Ignition problems for 1975 Honda goldwing


Information and questions on GL1000 Goldwings (1975-1979)
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pkovalko
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Motorcycle: 1975 GL1000

Ignition problems for 1975 Honda goldwing

Postby pkovalko » Fri May 13, 2011 4:31 pm



I have a 1975 Honda Goldwing. I'm getting about 4 volts to the points. Any ideas?

Does anyone know what kind of resistor it is supposed to have? There were two resistors connected to the ignition coils. I took one off because it didn't look original (there was silicone all around it). I think it had an electronic ignition at one point.

Also, the bike starts up but then starts to back fire. Eventually it dies out. Any Ideas?

-Peter



TheArtist
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Location: dell rapids
Motorcycle: 1979 GL 1000

Re: Ignition problems for 1975 Honda goldwing

Postby TheArtist » Mon May 16, 2011 8:23 am

See my post just below on the glass resistor. Also if yours is like mine and sat for 2 or more years, all 4 of the floats were froze solid. gas was just pouring in. It would run for 10 to 15 seconds and flood itself out. It also backfired alot. Good Luck.

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virgilmobile
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Re: Ignition problems for 1975 Honda goldwing

Postby virgilmobile » Mon May 16, 2011 3:03 pm

With BOTH points open you should measure near battery volts on the point wire.The resistor is a voltage/current limiter.The coils are rated for about 8 volt running.the sand block resistor is there to lower the voltage to operating specs.12 volts goes through the on position then to the resistor.from the resistor to each coil,from the coil to each point.If the resistor is the wrong one(assuming one point is closed and the other is open)one would measure low volts,but not 4.I would expect to see about 8 volts at the open point.This bike never had a really great ignition system.It had to be timed by the book,and a hot battery just to see a spark.I opted for a electronic retro-fit.BIG difference in starting it up.

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Fred Camper
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Motorcycle: 1977 GL1000, 1976 LTD GL1000

Re: Ignition problems for 1975 Honda goldwing

Postby Fred Camper » Mon May 16, 2011 9:04 pm

Dynatek Ignition, Dynatek Coils, Dynatek solid black plug wires. Runs like a champ and money well spent. Not for someone wanting pure stock, but for a situation when reliabilty takes presidence.

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virgilmobile
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Re: Ignition problems for 1975 Honda goldwing

Postby virgilmobile » Tue May 17, 2011 4:11 pm

Also bypassed the mechanical pump and put on a 2.5 psi electric.Let it fill the carbs rather than cranking the battery near dead just to get gas.

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portugeezer
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Location: Mchenry, Illinois
Motorcycle: 1976 gl1000
1982 Gl500
1984 Honda Magna V30

Re: Ignition problems for 1975 Honda goldwing

Postby portugeezer » Fri May 20, 2011 8:53 pm

Any increase in power with these mods? Just asking because after riding the 94 Magna my Gl1000 is so slow. I love the bike don't get me wrong but it is very slow for how much fuel it uses

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portugeezer
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Re: Ignition problems for 1975 Honda goldwing

Postby portugeezer » Fri May 20, 2011 8:56 pm

I already got rid of the points I had enough of those on cars when I first started driving. I once bought points for an old Vista Cruiser I had from Kmart then spent about $300 throwing parts at the car trying to figure out why it ran bad. Sometimes I am glad I got smarter with age ;)

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virgilmobile
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Re: Ignition problems for 1975 Honda goldwing

Postby virgilmobile » Fri May 20, 2011 11:50 pm

There's really not much increase in torque with the ignition or fuel pump mod,only a great improvement in getting it started.The best performance improvement is a very well adjusted and synced carb set.

Oh,don't compare a apple to an orange.The magna is a different machine,jumpy,narrow and torquey.The wing is heavier,wider and a little tamer,but don't underestimate it's pure power.After a good carb setup,my 1000 would stand up and bark.Scared the be-geezers out of me.

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Fred Camper
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Re: Ignition problems for 1975 Honda goldwing

Postby Fred Camper » Sat May 21, 2011 9:56 am

Recall the 1975 wing was targeting to be the fastest bike in its day, but the Kawasaki KZ900 took the crown yet the GL had more power. Honda tuned more for touring into the future with the GL line, just not the way they started the line.

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portugeezer
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Re: Ignition problems for 1975 Honda goldwing

Postby portugeezer » Sat May 21, 2011 10:26 am

I have a 1981 KZ440 that I did a lot of work to and I seems to be much faster than my GL1000. My carbs are cleaned and even have slightly larger jets that came in a kit. Brought it to a friends house to sync them and they were dead nuts on. My friend is a bike mechanic so I assume it is right. I can turn my idle down to 800 and it runs fine but the oil pressure drops too low so I put it back to 1000. I only get I'm guessing about 20 mpg and the bike does not smell like raw fuel when running the plugs don't foul out or anything. I wonder why I have no power then. I thought maybe that was why Honda kept making the engines bigger. Hmmm what could be wrong? I mean really the bike runs fine but it's about as fast as my wifes Honda Reflex scooter which is 250cc. I have been on that with friends trying to follow me in cars and they couldn't keep up. Maybe the smoothness is deceiving me? Or I'm just spoiled by how fast that Magna is for a cruiser bike. I'm going to actually figure out my gas mileage and do a few things to see if I just think I'm going slower because of the Faring and lowers. I literally feel no wind on this bike. I just put the most comfortable seat I have ever sat on and added a throttle lock. I found a chrome kickstand and installed it. My bike is sweet! The Goldwing thing is however very new to me! I do appreciate all the tips and advice I'm getting here!

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portugeezer
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Re: Ignition problems for 1975 Honda goldwing

Postby portugeezer » Sat May 21, 2011 10:36 am

BTW one of the guys I ride with just picked up an old KZ1000 I think it's a 1979 or 80 but not positive. It's the LTD model and wicked scary fast! A very cool vintage bike IMO. I'm not really sure why a bike needs to be that fast or for that matter the Hayabusa seems like a waste to me. The other day I was riding my Goldwing and I was doing 60 in a 55 I got passed by a group of young guys on sport bikes one of them even did a wheelie as they passed! Not one guy had a helmet,boots, or gloves just T shirts jeans and tennis shoes. Seems crazy to me! I have always tried to ride as safely as possible I guess that's how I made it to still be riding in my 50's

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Fred Camper
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Re: Ignition problems for 1975 Honda goldwing

Postby Fred Camper » Sat May 21, 2011 7:42 pm

A Stock Goldwing can beat a 13 second quarter mile, so mark that off and have a friend time you. If you are not close to that number, then something is going on with your carburation.




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