Install electric solenoid fuel shutoff valve


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okie2ee
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Install electric solenoid fuel shutoff valve

Post by okie2ee »



Ever since I first purchased my GL 1500 several years ago, I've had one problem after another with the vacuum operated fuel shut off valve. I rebuilt the valve once but there appears to be a defect in the casting along the sealing edge of the diaphragm. I was stranded on the freeway last year and had to bypass the valve to get going again. I have been schooled on the dangers of not having a shut off device in the fuel line, which can cause major problems. I've been running a year with no shut off valve and finally decided to install the electric solenoid shut off valve that I purchased 6 months ago.
To start, check out the instructions for rebuilding the vacuum shut off valve for how to gain access to the valve and remove it. After removing the valve it's pretty straight forward to install the electric shut off valve. I purchased the valve on Ebay for $36, it's an

AFC-111 12VDC solenoid valve

Working pressure 0-30 PSI

2-way normally closed inline solenoid

Orifice size .156” for adequate flow of all fuels

100,000 cycle tested. Extensive test data available

Minimum draw - 12VDC when fully energized

Optional wire connecting terminals

OEM approved

Easy installation - 1/8” female pipe threads, inlet and outlet

Ambient Temperature rating -40°F to +250°F, or 170° Fluid

First, I installed two 90 degree elbows on the inlet and outlet of the valve. I then installed 3/8" hose barb fittings on each of the
elbows. I aligned the hose barb fittings so that they were almost 180 degree apart.


Vacuum shut off valve removed


Fuel valve with hose barbs attached


Fuel valve installed on existing fuel lines, I did trim fuel lines as required to fit into space


Fuel valve installed


Fuel installed


Fuel valve wired up with quick disconnect connector, valve didn't require mechanical mounting
I blocked off the vacuum line with a screw using the original tubing clamp


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Re: Install electric solenoid fuel shutoff valve

Post by Rednaxs60 »

Nice install and work around. Working well?
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okie2ee
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Re: Install electric solenoid fuel shutoff valve

Post by okie2ee »

I have just installed the valve and have not ridden it yet. So far it works fine starting and stopping when parked. I don't expect any problems.
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okie2ee
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Re: Install electric solenoid fuel shutoff valve

Post by okie2ee »

Quick update............have been riding the bike for the past week and no problems at all...........fuel flowing freely
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Re: Install electric solenoid fuel shutoff valve

Post by jbaviera »

I wonder if this would be an option on my CM400T? I don't ride it much, so I have a problem of not only remembering to turn off the petcock after a ride, but also turning it on before a ride.
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okie2ee
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Re: Install electric solenoid fuel shutoff valve

Post by okie2ee »

All I can do is tell you that the shut-off valve is still working fine, with no problems so far. Sounds like it would be an good solution to the problem you described.
mito57
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Re: Install electric solenoid fuel shutoff valve

Post by mito57 »

Nice mod! My only concern is what would happen should the valve fail to open either for an electrical or mechanical problem. Do you have an easy way to bypass it?
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Re: Install electric solenoid fuel shutoff valve

Post by detdrbuzzard »

looks like i may be able to use this valve on my ST 1100
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Re: Install electric solenoid fuel shutoff valve

Post by WingAdmin »

detdrbuzzard wrote: Mon Feb 01, 2021 7:18 pm looks like i may be able to use this valve on my ST 1100
Honda used the same vacuum petcock on MANY different motorcycles. But yeah, that would be great for your reserve fuel, wouldn't it?
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Re: Install electric solenoid fuel shutoff valve

Post by detdrbuzzard »

WingAdmin wrote: Mon Feb 01, 2021 10:37 pm
detdrbuzzard wrote: Mon Feb 01, 2021 7:18 pm looks like i may be able to use this valve on my ST 1100
Honda used the same vacuum petcock on MANY different motorcycles. But yeah, that would be great for your reserve fuel, wouldn't it?
the aux tank is on the Mighty ST 1300, its gravity feed so a simple petcock will do which is what i have. my ST 1100 has a bad vacuum valve, you guys haven't seen it cause i'm still doing a little work on it. so far i've added a russell daylong seat, handlebar risers, brakes front and rear, tires front and rear, new rear shock, new springs up front along with new fork seals, a new set of tires, driving lights, and a trunk
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Re: Install electric solenoid fuel shutoff valve

Post by detdrbuzzard »

this is what i'm going to use the electric solenoid valve on that i've kept quiet about. i've found the valve on ebay and will be ordering a couple of them real soon
Attachments






'99 ST1100, '93 se
'75 cb750k, '79 cb 750f, '79 cb750 superK
'99ST1100, sunL70
'06 ST1300a
.... william
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Re: Install electric solenoid fuel shutoff valve

Post by MikeB »

It really seems to me that it is a whole lot of work and trouble just to bypass what Honda has installed and has a proven track record.

The OEM Auto Fuel Shut-Off valve works really well, needs no power and it easily rebuildable. It seems to me that leaving things stock is a better idea but that is just my opinion.
MikeB
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Re: Install electric solenoid fuel shutoff valve

Post by detdrbuzzard »

MikeB wrote: Tue Feb 02, 2021 5:45 pm It really seems to me that it is a whole lot of work and trouble just to bypass what Honda has installed and has a proven track record.

The OEM Auto Fuel Shut-Off valve works really well, needs no power and it easily rebuildable. It seems to me that leaving things stock is a better idea but that is just my opinion.
there are a lot of guys on the ST forum that are just bypassing the vacuum shut off and not having a problem that i thought about just doing that. some have rebuilt the valve but i like the electric one bette
'99 ST1100, '93 se
'75 cb750k, '79 cb 750f, '79 cb750 superK
'99ST1100, sunL70
'06 ST1300a
.... william
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okie2ee
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Re: Install electric solenoid fuel shutoff valve

Post by okie2ee »

MikeB wrote: Tue Feb 02, 2021 5:45 pm It really seems to me that it is a whole lot of work and trouble just to bypass what Honda has installed and has a proven track record.

The OEM Auto Fuel Shut-Off valve works really well, needs no power and it easily rebuildable. It seems to me that leaving things stock is a better idea but that is just my opinion.
All is well and good if your valve is not defective..............mine was defective and I rebuilt it and it was still defective............ and then it becomes an issue of making Honda richer and me poorer or finding another lower cost solution with equal or better reliability...........a quick Google search indicates that all is not honky dory with the OEM Auto Fuel Shut-Off valve................I feel a whole lot more confident that gas will be flowing reliably and not varying intermittently with vacuum related issues...........that's my experience and it wasn't all that much work to convert to an electric shutoff valve
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Re: Install electric solenoid fuel shutoff valve

Post by KI6JDE »

This is great, but how did you wire it. Can you share how you wired it?
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okie2ee
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Re: Install electric solenoid fuel shutoff valve

Post by okie2ee »

I wired the solenoid directly to the auxiliary power terminal block above and next to the fuses and relays..............these two terminals are powered up with the key switch in the run position.............solenoid is still working without any problems.......no more surging or hesitations under hard throttle................if you need anymore info please let me know.........


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