Before using this site please read the site disclaimer. Also please note that any links provided may be part of an affiliate programme (viz. eBay, Amazon) which helps support the site as I will earn a commission when visitors make a qualifying purchase.
Wondering if you have a vacuum operated petcock or an accelerator pump on your Honda CX or GL carburetors? Check the list below for what was stock for these vehicles.
The fuel line feed was purportedly moved to assist with the twisted twin's tendency to start on only the left cylinder when it's on the side stand. As any owner will attest, it didn't solve the issue completely.
The accelerator pump helps with off-idle response by providing a little bit of extra fuel to richen the mixture at a point where it has a tendency to lean out.
GL500 carbs are closer together than CX500 carbs - GL500 carbs are ~100mm spaced, CX500 carbs are ~160mm. CX650 and GL650 carbs are angled and have more complex throttle linkages etc. accordingly.
The float difference is important as one is adjustable and one is not and each type uses a different sort of float needle.
There are two different idle plug sizes - you can't interchange them.
This is a work in progress. You can sort the table by clicking on the headings.
Both sides should have the same carb ID! Mixing and matching bodies may have been done by a previous owner and may result in problems.
Once you are done click here to go back to the carb cleaning page if that's where you came from.
| Year | Model | Country | ID | Floats | Fuel Feed | Vacuum Petcock? |
Accel. Pump? |
|---|---|---|---|---|---|---|---|
| 1978 | CX500 | USA | VB26A-B | No | No | ||
| 1978 | CX500 | Australia | VB36A, VB36B, VB36C | No | No | ||
| 1978 | GL500 Wing | VB36AA, VB36AC | No | No | |||
| 1978 | GL400 Wing | VB35AB, VB35AC | |||||
| 1979 | CX500 | USA | VB26A-B/C | ||||
| 1979 | CX500Z | Australia | VB36B, VB36C | ||||
| 1979 | CX500 Deluxe | USA | VB23A | ||||
| 1979 | CX500 Custom | USA | VB27A | ||||
| 1980 | CX500 Deluxe | USA | VB28A-B | ||||
| 1979 | GL400 Wing (Z) | VB38AC, VB38AA | |||||
| 1979 | GL500 Wing (Z) | JDM | VB38AA | ||||
| 1980 | CX500 Custom | USA | VB25A-B | ||||
| 1980 | GL400 Custom Wing (A) | VB38AC | |||||
| 1981 | CX500 Deluxe | USA | VB28A-C | ||||
| 1981 | CX500 Custom | USA | VB25A-C | ||||
| 1981 | GL400 (B) | VB35BB | |||||
| 1981 | GL400 Custom Wing (B) | VB38BA | |||||
| 1981 | GL500 Custom Wing (B) | VB37AF | |||||
| 1982 | CX500 (C) | England, Europe, Germany | VB36A-F?E? | ||||
| 1982 | CX500 Custom (C) | USA | VB25A-D | Yes | Yes | ||
| 1982 | CX500 Custom (C) | Canada | VB25B-C | ||||
| 1982 | CX500 Custom (C) | Denmark, England, Europe, Italy, Northern Europe | VB37A-E | ||||
| 1982 | CX500 Custom (C) | Germany, 27ps version | VB39B-B | ||||
| 1982 | CX500 Custom (C) | Germany, full power | VB39A-B | ||||
| 1982 | CX400EC Sports | VB1BAA | |||||
| 1982 | CX500EC Sports | England, Europe, France, Italy, Switzerland | VB1AA-A | ||||
| 1982 | CX500EC Sports #1 | Germany | VB1AB-A | ||||
| 1982 | CX500EC Sports #2 | Germany | VB1AC-A | ||||
| 1981 | GL500 | USA | VB29A | Yes | |||
| 1982 | GL500 | USA | VB29A? | Yes | |||
| 1983 | CX400C Custom | VB2CAA | |||||
| 1983 | GL650 | USA | VB2AA | ||||
| 1983 | GL700 Interstate | Japan | VB2BG | ||||
| 1983 | CX650C Custom | USA | VB2AC or VB2AB | Yes | Yes | ||
| 1983 | CX650 Eurosport | Australia | VB2AB |
In 2019 the server has had to double in capacity to support the growing site... please consider dropping the site a donation to help cover the costs! Check out our Patreon for support options, buy a shirt, buy our apps, use my NordVPN affiliate link to sign up to their service or donate via Paypal:
| Paypal $5 link ->> | |
| Paypal $10 link ->> |