Electric fuel pump on a 77

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leggman
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Electric fuel pump on a 77

#1

Post by leggman »

I have a 77 that I am installing a 1200 fuel pump on and I was wondering where would be the best place to tap into the electrics for the fuse and wiring to the pump.
On my 79 I came off the accessory terminal but the 77 does not have one.
Thanks. Dave
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CYBORG
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Re: Electric fuel pump on a 77

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Post by CYBORG »

leggman wrote:I have a 77 that I am installing a 1200 fuel pump on and I was wondering where would be the best place to tap into the electrics for the fuse and wiring to the pump.
On my 79 I came off the accessory terminal but the 77 does not have one.
Thanks. Dave
I would wire it thru a relay direct to any circuit that is hot when the key is on. Some members wire in a tip over sw, so that it will stop pumping in the case of a tip over. I only use the relay .
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
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BlueThunder
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Re: Electric fuel pump on a 77

#3

Post by BlueThunder »

Better yet... wire the relay power into the run-stop switch. This way if the switch is set to stop, the pump won't run.
...Brian
2014 CTX1300 Deluxe - BlackThunder aka Predator
1977 GL1000 - Ox
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CYBORG
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Re: Electric fuel pump on a 77

#4

Post by CYBORG »

Don't see the advantage to that, but it would work if you use a relay.
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
leggman
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Re: Electric fuel pump on a 77

#5

Post by leggman »

That would be an easy way to disable the pum during maintenance. Makes sense. Or a small toggle switch under the shelter half.
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CYBORG
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Re: Electric fuel pump on a 77

#6

Post by CYBORG »

The pump only pumps until the carbs are full. If the bike is not running it will shut down till the carbs need fuel
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
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Sidecar Bob
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Re: Electric fuel pump on a 77

#7

Post by Sidecar Bob »

Unless the bike is on its side and gas is pouring out of the carbs....

FWIW, I considered an electric pump and even experimented with a vacuum pump but in the end I rebuilt the mechanical one.
Mr. Honda ('83 GL1100/Dnepr) summer How a motorcycle evolves thread
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
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CYBORG
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Re: Electric fuel pump on a 77

#8

Post by CYBORG »

Sidecar Bob wrote:Unless the bike is on its side and gas is pouring out of the carbs....

FWIW, I considered an electric pump and even experimented with a vacuum pump but in the end I rebuilt the mechanical one.
If the bike is on its side, especially a side car rig, you have a few other problems :lol: But I under stand your concern. if its a concern, install a tip over switch to shut it off,...or even a fire suppression system. I just like to live on the edge, and that is just one other thing to go wrong lolol
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
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Sidecar Bob
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Re: Electric fuel pump on a 77

#9

Post by Sidecar Bob »

Yeah. I guess it wouldn't be much worse than a gravity feed petcock.

BTW: I experimented with the pump before I got the sidecar for the 'Wing.
Mr. Honda ('83 GL1100/Dnepr) summer How a motorcycle evolves thread
The Famous Eccles ('84 CX650EI/VeloUral) winter Never Ending Build (CX500forum)
Click: Colour schematics for all GL1000 & GL1100 and GL1200 standard models plus instructions on how to download the full size version
"A guy with two sidecars can't be all bad." - Cookie
Another guy with two sidecars..... Hmmmm... must be something to that....
leggman
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Re: Electric fuel pump on a 77

#10

Post by leggman »

I wired in the electric pump today but I still don't have a battery for the bike yet so I was unable to check it. I used the black/white wire going to the coils as my switching/coil wire for the relay and used an inline auto blade type fuse of 20 amps going straight from the battery to the pump through the relay of course. I ran a heavy ground wire from the battery to one of the mounting bolts for the regulator and the relay ground and the pump ground tie in there. I need to get a battery but I don't want to get fleeced in the process.
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OCR
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Re: Electric fuel pump on a 77

#11

Post by OCR »

Easy test, do you have a set of jumper cables?
Hook up to car/truck/riding mower and see it it works as intended.
79 CX500custom
76LTD
77Goldwing
2001 Polaris Scrambler 500 4X4

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