GL 1000 Single Carb Conversion


Information and questions on GL1000 Goldwings (1975-1979)
Post Reply
robdot1964@gmail.com
Posts: 21
Joined: Fri Apr 30, 2021 12:24 pm
Location: Canada
Motorcycle: 1979 Honda GL 1000

GL 1000 Single Carb Conversion

Post by robdot1964@gmail.com »



I just finished converting my 79 GL 1000 to a single carb. I couldn't be happier. The old carbs were constantly plugging up. It got to the point where I could remove them in under 10 minutes!. I went with the kit I found on Etsy and I learned a few things. First, the carb comes pre-jetted with a 127 jet. It comes with an extra 137 jet, install it, it needs it. Get the VW air filter assembly that fits the Pict 3 VW carburetor. Bottom end is great but you will lose some top end. 70mph roll-ons are not as fast as the original equipment but its a 43 year old bike so a gentle roll-on is the way to go. Email me if you need any help with it.


User avatar
landisr
Posts: 1096
Joined: Tue Jul 28, 2009 12:18 pm
Location: Gilbert, AZ
Motorcycle: 1994 GL1500A 207k miles
2022 Royal Enfield Interceptor 650 6k miles
All miles are mine

Re: GL 1000 Single Carb Conversion

Post by landisr »

This old fogey is curious. Let us know how it runs and how the fuel mileage compares with stock, if you care to measure it. Thx either way, and enjoy.

Ron in AZ
I'm not so sure about an inner child, but I have an inner idiot that surfaces every now and then.. :mrgreen:

Avatar taken at the Pine Breeze Inn, famous from Easy Rider.
robdot1964@gmail.com
Posts: 21
Joined: Fri Apr 30, 2021 12:24 pm
Location: Canada
Motorcycle: 1979 Honda GL 1000

Re: GL 1000 Single Carb Conversion

Post by robdot1964@gmail.com »

The old set up averaged 8L/100kmh or 29 mpg. The last two tanks averaged 7.6L /100km. A definite improvement. There are some flat spots when acceleration but it's a definite improvement. I highly recommend this. The carb is so simple as well. Also, if it needs replacing you can get one on Amazon for $100. Thats less than a rebuild kit
robdot1964@gmail.com
Posts: 21
Joined: Fri Apr 30, 2021 12:24 pm
Location: Canada
Motorcycle: 1979 Honda GL 1000

Re: GL 1000 Single Carb Conversion

Post by robdot1964@gmail.com »

One more update. i found the electric choke to be unreliable. It either stayed on too long or not long enough. I disconnected power to the choke and then I used the old choke cable (which I hadn't removed) to create a manual choke. Works great now. The electric choke would open wide when it shut off. This caused too much air and a lean condition. The manual choke allows you to 'tune' the engine to the perfect sweet spot. Just completed a 300 mile trip and the bike ran excellent. Good fuel economy as well.


Post Reply