Gas blockage

[bigguy]

I know this is a dumb question but here goes. I have a fuel blockage in my aspy. I took off the hose running to the fuel pump and it is clear. When I took off the line from the gas tank, no fuel came out. Is this gravity fed, or does the pump pick it up, thanks.

[biguns]

If it is like the 1100 it is gravity, the pump is used to assist it going through the carbs manifold and to each carburetor. I would think the 1200 works the same. The tank has small tubes(main inside that carry the fuel to the valve, they can clog if the bike sat many years, also the screens can come off leaving the tube vulnerable to clogging.
Look inside the tank with a flashlight and see what you find., you can also blow it back through the valve with some air, not too much , just enough to clear it because the screen can also be blown off if you apply too much air.

[bigguy]

I just took the petcock off the tank and not a drop came out. I would think gas should have flown out

[Bike...and Dennis]

If the gas level is lower than the petcock you are relying 100% on the pump. Period.
Now that doesn't mean that the pump is failing as you may have a plugged line or filter.
Also, the tube (inside the tank) going up to the petcock may be blocked.

[bigguy]

Could I hook up a temporary gas tank and would the bike run off that just to see if it is running ok

[biguns]

I just took the petcock off the tank and not a drop came out. I would think gas should have flown out

Take a piece of fuel line and fit it to the output of the petcock and blow through it with it on and on reserve, passes air then put it back on and try and blow through the same tube and see if it passes air into the tank.

[biguns]

Could I hook up a temporary gas tank and would the bike run off that just to see if it is running ok

Yes but be careful , be very careful...I watched a guy burn his gl1100 down doing just that, cant find the vid but it is out there.

[WingAdmin]

The fuel WILL flow from gravity if the tank is full, and the fuel level is above the petcock. Below that, it relies on the fuel pump.

And yes, you can hook up a temporary tank on a pole to test it, just be careful of leaks and sparks. Gas fumes are incredibly flammable and explosive!

[Bike...and Dennis]

No "RESERVE" on a 12.

What exactly are you dealing with?

The motor not getting fuel?

The pump not getting fuel?

Knowing what you are trying to fix will help others help you.

[bigguy]

I confirmed that the line from the tank to the pump is clear. When I try to start the bike, the pump will not pump fuel.. When I let the starter button go, I hear a click and only a drop of fuel comes out. Sounds like my pump is on break lol

[biguns]

I confirmed that the line from the tank to the pump is clear. When I try to start the bike, the pump will not pump fuel.. When I let the starter button go, I hear a click and only a drop of fuel comes out. Sounds like my pump is on break lol

I seen this video, not sure if it pertains to your problem


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[Bike...and Dennis]

Okay, that video is disturbing. The guy is not much of a backyard mechanic. He's not even a decent out house mechanic.

Bigguy, if you are sure the fuel is getting to the pump, first, check your fuel flow from the pump, then if no flow, check to see if your fuel pump relay is working. If the relay is working, then the pump.

Have you got a manual? All this should be explained in it.

[bigguy]

Thanks, pretty sure it's the pump. I ordered one on Amazon and hoping it's the problem. Pretty sure it's not the relay because the pump clicks when engaged but only spews out a little fuel. I can only hope that's the problem, if not switch to plan B lol

[Bike...and Dennis]

You know it's only supposed to pump when the bike is running, right? That's what the relay is for, to let the pump know fuel is needed.
If you put an aftermarket pump on the bike you're just asking for more problems.

Do a real fuel pump test, as described in the manual.

[WingAdmin]

Throwing just "a pump from Amazon" is not generally going to work great.

The pump has to flow the correct amount of fuel, at the correct pressure. Too much pressure, it will push past the float needle valves and overfill your float bowls, either spilling raw fuel on your hot engine or making the engine run extremely rich (or both). Too little pressure or flow, and you'll have fuel exhaustion under high load. If it's electric, it also has to provide that correct flow and pressure regardless of input voltage (which can vary from 10 volts to 16 volts on a four-cylinder Wing).

[bigguy]

I took the old pump off and hooked it up to a battery with plastic tubing on the pump and into a pail of water. The pump ran but did not pump. I would have to figure the pump is shot. I am grasping at straws maybe but I think I will take the back off the pump and clean the points, you never know.

[biguns]

If the pump runs then it is not picking up the fuel, I would think a clog or impeller broken, make sure the shaft is turning and not just the pump humming. If it is humming it might be those points things that guy was speaking of, I know with electric motors there are contact points for start and run not sure if they are on a small DC motor.

[Bike...and Dennis]

I'm not convinced the old one is shot, but if you insist on replacing it, at least spend the bucks for OEM. Then you know you're getting the correct flow from a pump that will last another 35+ years. And drop a few extra coin for a new relay as well.

And do the pump test correctly.

[martyfair227]

Throwing just "a pump from Amazon" is not generally going to work great.

The pump has to flow the correct amount of fuel, at the correct pressure. Too much pressure, it will push past the float needle valves and overfill your float bowls, either spilling raw fuel on your hot engine or making the engine run extremely rich (or both). Too little pressure or flow, and you'll have fuel exhaustion under high load. If it's electric, it also has to provide that correct flow and pressure regardless of input voltage (which can vary from 10 volts to 16 volts on a four-cylinder Wing).

I'm all about saving a dollar when you can, but I tend to agree with you on this topic, if you start pushing fuel past float needles, it will end up costing you more than your saving in oil changes from filling up crankcase with fuel, and having to change your oil multiple times to get it out! Or too little pressure and the bike Is not going to run right! Just my two cents on the matter!

[bigguy]

Thanks for the info guys. I will try the Amazon once at least and I might have to go with the oem. Wish me luck lol

[Bike...and Dennis]

Did you test the original pump correctly?

[bigguy]

I tested it off the bike. Hooked it up directly to battery and it would run but not pump anything

[bigguy]

I should have heeded your advice and stayed away from after market fuel pumps. I got one and it is pure junk. I was wondering ir anyone knows where I can get a used or new Honda pump. Also, does the pump have to be primed before using.

[julimike54]

Could check with Straight Wings for used, they're a breaker in Canada.

http://straightwings.com/

[Bike...and Dennis]

The pump is available new from Honda.