Fuel pump upgrade ( electric ) on 1975 K1
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- Tin Member
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Fuel pump upgrade ( electric ) on 1975 K1
Hi all,
I did the needed jobs on my GL1000 K1 like rebuilding carbs, renewing timing belts, Dyna S installation, replacing one ignition coil, rebuilding the 30 A main switch, checking ground and supply resistance all around, BUT the idle was terrible: back firing now and then, rev. changing between 0 and 3000 rpm.
I moved the fuel pump tubes to an electric pump from an Yamaha R1 ( Carb. version !! ), and amasingly the old bike started like a charm and has super cold control with the choke.
I attach some few pictures of the set-up and later the optional electronics to control the pump,
rdgs, Erik
I did the needed jobs on my GL1000 K1 like rebuilding carbs, renewing timing belts, Dyna S installation, replacing one ignition coil, rebuilding the 30 A main switch, checking ground and supply resistance all around, BUT the idle was terrible: back firing now and then, rev. changing between 0 and 3000 rpm.
I moved the fuel pump tubes to an electric pump from an Yamaha R1 ( Carb. version !! ), and amasingly the old bike started like a charm and has super cold control with the choke.
I attach some few pictures of the set-up and later the optional electronics to control the pump,
rdgs, Erik
- Attachments
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- Simple iron plate to hold the new fuel pump.
- P1000168.JPG (178.68 KiB) Viewed 1646 times
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- Simple iron plate to hold the new fuel pump.
- P1000169.JPG (149.84 KiB) Viewed 1646 times
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- The pump placed in the holder.
- P1000170.JPG (182.19 KiB) Viewed 1646 times
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- Location: up by the Canadian border in WA state
Re: Fuel pump upgrade ( electric ) on 1975 K1
nice job. I like the way you think Erik. outside the box, as they say.
sorta bulldogged custom 1978 GL1000 - "geekster"
full Vetter dress 1979 GL1000 - "Barge" (currently down)
1986 1200 Aspencade - "Heart of Gold" - daily rider
1990 1500 Aspencade - It's ALIVE! but very, very naked. not in a good way.
1978 for $100 - project in worx
1978 from a previous member here - taking up space
my original '79 bought in '91 - replacing engine (eventually, maybe someday)
H2G2=42
A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity. ~ Robert A. Heinlein
The good thing about science is that it's true whether or not you believe in it. ~ Neil deGrasse Tyson
full Vetter dress 1979 GL1000 - "Barge" (currently down)
1986 1200 Aspencade - "Heart of Gold" - daily rider
1990 1500 Aspencade - It's ALIVE! but very, very naked. not in a good way.
1978 for $100 - project in worx
1978 from a previous member here - taking up space
my original '79 bought in '91 - replacing engine (eventually, maybe someday)
H2G2=42
A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity. ~ Robert A. Heinlein
The good thing about science is that it's true whether or not you believe in it. ~ Neil deGrasse Tyson
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- Location: Merced California
Re: Fuel pump upgrade ( electric ) on 1975 K1
It is my opinion that most of the members of this site think outside the box , the ingenuity shown on this site is outstanding...this is just another example..
Welcome to the site Erik...what is "RDGS" ?
Welcome to the site Erik...what is "RDGS" ?
bum
8 wings + 1 Triumph +2 Musclecars = 1 pissed off wife !!!
8 wings + 1 Triumph +2 Musclecars = 1 pissed off wife !!!
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- Tin Member
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- Location: broager denmark
- Contact:
Re: Fuel pump upgrade ( electric ) on 1975 K1
Hi,
Thanx for your compliments, they are always nice to have and to recall later on
I will test the electronic fuel pump control circuit in the near future and upload info here
BTW, rdgs is used in England and is an abbreviation of regards,
Best regards, Erik
Thanx for your compliments, they are always nice to have and to recall later on
I will test the electronic fuel pump control circuit in the near future and upload info here
BTW, rdgs is used in England and is an abbreviation of regards,
Best regards, Erik
- Cookie
- Honored Life Member
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Re: Fuel pump upgrade ( electric ) on 1975 K1
Looks like a nice compact pump.
Enjoy life,
Cookie
A guy with two sidecars can't be all bad.
Owner of 4.4 76s and one lone 75 Wings (does a spare engine make .2?)
Cookie
A guy with two sidecars can't be all bad.
Owner of 4.4 76s and one lone 75 Wings (does a spare engine make .2?)
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- Tin Member
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Re: Fuel pump upgrade ( electric ) on 1975 K1
Electric fuel pump now in place ..
- Attachments
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- Pump holder in place
- pump_holder.jpg (153.35 KiB) Viewed 1584 times
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- Pump on holder plate
- pump_holder2.jpg (172.35 KiB) Viewed 1576 times
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- Tin Member
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Re: Fuel pump upgrade ( electric ) on 1975 K1
I have now tested the electronic fuel pump control "on bike", and it works as intended
In case someone would like to make it, I have added the schematics. It is made with Eagle schematics and PCB design program, just post a message, then I will provide all the files needed to "repeat the success",
In case someone would like to make it, I have added the schematics. It is made with Eagle schematics and PCB design program, just post a message, then I will provide all the files needed to "repeat the success",
- Attachments
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- Plastic and electronics
- P1010840.JPG (206.95 KiB) Viewed 1536 times
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- Electronics close up look
- P1010841.JPG (226.27 KiB) Viewed 1531 times
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- And then the schematics
- Fuel_pump_control_sch.jpg (112.57 KiB) Viewed 1531 times
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- Honored Life Member
- Posts: 4646
- Joined: Wed Jun 28, 2006 2:52 pm
- Location: up by the Canadian border in WA state
Re: Fuel pump upgrade ( electric ) on 1975 K1
interesting...
sorta bulldogged custom 1978 GL1000 - "geekster"
full Vetter dress 1979 GL1000 - "Barge" (currently down)
1986 1200 Aspencade - "Heart of Gold" - daily rider
1990 1500 Aspencade - It's ALIVE! but very, very naked. not in a good way.
1978 for $100 - project in worx
1978 from a previous member here - taking up space
my original '79 bought in '91 - replacing engine (eventually, maybe someday)
H2G2=42
A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity. ~ Robert A. Heinlein
The good thing about science is that it's true whether or not you believe in it. ~ Neil deGrasse Tyson
full Vetter dress 1979 GL1000 - "Barge" (currently down)
1986 1200 Aspencade - "Heart of Gold" - daily rider
1990 1500 Aspencade - It's ALIVE! but very, very naked. not in a good way.
1978 for $100 - project in worx
1978 from a previous member here - taking up space
my original '79 bought in '91 - replacing engine (eventually, maybe someday)
H2G2=42
A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity. ~ Robert A. Heinlein
The good thing about science is that it's true whether or not you believe in it. ~ Neil deGrasse Tyson
- BlueThunder
- Platinum Member
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- Joined: Fri Nov 07, 2008 4:39 pm
- Location: Sarasota, Florida
Re: Fuel pump upgrade ( electric ) on 1975 K1
Why is an electronic control necessary to control the fuel pump? Is this for an EFI setup?
...Brian
2014 CTX1300 Deluxe - BlackThunder aka Predator
1977 GL1000 - Ox
2014 CTX1300 Deluxe - BlackThunder aka Predator
1977 GL1000 - Ox
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- Tin Member
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Re: Fuel pump upgrade ( electric ) on 1975 K1
It is mostly for safety reasons. The pump is only getting battery supply in 3 sec. after ignition is turned on, and when signals are received from one of coils primary circuit,
- Toehead
- True Blue Steel Biker
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- Joined: Fri Jul 15, 2011 3:10 pm
- Location: Mendon, MA
Re: Fuel pump upgrade ( electric ) on 1975 K1
Very nice setup you have. Can you share some photos from far away to let us see how it looks overall?
I like your idea of the control circuit. I may build something similar, if I don't decide to do an analog version (Pump runs in neutral and when the clutch lever is pulled, and when the engine has oil pressure , relay controlled)
I like your idea of the control circuit. I may build something similar, if I don't decide to do an analog version (Pump runs in neutral and when the clutch lever is pulled, and when the engine has oil pressure , relay controlled)
2012 Golf TDI, fast and frugal oil burner
1980 CX500C, All around road warrior (Sold)
1975 TS125 (Sold), old smoker
1977 naked GL1000, Highway cruiser
'81 GL1100 14,000 (reconditioned and sold)
'81 GL1100 50,000 miles (under construction)
2X 1981 CM400 beginner bike (sold)
1980 CB750C (sold)
1994 Virago 750 (Wifey's bike)
'76 GL1000 Sulphur Yellow (Megasquirted efi build) http://www.ngwclub.com/forum/viewtopic.php?f=47&t=59774
1980 CX500C, All around road warrior (Sold)
1975 TS125 (Sold), old smoker
1977 naked GL1000, Highway cruiser
'81 GL1100 14,000 (reconditioned and sold)
'81 GL1100 50,000 miles (under construction)
2X 1981 CM400 beginner bike (sold)
1980 CB750C (sold)
1994 Virago 750 (Wifey's bike)
'76 GL1000 Sulphur Yellow (Megasquirted efi build) http://www.ngwclub.com/forum/viewtopic.php?f=47&t=59774
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- Gold Member
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- Joined: Wed Oct 22, 2008 3:59 pm
- Location: Greenville, SC, USA
Re: Fuel pump upgrade ( electric ) on 1975 K1
I like this idea of the control circuit. I was able to order all of the required parts (except the relay, which I have on hand) from http://www.mouser.com for less than $20, including the enclosure.
If this is used on a bike with a Dyna electronic ignition, a .01uf cap is needed in series with R4, or the engine will not run.
If this is used on a bike with a Dyna electronic ignition, a .01uf cap is needed in series with R4, or the engine will not run.
Mike
So many interests, so little time...
'76 GL1000: "The Super Bee" - finished.
'75 GL1000: Basket Case, Next project in queue
So many interests, so little time...
'76 GL1000: "The Super Bee" - finished.
'75 GL1000: Basket Case, Next project in queue
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