gl1500 ignition problems?not really


Information and questions on GL1500 Goldwings (1988-2000)
  • Sponsored Links
User avatar
virgilmobile
Posts: 7650
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

gl1500 ignition problems?not really

Postby virgilmobile » Sat Mar 03, 2012 10:13 am



Annoyed by the long cranking needed on my 1500 compared to the 1100 and 1200 I had to find out if it was bad in some way.
My final analysis is this.
-------------That's the way it's designed and can not be changed.----------
Here's why.
The 1100 is a 4 cylinders using 2 coils,2 pulse generators and 2 ignition modules.The 1200 is very similar.One pulse coil fires a ignition module and it fires the coil.1 to 1 to 1.Instant spark as soon as it's cranked.
Well now they added another pair of cylinders.So a redesign was necessary.The engine still has 2 pulse coils on it and no crank angle sensor.Honda used a custom module to determine firing order of the 3 coils from 2 pulse coils.It appears that the module requires quite a few of these pulses before it actually fires the coil.
My 88 1500 consistently has a delayed spark as shown in the video.It is not related to volts or cranking time.It will fire the plug every time,it just takes a second to analyze the pulse info.
proprietary honda software ignition module
proprietary honda software ignition module


And the video...






User avatar
WingAdmin
Site Admin
Posts: 17046
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: gl1500 ignition problems?not really

Postby WingAdmin » Sat Mar 03, 2012 1:12 pm

Interesting. I know my 1100 will normally start the absolute instant I TOUCH the starter. I wonder if it is analysis on the part of the computer that's taking the time, or is it intentional for some reason? To allow fuel to arrive at the cylinders? No idea. Without knowing the programming, I guess there's no real way to know.

User avatar
virgilmobile
Posts: 7650
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: gl1500 ignition problems?not really

Postby virgilmobile » Sat Mar 03, 2012 1:50 pm

No a clue.Like Sgt.Friday says,just the facts mam,just the facts.
At least it's consistent and not a cold start issue.

Hey,wait a minute,there is a temp sensor attached to the ecm.I'll simulate a warm engine and check it again.
I can do that as soon as I get the rear put back together.
Oh,by the way,the88 does have a seal on the driveshaft too.


Return to “GL1500 Information & Questions”




Who is online

Users browsing this forum: Google Adsense [Bot] and 10 guests