GL1200: Do I need to connect 4th gear and overdrive signal to Ignition?
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GL1200: Do I need to connect 4th gear and overdrive signal to Ignition?
Hi, I tried to search and Google it but could not find anything.
Sorry for my bad english.
I am building a streetscrambler from a Gl1200 Interstate 85 and I want to reduce/simplefy the electrics and the 4:h gear and OD is connected to the Ignition, I assume it has to do with timing advancment? I wont have any lights that indicate OD and I cant just short it out. What to do?
Best regards Patrik from Sweden.
Sorry for my bad english.
I am building a streetscrambler from a Gl1200 Interstate 85 and I want to reduce/simplefy the electrics and the 4:h gear and OD is connected to the Ignition, I assume it has to do with timing advancment? I wont have any lights that indicate OD and I cant just short it out. What to do?
Best regards Patrik from Sweden.
- CYBORG
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Re: GL1200: Do I need to connect 4th gear and overdrive signal to Ignition?
The gear selector light on the 1200 is controlled by a switch under the front cover. Same switch that shows the neutral light. Has no effect on ignition timing
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
1977 custom with 1200 engine
1985 gl1200
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Re: GL1200: Do I need to connect 4th gear and overdrive signal to Ignition?
That do I need to do with the two cables from gear select sensor into Ignition control module?CYBORG wrote:The gear selector light on the 1200 is controlled by a switch under the front cover. Same switch that shows the neutral light. Has no effect on ignition timing
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Re: GL1200: Do I need to connect 4th gear and overdrive signal to Ignition?
Or can I just the two wires? Now i realize that the OD cable shorts to ground when the bike is in 5:th gear.... :D
- ericheath
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Re: GL1200: Do I need to connect 4th gear and overdrive signal to Ignition?
I could be wrong, because it has happened before-lol- but I believe timing is advanced more in fourth and fifth gear. There are the wires which feed info as well as a vacuum signal. You could ride without it and probably not notice. With it intact you probably get a few for mpg .
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
- ericheath
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Re: GL1200: Do I need to connect 4th gear and overdrive signal to Ignition?
I lived in Karlstad for 35 years.
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
- CYBORG
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Re: GL1200: Do I need to connect 4th gear and overdrive signal to Ignition?
Looks like you are correct. As you say might be a MPG issue, and that makes sense to me. But I don't really worry about MPG , so I don't have a reference. That being said, I have a C5 system on my 78 and I control the Ign curve, four choices, which are not really to much difference between them, but is helpful when using the nitros, or steep hills.
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
1977 custom with 1200 engine
1985 gl1200
- 77Gowing
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Re: GL1200: Do I need to connect 4th gear and overdrive signal to Ignition?
Wulf, your English is fine.
Good luck on your project.
Good luck on your project.
"Less is More" Anonymous
77Gowing
1977 GL1000 "O'le Blue." (sold )
2014 Yamaha 950 V Star (sold)
2017 Indian Scout Std w/ABS (sold)
2009 Honda VTX1300R "Me Brudder's" (sold)
1984 Honda Interstate "84' 2outa4." Gone
1982 Honda GL1100 "After thought." Gone
77Gowing
1977 GL1000 "O'le Blue." (sold )
2014 Yamaha 950 V Star (sold)
2017 Indian Scout Std w/ABS (sold)
2009 Honda VTX1300R "Me Brudder's" (sold)
1984 Honda Interstate "84' 2outa4." Gone
1982 Honda GL1100 "After thought." Gone
- flyin900
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Re: GL1200: Do I need to connect 4th gear and overdrive signal to Ignition?
The module is so small that I would keep it intact and leave it in the circuit along with the vacuum hoses. If you don't have the OD lights that won't be an issue, yet removing the circuit completely may cause more issues than just gas mileage.
Current Bikes:
1966 CL77 - Honda 305cc - Dual purpose - "Gentleman's Scrambler" was a period moniker.
1967 CL175K0 - Low production number with #802 engine serial- winter 2019/2020 full restoration.
1972 CB350F - Baby Four with low mileage - Cosmetic refresh to the next level 2021/2022.
1978 CB550K - Very original bike with only 7499 Km. from new - light cleanup and refresh done.
1983 CB1100F - Canadian model - DOHC Supersport in pristine low kilometre condition from new.
1984 GL1200 - Standard model in showroom condition - two owner bike from new.
1984 CX650E - Restored summer 2017 - a rare Eurosport model - excellent one owner bike.
1966 CL77 - Honda 305cc - Dual purpose - "Gentleman's Scrambler" was a period moniker.
1967 CL175K0 - Low production number with #802 engine serial- winter 2019/2020 full restoration.
1972 CB350F - Baby Four with low mileage - Cosmetic refresh to the next level 2021/2022.
1978 CB550K - Very original bike with only 7499 Km. from new - light cleanup and refresh done.
1983 CB1100F - Canadian model - DOHC Supersport in pristine low kilometre condition from new.
1984 GL1200 - Standard model in showroom condition - two owner bike from new.
1984 CX650E - Restored summer 2017 - a rare Eurosport model - excellent one owner bike.
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Re: GL1200: Do I need to connect 4th gear and overdrive signal to Ignition?
Will keep it, I just lost it then I read the schematic, did not realize that the cables just shorts to ground then you shift to 4 and 5.flyin900 wrote:The module is so small that I would keep it intact and leave it in the circuit along with the vacuum hoses. If you don't have the OD lights that won't be an issue, yet removing the circuit completely may cause more issues than just gas mileage.
- rcmatt007
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Re: GL1200: Do I need to connect 4th gear and overdrive signal to Ignition?
did you all notice the manual used "very" instead of "Vary"
...signals the ignition control unit to electronically VERY ignition timing.....
...signals the ignition control unit to electronically VERY ignition timing.....
-Rodger-
all it takes for evil to prosper is the want of a few good men to do nothing-Edmund Burke
The question is not how much time do you have, it is what you do with the time that you have Gandalf
"One of the greatest dignities of humankind is that each successive generation is invested in the welfare of each new generation." Fred Rodgers
"it takes 10,000 hours to become an expert" ancient saying
78 constantly modified/customized since 1978, BOTM June 2015 de-evolving this very moment viewtopic.php?f=30&t=65511
76 Ltd "cookies bike" ALMOST DONE
79 project, finished, FOR SALE
'86 1200 (Beth's)(FOR SALE) with motorvation sidecar (sidecar sold) , July 2017 BOTM
'17 HD Road king and 08 HD Heritage softail (Beth's) (FOR SALE). I guess you can say we have MBS
all it takes for evil to prosper is the want of a few good men to do nothing-Edmund Burke
The question is not how much time do you have, it is what you do with the time that you have Gandalf
"One of the greatest dignities of humankind is that each successive generation is invested in the welfare of each new generation." Fred Rodgers
"it takes 10,000 hours to become an expert" ancient saying
78 constantly modified/customized since 1978, BOTM June 2015 de-evolving this very moment viewtopic.php?f=30&t=65511
76 Ltd "cookies bike" ALMOST DONE
79 project, finished, FOR SALE
'86 1200 (Beth's)(FOR SALE) with motorvation sidecar (sidecar sold) , July 2017 BOTM
'17 HD Road king and 08 HD Heritage softail (Beth's) (FOR SALE). I guess you can say we have MBS
- Track T 2411
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Re: GL1200: Do I need to connect 4th gear and overdrive signal to Ignition?
Yeah, who was the copy editor...rcmatt007 wrote:did you all notice the manual used "very" instead of "Vary"
...signals the ignition control unit to electronically VERY ignition timing.....
"I have no special talent. I am only passionately curious." - Albert Einstein
"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow
"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown
Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!
Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!
In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
'82 gl1100I, My first 'Wing, and an expensive lesson!
New2U Bike? Read Me.
"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow
"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown
Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!
Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!
In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
'82 gl1100I, My first 'Wing, and an expensive lesson!
New2U Bike? Read Me.
- 77Gowing
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- Joined: Wed Jul 22, 2015 4:31 pm
- Location: San Angelo, Texas
Re: GL1200: Do I need to connect 4th gear and overdrive signal to Ignition?
Is it very well or vary well?
Yeah but I have to give it to Honda, their FSM was written fairly well.
Yeah but I have to give it to Honda, their FSM was written fairly well.
"Less is More" Anonymous
77Gowing
1977 GL1000 "O'le Blue." (sold )
2014 Yamaha 950 V Star (sold)
2017 Indian Scout Std w/ABS (sold)
2009 Honda VTX1300R "Me Brudder's" (sold)
1984 Honda Interstate "84' 2outa4." Gone
1982 Honda GL1100 "After thought." Gone
77Gowing
1977 GL1000 "O'le Blue." (sold )
2014 Yamaha 950 V Star (sold)
2017 Indian Scout Std w/ABS (sold)
2009 Honda VTX1300R "Me Brudder's" (sold)
1984 Honda Interstate "84' 2outa4." Gone
1982 Honda GL1100 "After thought." Gone
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