from the selector and connecting it directly to the fuel filter and bypassing the selector altogether to see if it the selector that is the problem? Should there be suction on this line when the engine is cranking? I didn't feel any when I tried it although I did check the pulse hose and it's pulsing like a champ. What I was referring to before with the selector being tight then loose is when you turn it near the no fuel icon, there is resistance but as you move toward the reserve or fuel icon, it loosens to the point of free play then more resistance as you move away from these icons. I know my problem lies with step 1...getting fuel from the tank. I appreciate the help. thanks again
Did you by chance install and in-line 1/4 inch fuel filter near the carb? If you did try sucking the fuel line off of the carb until the fuel reaches this filter. Place your thumb over the hose line and quickly install it to the carb. fuel should still be visible in the in-line filter. Try cranking after that.
not exactly following you. i did not install an inline filter...using stock arrangement. the problem i am having is getting the fuel to suck out of the tank. if you can expand on what you said, i can certainly try it. sorry for the ignorance but i am a newbie at this and still in the beginning stages of learning. thanks
Go to your local auto shop tomorrow and pick up a 1/4 inch small or large if you like fuel filter that is for a lawn mower. Install this filter about 6 inches from the carb, you will need some small clamps for this.
What the in-line fuel filter will do for you is let you SEE were the fuel is in the line. If you place your fuel switch to normal and suck away on the hose you just put the filter on, you will see if your getting fuel to the line.
If you do not get anything on normal place the fuel selector to reserve and try again. If this does not work you might need to pull the lines out of the tank and see if the tank filter is clogged up.
What the in-line fuel filter will do for you is let you SEE were the fuel is in the line. If you place your fuel switch to normal and suck away on the hose you just put the filter on, you will see if your getting fuel to the line.
If you do not get anything on normal place the fuel selector to reserve and try again. If this does not work you might need to pull the lines out of the tank and see if the tank filter is clogged up.
UPDATE:
I removed the fuel selector and disassembled the valve from it to find it all gummed up. When I put carb cleaner in the ON and RES ports, nothing was coming from the OUT port regardless of what position the valve was in. When I removed it, the valve hole was all gummed up as was the inside of the selector itself. Sprayed it with carb cleaner and when I went to put the valve back in, I felt too much resistance and when I pulled it back out, the valve hole was completely gummed again. The inside of the selector near the OUT port is FULL of crap. Put some carb cleaner in a cup and letting the selector sit in it overnight. Hopefully this is the cause of my no fuel issue. thanks guys...will let you know.
I removed the fuel selector and disassembled the valve from it to find it all gummed up. When I put carb cleaner in the ON and RES ports, nothing was coming from the OUT port regardless of what position the valve was in. When I removed it, the valve hole was all gummed up as was the inside of the selector itself. Sprayed it with carb cleaner and when I went to put the valve back in, I felt too much resistance and when I pulled it back out, the valve hole was completely gummed again. The inside of the selector near the OUT port is FULL of crap. Put some carb cleaner in a cup and letting the selector sit in it overnight. Hopefully this is the cause of my no fuel issue. thanks guys...will let you know.
How do you remove the selector? I tried yesterday in vane. Ended up not being able to do so and resorted to disconnecting all the lines and using some new fuel line hose and compressed air, I checked for any obstructions...there were none. Still, I sure would like to know how to get the sucker off. on the outside I see the knob where the rubber grommet is and underneath that is philllips head screw. Removed that but the selector valve is still solidly in place....am I missing something here?
Nate Surveyor
New Member
Mine came right up. Maybe somebody turned it a bit hard, jamming it, or some kind of soda fell in it "gluing" it down. Maybe some kind of solvent (plastic friendly) would help it come up.
N
N
Relative to your question, I too had a similar problem upon changing of the fuel lines. The culprit in my case was a poor connection of the fuel line at the selector valve. I tightened all hose clamps first to ensure they were as tight as reasonably possible without damaging the lines. I then filled the bowl with fuel and associated fuel line coming out of the bowl.
Cranked the engine...sucker started right up...high RPM at first and then immediately settled into the normal out of water RPM.
Not sure if my method was correct to assist in priming the system but it worked none the less.
Cranked the engine...sucker started right up...high RPM at first and then immediately settled into the normal out of water RPM.
Not sure if my method was correct to assist in priming the system but it worked none the less.
is that rubber seal inside the selector needed? I suspect that since the ski was sitting for a year, the gas in the selector ate away at that rubber seal. I removed it and am hoping that it still operates properly with that seal inside or will it just feed gas regardless of the position the knob is in....in other words, when i turn the knob to no gas, gas will still come through. thanks
Nate Surveyor
New Member
Bart
It "Came right up" as in:
I removed the yellow rubber plug
Removed the phillips screw.
And, Pulled the selector knob up with my finger tips. So, I'd say yours has somehow become bonded, stuck or otherwise fastened down. The knob should come up.
Nate
It "Came right up" as in:
I removed the yellow rubber plug
Removed the phillips screw.
And, Pulled the selector knob up with my finger tips. So, I'd say yours has somehow become bonded, stuck or otherwise fastened down. The knob should come up.
Nate
I'm guessing his is jammed too, I stripped the inside of my knob trying to take it off the other day to replace all the lines and clean the selector. Even grabbing it with vice grips through a rag wouldnt allow it to pull off so I thought maybe it to screwed on and turned the knob and it stripped the inside piece.
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