80 GL1100I ACCEL Ignition Coil


Information and questions on GL1100 Goldwings (1980-1983)
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biba
Posts: 4
Joined: Sat Jun 15, 2019 7:39 pm
Location: Streamwood, IL
Motorcycle: 1980 Honda GL1100 Interstate

80 GL1100I ACCEL Ignition Coil

Post by biba »



Which coils should I buy for my 1980 Goldwing ACCEL 140403K or ACCEL 140404K ? I'm not sure if the only difference is in primary resistance or these are for different type of ignition
Inductive Discharge vs Capacitive Discharge. I would be grateful for any advice.
Thanks,
David


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dingdong
Posts: 4122
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500A
2004 NRX1800 Rune SOLD

Re: 80 GL1100I ACCEL Ignition Coil

Post by dingdong »

Do a search for Dodge Neon coil conversion. $25. This has been done by lots of folks with success.
biba
Posts: 4
Joined: Sat Jun 15, 2019 7:39 pm
Location: Streamwood, IL
Motorcycle: 1980 Honda GL1100 Interstate

Re: 80 GL1100I ACCEL Ignition Coil

Post by biba »

Thanks for reply dingdong. I really wanna go with ACCEL ignition coils but I will consider that conversion too.
froche
Posts: 307
Joined: Wed Mar 12, 2014 1:56 pm
Location: Vista, ca
Motorcycle: 1985 Goldwing Aspencade (GL1200A)
2002 GL1800

Former bikes;
2000 R1100RT
2005 Suzuki Bandit
1979 Yamaha XS1100
1978 Yamaha XS1100 Special
1990 Yamaha XV250
1980 Yamaha XV750
1979 Honda CB750
1968 Triumph Bonneville T120
1973 Honda CB450
1968 Harley Davidson Sportster
1974 Honda CB750
1968 Honda CL72

Re: 80 GL1100I ACCEL Ignition Coil

Post by froche »

Neon coils are really great. They work so well that i have increased my plug gap from .035 to .045 and have a really smooth idle. Typical price is 15 to 25 bucks. if you really have to have Acell coil try this , ACCEL REPLACEMENT IGNITION SUPERCOILS (SUPERCOIL (SINGLE COIL)) | DODGE NEON - ALL NEON MODELS (1995-2003) about 75.00.

Stock GW coils are probably 8000 to 1200 volts (based on a write up by Randakks), assumedly modern coils like the Neon should be higher, since MSD and Acell Neon coils claim to put out up to 32000 volts, you can safely assume the the generic Neon coil puts out 20 to 25 thousand volts!

The difference in compression ratios between the 1200 GW and a Neon is under 1.0 (9.6 vs 10.5) so the coil would work fine in either engine.

A high output coil will not change much if anything unless everything else is ok, no loss of compression, no oil on the plugs, no
mistiming, no problem with the points, condensers or if you bike has them pulse generators (all 1200s have pulse generators), air filter, carb settings and sync etc,,, and then they will only generate / make / supply the voltage needed to jump the gap so reset the gap, remember I used a 15 dollar Neon coil and increased the gap by .010 and i gonna try another .005 for at total of .015 making my plug gap .050!


Generally speaking:

The voltage required to light your plugs is constantly changing and can range from 5,000 volts to 40,000 volts and higher, depending on your engine setup.

Voltage needs to rise in proportion to the size of the spark plug gap. So if you put in a 50,000 output coil and don't increase the plug gap the coil will only put out enough to make a spark. If you didn't make it bigger it will have about the same voltage as your original coils (assuming they were working correctly). It’s important to note that the spark plug gap widens as the electrodes wears so the age of the spark plug may necessitate a higher voltage, depending on the electrode condition.

Voltage requirements rise in relation to cylinder pressures, which are highest at low speed and high load situations, such as accelerating from a standstill. Under these circumstances, and under high-rpm operation, higher voltage is required to avoid misfires.

The leaner the air/fuel ratio — the less gasoline per volume of air — the higher the voltage requirements. As automakers try to make engines more fuel efficient with fewer exhaust emissions, lean air/fuel ratios are common. But if the air/fuel ratio becomes too lean, a misfire could occur.
biba
Posts: 4
Joined: Sat Jun 15, 2019 7:39 pm
Location: Streamwood, IL
Motorcycle: 1980 Honda GL1100 Interstate

Re: 80 GL1100I ACCEL Ignition Coil

Post by biba »

The reason I want to change ignition coils is because my bike had power loss at higher rpms with original ignition coils ( they were also cracked). I spent many hours on fixing other things you mentioned (carburators, compression, valves etc) and I knew, other than ignition coils, engine worked flawlessly . I replaced them with the aftermarket ones from ebay. And after that I had no problem with the power on higher rpms. But at one point I was coming back from Michigan and got into heavy rain. The new aftermarket coils failed on me, they were shorting when they got wet. I was able to get home with huge misfire and then I put old coils back in. Now since there is winter and bike sitting in garage I want to fix it the proper way. At first I was sceptical about that Dodge Neon coils conversion but may as well do more research and go with that fix. I also want it to look as clean as possible. Thanks for the input !
froche
Posts: 307
Joined: Wed Mar 12, 2014 1:56 pm
Location: Vista, ca
Motorcycle: 1985 Goldwing Aspencade (GL1200A)
2002 GL1800

Former bikes;
2000 R1100RT
2005 Suzuki Bandit
1979 Yamaha XS1100
1978 Yamaha XS1100 Special
1990 Yamaha XV250
1980 Yamaha XV750
1979 Honda CB750
1968 Triumph Bonneville T120
1973 Honda CB450
1968 Harley Davidson Sportster
1974 Honda CB750
1968 Honda CL72

Re: 80 GL1100I ACCEL Ignition Coil

Post by froche »

To mount a stock sized Neon coil I used a piece of sheet metal. Made a sheet metal square that fit on the old holes left after removing the stock coils, After drilling holes to fit the frame holes, i made more holes to fit the Neon coils mounting holes. While there are several ways people have done this, i thought this was very simple.
Done this way the coil fits properly in the original coil location, and the outputs line up perfectly with the cylinders. You do have to make new wires but the stock plug caps are reusable, they simply unscrew off the stock wires and screw right back on to new wires.

Wires are 7MM solid wire / copper core, if you use the non wire or copper core wires you have to remove the suppressor found inside the plug caps. There is a measurement you can make with a DVOM to see if the suppressors are in spec.

You can read a conversation re this at;
viewtopic.php?t=61192&p=351717#p351717
Some photos


You need these to make new wire connections to fit the Neon coil.


Wiring diagram for Neon coils.


The copper clips needed to make contact with the coil output
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dingdong
Posts: 4122
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500A
2004 NRX1800 Rune SOLD

Re: 80 GL1100I ACCEL Ignition Coil

Post by dingdong »

biba wrote: Wed Dec 16, 2020 1:34 pm Thanks for reply dingdong. I really wanna go with ACCEL ignition coils but I will consider that conversion too.
That said... I have to admit that I have Accel coils on my 76. I put them on about 10 years ago before the Neon coils became popular. They work great at all rps ranges. Spark gap at .35.
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newday777
Posts: 2146
Joined: Tue Jan 11, 2011 5:21 pm
Location: Milford NH summer/fall & Oceanside, CA winters(N San Diego) with lots of miles riden between
Motorcycle: 2008 Cabernet Red. Level 4

1983 GL1100A Wineberry 36,000 miles

1975 CB750 K5 Planet Blue 7,800 miles

1976 CB750 K6 Anterris Red 25,000 miles

Past rides
1999A Restored from PO neglect & sold at 19,000 miles

1999SE Totaled by cager at 105,000 miles

Re: 80 GL1100I ACCEL Ignition Coil

Post by newday777 »

Looks like this foul mouthed crackhead used the 403.
I have no idea the answer to your question between the 2 different coils.

https://www.bing.com/videos/search?q=AC ... RE&PC=U316
froche
Posts: 307
Joined: Wed Mar 12, 2014 1:56 pm
Location: Vista, ca
Motorcycle: 1985 Goldwing Aspencade (GL1200A)
2002 GL1800

Former bikes;
2000 R1100RT
2005 Suzuki Bandit
1979 Yamaha XS1100
1978 Yamaha XS1100 Special
1990 Yamaha XV250
1980 Yamaha XV750
1979 Honda CB750
1968 Triumph Bonneville T120
1973 Honda CB450
1968 Harley Davidson Sportster
1974 Honda CB750
1968 Honda CL72

Re: 80 GL1100I ACCEL Ignition Coil

Post by froche »

140404k
.7 primary ohm resistance
Used for capacitive discharge ignition

140403k
3.0 primary ohm resistance


Of note these are both round coils (like the stock GW) but have plug outputs facing the side of the coil (Stock coils the wires are off one end.)

The Accell includes wires but these are non metallic core so either you have to get different ones or remove the resistor in the stock wires and replace with a large chunk of solid copper wire or use different plug ends.
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Chewy
Posts: 249
Joined: Thu Apr 18, 2019 11:07 pm
Location: Readyville, TN United States
Motorcycle: 1980 1100i Interstate
1983 1100a Aspencade

Re: 80 GL1100I ACCEL Ignition Coil

Post by Chewy »

i did this mod on my 80 model, and have been pleased ever since. i have put a little over 6k miles on it since then. i did not reuse the old plug boots, just used ones from a set designed for a 1989 ford ranger 2.9 liter v6 engine.


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