Reply
 
LinkBack Thread Tools
post #11 of 49 (permalink) Old 06-17-2014, 08:09 PM
Still Learning
 
newday777's Avatar
 
Join Date: Mar 2009
Location: Milford NH & Oceanside CA(N San Diego)SoCal USA
Model: 2008 GL1800 Level 4
Posts: 13,270
Garage
Quote:
Originally Posted by westgl View Post
I wired up my new MP08 coils identical to stock 83' OEM specs only difference is now you have different coils in position, Plugs wires are also going to same cyl. and same position on the coils as stock OEM per the Honda service manual
Did you extend the mounts as the 1500 coils are shorter than the 1100s.
Also, did you use the 1100 coil resistor?

Stu
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

John 14:6 Psalm 118:19-29
CMA Wings of Eagles-Escondido, Patriot Guard Ryder
+2008 Cabernet Red ABS/Airbag bought 6/2013 @16,000
+1983 ASPENCADE Barn find @36,000 to be sold
+1976 CB750K6 @25,000 was Dad's
Previous bikes
-1999 GL1500 ASPENCADE Red Sold barn find restored
-1999 GL1500 SE(@57k)(totaled by cagger @105,000) Feb 2013
-76 CB750K Red(new) sold @ 45k
-75 CB750K Blue(new) 9,000 mi Before cousin totaled it.
74 CB450 Burnt Orange(new) 9,000 miles sold
newday777 is offline  
Sponsored Links
Advertisement
 
post #12 of 49 (permalink) Old 06-17-2014, 08:12 PM
Still Learning
 
newday777's Avatar
 
Join Date: Mar 2009
Location: Milford NH & Oceanside CA(N San Diego)SoCal USA
Model: 2008 GL1800 Level 4
Posts: 13,270
Garage
The missing could have been leaking plug wires or plug caps if they are still original. I had that on my 83A a few years back. Got 6' bulk 7mm plug wire and 4 new NGK plug caps and no more missing.

Quote:
Originally Posted by cowboy76 View Post
Got a set of 1500 coils & wires on the way. Gonna pull the carbs so, while I'm in there figured I would do this upgrade. Recently while on vacation the bike had to sit outside in the rain one night, the next morning it missed on 2 cylinders but it came out of it. Leads me to think small crack in one of the coils. Can't hurt

Rex

Stu
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

John 14:6 Psalm 118:19-29
CMA Wings of Eagles-Escondido, Patriot Guard Ryder
+2008 Cabernet Red ABS/Airbag bought 6/2013 @16,000
+1983 ASPENCADE Barn find @36,000 to be sold
+1976 CB750K6 @25,000 was Dad's
Previous bikes
-1999 GL1500 ASPENCADE Red Sold barn find restored
-1999 GL1500 SE(@57k)(totaled by cagger @105,000) Feb 2013
-76 CB750K Red(new) sold @ 45k
-75 CB750K Blue(new) 9,000 mi Before cousin totaled it.
74 CB450 Burnt Orange(new) 9,000 miles sold
newday777 is offline  
post #13 of 49 (permalink) Old 06-17-2014, 09:59 PM Thread Starter
Senior Member
 
westgl's Avatar
 
Join Date: Apr 2008
Location: Central Point, Oregon, USA
Posts: 1,331
Garage
Yes I removed the resistor
No I did not need to extend the mounts
I just used a few washers to get some spacing between the coil leads and the mounting bracket I just flip the stock brackets around so they mount up in the stock coil mounts that gives you the correct spacing

Current Bikes,
1983 GL1100 72K 32DFT Single 2-bbl Progressive Carb, and Runs Excellent,
1984 GL1200A 55K Reverse Trike Project, Single 2bbl. Progressive carb
1986 GL1200 Interstate, Now Naked, She just turned 43K
1988 GL1500/6 Phantom Grey 2-bbl SCC Trike Mustang GT Rearend, Rear Disc Brakes, HD Mufflers
2005 Burgman 650 20K
07' M109R 1855 miles 130hp 120ft lb torque Reverse Trike 99' Miata front suspension
2013 Honda NC700X 4k, AVG 77.68mpg
2015 Valkyrie, 4K miles Hot rod, Excellent bike
westgl is offline  
 
post #14 of 49 (permalink) Old 06-26-2014, 11:19 AM
Junior Member
 
rmkrider's Avatar
 
Join Date: May 2008
Location: , Minnesota, USA
Year: 1986
Make: Honda
Model: 86 GL1200A Aspencade
Posts: 6
Just did this update on my 1986 GL1200A. It now has 2 1500 coils I got off of ebay. 1 of the old coils had a crack, so it had weak spark on cyl. 1 & 2. It would run OK cool, but horrible when warm.

Used Twisty's method of 3/16" gap on extra plug to find the weak spark.

With new(used 1500) coils, the bike is now running better than ever. It has never started this good and has both great idle and low end power when it's warm or cold.

Many thanks to Westgl and others for all the great information.

I've been chasing this issue for some time now and once again am riding around with perma-smile.

86 GL1200A
rmkrider is offline  
post #15 of 49 (permalink) Old 06-27-2014, 09:43 AM Thread Starter
Senior Member
 
westgl's Avatar
 
Join Date: Apr 2008
Location: Central Point, Oregon, USA
Posts: 1,331
Garage
rmkrider Fantastic! Great Job!!

Glad to hear that it worked out for you.

The 86' GL12 that's a great bike.

I also Have a 86' GL12I, that I conveted to the GL1500 coils as well as my 83' GL11, but my 86' GL12 has been on a diet.

I dont know some how the fairing, the trunk, and saddle bags all flew off while i was riding one day, and this was what was under it all, see attached pictures

Now she is a 86' GL12N (N= Naked)

As far as the stock OEM coil mounts that came with your bike.

Did the GL1500 Coils mount as they did stock?

Did you end up using the GL1500 Spark Plug Wires that came with the coils?

My GL1500 coils mounted the same as the stock OEM coil location and in the bikes Oem mounting holes, as the stock OEM coils did stock.

After adding a couple washers between the wiring connections side of the coil(s) and the OEM coil mount that came with my bike.

This is provide some spacing between the metal coil mount and the coil connections, this is to avoid shorting to ground the coils wiring,

Then just flip the coil mounts around to get the proper mounting holes to line up with the frame mounting holes.
Attached Images
File Type: jpg P1020172 1 comp 398k.jpg (463.6 KB, 114 views)
File Type: jpg P1020173 1 comp 398k.jpg (518.8 KB, 106 views)
File Type: jpg P1020174 1 comp 398k.jpg (459.9 KB, 116 views)

Current Bikes,
1983 GL1100 72K 32DFT Single 2-bbl Progressive Carb, and Runs Excellent,
1984 GL1200A 55K Reverse Trike Project, Single 2bbl. Progressive carb
1986 GL1200 Interstate, Now Naked, She just turned 43K
1988 GL1500/6 Phantom Grey 2-bbl SCC Trike Mustang GT Rearend, Rear Disc Brakes, HD Mufflers
2005 Burgman 650 20K
07' M109R 1855 miles 130hp 120ft lb torque Reverse Trike 99' Miata front suspension
2013 Honda NC700X 4k, AVG 77.68mpg
2015 Valkyrie, 4K miles Hot rod, Excellent bike
westgl is offline  
post #16 of 49 (permalink) Old 06-27-2014, 10:14 AM Thread Starter
Senior Member
 
westgl's Avatar
 
Join Date: Apr 2008
Location: Central Point, Oregon, USA
Posts: 1,331
Garage
Quote:
Originally Posted by pdbro View Post
inevitable question that will come is how this might apply to 1100s?

then if if does apply, would it be a better way to go than the 'neon' upgrade option that is also well sorted out
Hey pdbro,

I have no side by side comparison,

But I can say it is cheap, with many Parts available, and EASY to do mod,

I did not have to make any brackets, I used the brackets that came with my bike, the stock oem coil mounting brackets, this is a simple bolt on mod./upgrade

Mounting was very easy and as it was with OEM mounting, coil wires are included, just cleaned them up using some old Brake fluid I had after draing brakes on one of my bikes, it make the rubber softer, and removes most if not all the dirt from the coil wires to make them look much better than when you receive them, near new, depending on how long you leave on the brake fluid on before wiping it off.

GL1500 production date; 1988' to 2000' a 12 year run, this provides many used parts.

It was a upgrade to my 83' GL11, as I have a significantly hotter spark now than i had before the GL1500 coils, that is a noticeably hotter spark when looking at spark plug fire jump, and in starting, and riding performance.

Current Bikes,
1983 GL1100 72K 32DFT Single 2-bbl Progressive Carb, and Runs Excellent,
1984 GL1200A 55K Reverse Trike Project, Single 2bbl. Progressive carb
1986 GL1200 Interstate, Now Naked, She just turned 43K
1988 GL1500/6 Phantom Grey 2-bbl SCC Trike Mustang GT Rearend, Rear Disc Brakes, HD Mufflers
2005 Burgman 650 20K
07' M109R 1855 miles 130hp 120ft lb torque Reverse Trike 99' Miata front suspension
2013 Honda NC700X 4k, AVG 77.68mpg
2015 Valkyrie, 4K miles Hot rod, Excellent bike
westgl is offline  
post #17 of 49 (permalink) Old 06-30-2014, 11:05 AM
Junior Member
 
rmkrider's Avatar
 
Join Date: May 2008
Location: , Minnesota, USA
Year: 1986
Make: Honda
Model: 86 GL1200A Aspencade
Posts: 6
Westgl,

Here are my answers to your questions...

Did the GL1500 Coils mount as they did stock?


Similar to you, when swapping in the gl1500 coils to the 86 gl1200A mounts, I added a couple washers to gain some space for the connectors. Also, since the coils are shorter, I found a short slotted flat chunk of shelving mount I had laying around and used that to extend the coil pack mount to match the holes on the bike frame. Just added that to the front side and used the same rear factor mount to keep easier access to plug wire screw connectors. Sorry, no pics.

Did you end up using the GL1500 Spark Plug Wires that came with the coils?


I did use the gl1500 wires as they seem in good shape. Also like you I use one straight boot and one angled boot to give it a cleaner finished look. Same as your pics.

Still amazed at how much better the bike starts now. Thanks again!!

86 GL1200A
rmkrider is offline  
post #18 of 49 (permalink) Old 06-30-2014, 08:17 PM Thread Starter
Senior Member
 
westgl's Avatar
 
Join Date: Apr 2008
Location: Central Point, Oregon, USA
Posts: 1,331
Garage
Great rmkrider,

Your information may help someone else decide which way they want to go.

Current Bikes,
1983 GL1100 72K 32DFT Single 2-bbl Progressive Carb, and Runs Excellent,
1984 GL1200A 55K Reverse Trike Project, Single 2bbl. Progressive carb
1986 GL1200 Interstate, Now Naked, She just turned 43K
1988 GL1500/6 Phantom Grey 2-bbl SCC Trike Mustang GT Rearend, Rear Disc Brakes, HD Mufflers
2005 Burgman 650 20K
07' M109R 1855 miles 130hp 120ft lb torque Reverse Trike 99' Miata front suspension
2013 Honda NC700X 4k, AVG 77.68mpg
2015 Valkyrie, 4K miles Hot rod, Excellent bike
westgl is offline  
post #19 of 49 (permalink) Old 07-15-2014, 08:10 PM
Junior Member
 
Join Date: Oct 2013
Location: Ingleside IL - USA
Year: 1986
Make: Honda
Model: GL1200 Aspencade w/Koko trike conversion
Posts: 4
westgl:

Many, many thanks for sharing your discovery. I just completed swapping out my coils, as the left coil died - no spark to 3-4. I had cleaned/rebuilt/synced the carbs on my 86 1200A using Randakk's kit, including cleaning the idle mixture jets and adjusting the floats. I could not get the idle to stabilize at a constant RPM. And she'd backfire thru the plenum between 1300-3000 RPM when out driving. I was giving the idle mixture screws 1 final adjustment before removing the carbs to give them a good soak in Pine-Sol when it started running on just the front 2 cylinders. I got some GL1500 coils off a 99 Valkerie on ebay and installed them. I used the spark plug wires as well, but swapped the wire for cyl-4 with the one from cyl-5 as it was a little longer. WOW!!! What a difference. She idles beautifully now and runs like a rocket. No more low-end backfiring either. And it was a plug-n-play mod. I didn't use the OEM bracket which holds the 3 sets of wire plugs and just reversed the front mount. The coils lined up perfectly with the original mounting holes. I did put a couple of washers on the mounts by the wire terminals, just to ensure there would be no surprises. Thanks again...
ripsnort56 is offline  
post #20 of 49 (permalink) Old 07-15-2014, 10:11 PM Thread Starter
Senior Member
 
westgl's Avatar
 
Join Date: Apr 2008
Location: Central Point, Oregon, USA
Posts: 1,331
Garage
Quote:
Originally Posted by ripsnort56 View Post
westgl:

Many, many thanks for sharing your discovery. I just completed swapping out my coils, as the left coil died - no spark to 3-4. I had cleaned/rebuilt/synced the carbs on my 86 1200A using Randakk's kit, including cleaning the idle mixture jets and adjusting the floats. I could not get the idle to stabilize at a constant RPM. And she'd backfire thru the plenum between 1300-3000 RPM when out driving. I was giving the idle mixture screws 1 final adjustment before removing the carbs to give them a good soak in Pine-Sol when it started running on just the front 2 cylinders. I got some GL1500 coils off a 99 Valkerie on ebay and installed them. I used the spark plug wires as well, but swapped the wire for cyl-4 with the one from cyl-5 as it was a little longer. WOW!!! What a difference. She idles beautifully now and runs like a rocket. No more low-end backfiring either. And it was a plug-n-play mod. I didn't use the OEM bracket which holds the 3 sets of wire plugs and just reversed the front mount. The coils lined up perfectly with the original mounting holes. I did put a couple of washers on the mounts by the wire terminals, just to ensure there would be no surprises. Thanks again...

Hey Ripsnort,

I am glad the GL15 MP08 coil conversion worked out for you.

I have converted both my 83' GL11 & My 86' GL12.

I let my brother in law ride my 86' GL12, that was all it took, now he caught a bug in his third eye, and wants to convert it right away.

Thats ok though, it will run much better when finished.

My brother in law wants to bring his bike (a 78' GL10, that has a 75'GL10 engine in it) over to my house in a few weeks so that we can do this MP08 Coil Conversion on his bike, we are also doing a single carb conversion on it at the same time.

He has a CI Alum. intake manifold and we will be modding it to reduce the id of the runners down to 1.00"ID from 1.500"ID

Current Bikes,
1983 GL1100 72K 32DFT Single 2-bbl Progressive Carb, and Runs Excellent,
1984 GL1200A 55K Reverse Trike Project, Single 2bbl. Progressive carb
1986 GL1200 Interstate, Now Naked, She just turned 43K
1988 GL1500/6 Phantom Grey 2-bbl SCC Trike Mustang GT Rearend, Rear Disc Brakes, HD Mufflers
2005 Burgman 650 20K
07' M109R 1855 miles 130hp 120ft lb torque Reverse Trike 99' Miata front suspension
2013 Honda NC700X 4k, AVG 77.68mpg
2015 Valkyrie, 4K miles Hot rod, Excellent bike
westgl is offline  
Reply

  Steve Saunders Goldwing Forums > Forums > Goldwing Technical Forum

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Steve Saunders Goldwing Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
GL1200 will not start - no spark @ plugs giddyupdaddy Goldwing Technical Forum 6 03-05-2014 12:44 PM
GL1200 won't start, no spark Coyote Kid Goldwing Technical Forum 2 06-18-2013 09:58 AM
Need a 4cyl Goldwing mechanic near Pittsburgh pa to Morgantown WV. handyrandy General Motorcycle Discussion Forum 8 09-08-2009 11:02 PM
84 GL1200 start problem 34Mike Goldwing Technical Forum 15 09-17-2008 08:03 PM
2004 goldwing wont start no spark or gas zonaville Goldwing Technical Forum 22 11-18-2005 03:27 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome