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Message
Fuel line issue ( primer bulb collapsing)
Posted on 5/26/14 at 7:29 pm
Posted on 5/26/14 at 7:29 pm
Gents,
While running my engine slowly loses fuel flow and dies. The bulb is collapsed. I reprime and run a bit longer (5-10 minutes at a time) before the same thing happens again.
Brand new gas tank and fuel line assembly.
I'm guessing some sort of ventilation issue, but not sure where to begin after the tank and fuel line.
Thoughts?
While running my engine slowly loses fuel flow and dies. The bulb is collapsed. I reprime and run a bit longer (5-10 minutes at a time) before the same thing happens again.
Brand new gas tank and fuel line assembly.
I'm guessing some sort of ventilation issue, but not sure where to begin after the tank and fuel line.
Thoughts?
3
Posted on 5/26/14 at 7:41 pm to prplngldtigr
definitely a ventilation problem. unscrew the gas cap and see if it works right.
is it a plastic portable tank or a permanent tank.
if portable the gas cap is bad or has a vent on top of it you unscrew
is it a plastic portable tank or a permanent tank.
if portable the gas cap is bad or has a vent on top of it you unscrew
Posted on 5/26/14 at 7:42 pm to greasemonkey
Thanks for the reply.
I tried running with the cap loose and completely off. Tank actually has a small vent built in near the fuel line connection. Thought maybe it wasn't enough , so did the cap thing.
Made no difference.
Edit: plastic tank
I tried running with the cap loose and completely off. Tank actually has a small vent built in near the fuel line connection. Thought maybe it wasn't enough , so did the cap thing.
Made no difference.
Edit: plastic tank
This post was edited on 5/26/14 at 7:46 pm
Posted on 5/26/14 at 7:53 pm to prplngldtigr
Check for inline filter on the motor, possibly it need to be clean or change. 
Posted on 5/26/14 at 7:55 pm to hogdaddy
No inline filter.
Pulled the face off of a screen type filter and it was really clean.
That's about where I stopped...hahahaha
Pulled the face off of a screen type filter and it was really clean.
That's about where I stopped...hahahaha
Posted on 5/26/14 at 8:26 pm to prplngldtigr
is there a filter on the pickup tube in the gas tank?...if so, that may be the issue...
if not, I would say that there is an air leak somewhere in the fuel system (sucking air in somewhere between the fuel tank and the motor...change the o-ring sealing the filter screen on the motor...
if not, I would say that there is an air leak somewhere in the fuel system (sucking air in somewhere between the fuel tank and the motor...change the o-ring sealing the filter screen on the motor...
Posted on 5/26/14 at 8:35 pm to Spankum
No filter on the pickup tube.
Okay, I'll look Into that.
Thanks!
Okay, I'll look Into that.
Thanks!
Posted on 5/26/14 at 9:27 pm to prplngldtigr
make sure the fuel flow of the bulb is correct
Posted on 5/26/14 at 9:36 pm to Cracker
All good there, but I could see how that may get overlooked...that whole forest for the trees thing. Appropriate for the Outdoor Board, indeed.
Posted on 5/26/14 at 9:39 pm to prplngldtigr
pull the bulb off and run it without it and see what happens
Posted on 5/26/14 at 9:42 pm to prplngldtigr
Check the Fuel pump diaphragm
Fished with one like that for months before we found the problem.
Called it our Evinrude pump-n-go
Fished with one like that for months before we found the problem.
Called it our Evinrude pump-n-go
Posted on 5/26/14 at 9:42 pm to Cracker
Okay, will try.
Thing is , this has happened with 2 other fuel lines and two other tanks.
Tried the two pronged fuel line connection and the spray free, as well.
Thing is , this has happened with 2 other fuel lines and two other tanks.
Tried the two pronged fuel line connection and the spray free, as well.
Posted on 5/26/14 at 9:43 pm to Cracker
Swap the bulb out. I've seen brand new ones fail on maiden voyage
Posted on 5/26/14 at 9:44 pm to Kajungee
Hahahahha...strangely enough, it IS an Evinrude.
I'm betting this is the problem.
I'm betting this is the problem.
Posted on 5/26/14 at 9:44 pm to prplngldtigr
Take the bulb out of the line and put the tank higher than the motor and try that. If it runs the bulb is the problem.
Posted on 5/27/14 at 9:30 am to DownshiftAndFloorIt
sounds like the bulb or the entire fuel line is on backwards.
or
Is this one of those newfangled lines with the round fuel demand valve? If so, cut that out of the line. I put a new fuel line on my boat which had one of those round fuel demand valves and it choked out my motor. I took the valve out of the line and it continues to run perfectly.
or
Is this one of those newfangled lines with the round fuel demand valve? If so, cut that out of the line. I put a new fuel line on my boat which had one of those round fuel demand valves and it choked out my motor. I took the valve out of the line and it continues to run perfectly.
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