COIL selection
Moderators: CYBORG, Oldewing, robin1731, Forum Moderators
- gdonlo04
- Chrome Member
- Posts: 167
- Joined: Mon Jul 03, 2017 8:40 am
- Location: CHARLOTTE NC
COIL selection
I looked at the guru corner, typed in the search engine did not see this topic. i am looking for new coils for the 1978 gl 1000. i see 2 options 3 and 5 ohms. how do i know the correct one to purchase? looked at the Randak page no luck yet.
- Pony Ruiz
- Platinum Member
- Posts: 1923
- Joined: Sun Oct 25, 2009 7:17 pm
- Location: Seatown - WA
Re: COIL selection
I've had two 78's with the 3 ohm dyna green coils.
one with resistor - points
one without resistor - dyna
one with resistor - points
one without resistor - dyna
1978GL1000 naked - kinda sadly gone. no bike at the moment.
"The greatest shortcoming of the human race is our inability to understand the exponential function." Albert A. Bartlett.
"The greatest shortcoming of the human race is our inability to understand the exponential function." Albert A. Bartlett.
- CYBORG
- Moderator
- Posts: 24536
- Joined: Mon Jan 14, 2008 12:52 pm
- Location: Muskegon mich
Re: COIL selection
on my78 I have used 1200 coils. Dyna coils and ign. Both O.K. Now I run the C5 system, which comes with special coils, and it performs better then eather of the others. Had this bike since it was 1 year old, and now runs the best it has ever run
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
1977 custom with 1200 engine
1985 gl1200
- tlbranth
- Platinum Member
- Posts: 1636
- Joined: Mon Jan 28, 2008 12:16 am
- Location: carnation, wa
Re: COIL selection
If you stick with the ballast resistor setup you need 3 ohm coils. If you put a jumper across the ballast you can use 5 ohm. If you buy Dynatech coils, you could probably go 5 ohm and eliminate the resistor. They're much better coils than the original OEMs and should need no boost at start.
Strictly my opinion though.
Strictly my opinion though.
Terry
Don't own a Vanagon
Don't work at Boeing
Life is good
1999 GL1500 SE
2002 Honda VT750 "ACE"
1975 GL1000
1970 CB750
Don't own a Vanagon
Don't work at Boeing
Life is good
1999 GL1500 SE
2002 Honda VT750 "ACE"
1975 GL1000
1970 CB750
- Sidecar Bob
- Honored Life Member
- Posts: 7630
- Joined: Sun Jun 11, 2006 10:14 pm
- Location: Kawartha Lakes, Ontario
Re: COIL selection
I switched to GL1500 coils a couple of years ago and they work just fine without ballast resistors. You can see what I did here https://www.ngwclub.com/forum/viewtopic ... ls#p732354
My bike is an '83 (at the time it had a 1000 engine, now it has an 1100 but still with the same Dyna S and 1500 coils) so I used the 1100 coil brackets, which means it is slightly different from what you would need to do on a 1000 but at least one of the threads about similar conversions that I linked in that one have pics of how to do it in a 1000.
My bike is an '83 (at the time it had a 1000 engine, now it has an 1100 but still with the same Dyna S and 1500 coils) so I used the 1100 coil brackets, which means it is slightly different from what you would need to do on a 1000 but at least one of the threads about similar conversions that I linked in that one have pics of how to do it in a 1000.
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....
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....
- ericheath
- Honored Life Member
- Posts: 9580
- Joined: Wed Jul 29, 2009 11:20 am
- Location: Winnipeg, Manituba
Re: COIL selection
Whatever I suggest here should be given ample time for a moderator to delicately correct. I apologize in advance.
77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
77 Wing. black
83 Wing, in pieces
"Continuing education is important even if the subject matter is fairly useless (as in this case)."---Greg Foresi
77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
77 Wing. black
83 Wing, in pieces
"Continuing education is important even if the subject matter is fairly useless (as in this case)."---Greg Foresi
- Sidecar Bob
- Honored Life Member
- Posts: 7630
- Joined: Sun Jun 11, 2006 10:14 pm
- Location: Kawartha Lakes, Ontario
Re: COIL selection
Good info but he's talking about resistance in the high tension side for noise suppression not the resistance of the primary (low voltage) side of the coil and the need for a ballast resistor.
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....
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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