Honda
CX500 and Variants
Parts
Now
Available: Ride
Like a Pro V - Exceptional Rider Instruction Video!
click
here
The
CX500 and its cousins are terrific bikes. These are rugged
little beasts which are loved by a large base of enthusiasts.
I've owned one of these (GL500) and like them a lot. My good
friend - the late Dick Smith (aka Dick in Raleigh)
was a noted CX500 expert.
Slightly
less sexy than a Ducati 916, but their pedestrian looks are
offset by legendary reliability. These have long been favored
by couriers who need a trusty bike that handles well for urban
warfare. With
this series, Honda proved that it could build a better transverse
twin than Moto Guzzi, then moved on to other pursuits. Many
(including me) regret that Honda didn't continue this line.
Well cared for examples will last forever!
Please
read:
Disclaimers
Testimonial:
"Hi
Randall, Just wanted to let you know I've installed your CX
Master Carb Kit on the 650 Silverwing (Version C). Everything
went off without a hitch. The bike is running great. Like you
said in your ad, the kit contains everything you need. Combined
with the instruction booklet by Mike Nixon it was pretty much
foolproof. Thanks again for the great product."
Rick
Saulnier - Memramcook, New Brunswick, Canada
More
Testimonials: click
here
More
cool stuff: click
here
Randakk's
Own CX500
and Variants
Master Carb Overhaul Kit
WORLD'S
BEST CX500
KIT!
A, B & C Versions Available Now!
My
CX500 (and variants) Master Carb Overhaul Kit includes
everything you need (and nothing you don't need!) for a comprehensive
carb overhaul on carbureted CX500, CX650, GL500 and GL650 models
produced during 1978-1983 (see Fitment Chart below).
This
kit is proprietary to Randakk's...you won't find this available
anywhere else at any price. I sourced the best available parts
from 3 continents and combined them in a unique combination that
represents real value.
And
unlike other kits on the market, my kit even includes those pesky
carburetor body side-to-side sealing o-rings that seem to give
so much trouble on units that have been parked for awhile (details
below).
Note:
The round o-rings in each of my Master Kits are made of Viton
rather than ordinary nitrile (Buna-N) as found in other aftermarket
carb kits. Viton is superior to nitrile in terms of:
- Heat
tolerance (400 degrees F vs. 250 degrees F)
- Compression
set
- Permeation
Did
you know that one good case of severe engine overheating can ruin
the carb o-rings found in ordinary kits? My o-rings are the best
available! Viton Proof here.

Randakk's
CX500 Master Carb Overhaul Kit -Version B shown
(Version
C has similar components)
(Version
A omits accelerator pump in lower
right of picture)
Unlike
ordinary aftermarket kits, each Randakk kit provides everything
listed for both carbs + other items required for splitting and
re-joining the carb assembly to replace the cross carb main fuel
transfer tubes as well as the accelerator circuits. I even include
rebuild kits for the air cut-off valve and accelerator valve as
required for each application.
Only the highest quality items are included. This kit has been
thoroughly tested. This collection represents the best value available
in the market. Trust me, you will need everything in this kit
to do a proper overhaul of your carbs.
Here's
what you get:
Viton
O-rings:
- 2
- fuel (idle) mixture screw (2.8 x 1.1 mm)
- 2
- float bowl drain screw (4.2 x 1.3 mm)
-
2 - CV Slide Top Limit Plug (6.9 x 1.3 mm)
- 1
- Accelerator pump passage at float bowl (5.0 x 1.3 mm)*
- 2
- Main Fuel Transfer Tubes (5.8 x 2.0 mm)
- 2
- Accelerator Fuel Transfer Tubes (3.8 x 2.0 mm)*
- 2
- Intake Manifold (40 x 2.6 mm)...slightly thicker cross section
than the OEM specified o-ring for better fit and function
*
as required
Float
Bowl Gaskets - 2 of each:
- Constructed
of superior Viton material to resist the components
of modern gasoline.
Miscellaneous
Parts:
- 2
Air Cutoff Valve Overhaul Kit (unique fitments for A, B &
C versions)
-
1 Accelerator Pump Overhaul Kit (unique fitment for B & C
versions only)
- 2
idle mixture screw washers
- 6
float bowl screws (4 x 16 mm)
- 1
mm cotter pin for accelerator pump linkage - 1 supplied (simple
item, but hard to find elsewhere)
- 2
Viton rubber blanking plugs - cover access to idle
fuel jet (Version A requires a different size plug than Versions
B & C)
Parts Count:
- Version
A - 29 total parts
- Version
B - 33 total parts
- Version
B - 33 total parts
Special
Bonus:
Through
an exclusive arrangement, my CX500
and Variants
Master Carb Overhaul Kit is available in a combination
with Mike Nixon's brilliant booklet, Cleaning the CX500
Carburetor. This 35 page booklet is a must read! Much
better explanation and photos than the official Honda Workshop
Manual. 110+ sharp photos and illustrations! Trust me, you'll
be very glad you have this gem. The retail value (with shipping)
for this wonderful booklet is $34.55
This
booklet alone and other neat Instructional Guides by Mike
Nixon are available here at Mike's Book
Nook!
I
also recommend that you refer to the official Honda Factory Workshop
Manual. There is some critical information there on rejoining
and aligning the carb bodies to prevent binding of the throttle
and choke shafts...very important!
My
Master Kit includes all the o-rings needed for renewing the fuel
transfer tubes (main and accelerator).
Note:
No jets or jet needles are supplied with my kits. My experience
is that these can normally be cleaned and re-used. Aftermarket
needles are not sized as accurately as the OEM needles and may
introduce lean / rich problems where none existed. Unless your
needles are worn or bent, I recommend re-using them. If you try
to buy jet needles from Honda, you'll discover that they are only
available as a set which includes the CV slide, cap and jet needle.
The price will make you faint! If you need jets, buy aftermarket
kits such as those from K&L or spring for the genuine Honda
bits.
These
carbs have non-removable float seats (a mistake by Honda in my
opinion!). There are no float needles in my kit. Many aftermarket
rebuild kits include float needles of dubious quality. In the
past, there have been many problems with these aftermarket items.
Most of the problems related to the aftermarket float needles
being incorrectly sized (too short) resulting in unreliable (or
nonexistent) fuel shutoff. Some are OK. I've not included them
in this kit, because the rubber tips and seats on the OEM item
will last nearly forever and can usually be cleaned and reused.
So,
I've left float needles out of my kit to keep the cost down and
give you a choice on what to buy if you think new ones are needed.
If
you need new float needles, you can buy the OEM item and not have
a worry. The Honda part number is 16155-413-751.
You will need to order 2 of these. Or, take a slight gamble and
go with aftermarket float needles which are available at reasonable
cost from numerous suppliers.
Considerable
skill is required to install this high quality kit correctly.
Since I can't control this important variable, there is no warranty
on these. Rest assured that they are of the highest quality materials
and workmanship. Each kit has been carefully packed and inspected
to ensure that all items are included.
Warning:
Please open the package very
carefully when it arrives. Many of the parts are very small so
take appropriate precautions. If you chose to open the package
in the dark over your gravel driveway, after 1 or 12 beers, please
don't later complain that you are a "few o-rings short." Seriously,
do be careful when you open the package!
CX
Model Identification
- Early
CX500s have wide-spaced, parallel carbs with no accelerator
pump. The carbs are spaced at 160 mm on center. These take Randakk
Master Kit A.
-
Later CX500s with accelerator pumps (spaced at 160 mm on center)
and all GL500s. All GL500 carbs are close-spaced at only 100
mm on center and the carbs are parallel. These take Randakk
Master Kit B
-
All 650s have carbs mounted on an angled bracket (not parallel).
These take Randakk Master Kit C.
|
Randakk
Master
Kit Version
|
Fitment
Chart
Summary
of Models Covered
Additional
Fit Details here
|
|
A
|
All
CX500s without accelerator pump
A
Version Available Now!
|
|
B
|
All
CX500s with accelerator pump
All
GL500s
B
Version Available Now!
|
|
C
|
All
650s (both CX and GL versions)
C
Version Available Now!
|
For
obvious reasons, Turbo models of these bike are not supported...those
are fuel injected!
Not
sure can handle your own rebuild? For information on Randakk's
Approved Honda Carb Rebuilder Program
click
here
See
also: Additional Fit Details courtesy of good friend -
the late Dick Smith (aka Dick in Raleigh) who was
a noted CX500 - click
here
CX
Master Carb Overhaul Kit - see Fitment Chart above
A,
B & C Versions Available Now!
International
orders: Read this and
please contact me before placing an order! I
will send special ordering instructions. PayPal "Add Item
to Cart" buttons are for domestic United States of America
customers only.
For
Versions With Mike Nixon's Booklet:
|
|
CX
Master Carb Overhaul Kit - Version A
(see Fitment Chart above)
"COMBO"
WITH Mike Nixon's Cleaning the CX500 Carburetor
Booklet (35 pages)...Highly Recommended!
DO
NOT ORDER IF YOUR CX500 HAS AN ACCELERATOR PUMP!
Price:
$104.55
each including US domestic shipping and handling.
I
usually ship within 48 hours of receiving your order.
|
|
CX
Master Carb Overhaul Kit - Version B
(see Fitment Chart above)
"COMBO"
WITH Mike Nixon's Cleaning the
CX500 Carburetor Booklet (35 pages)...Highly
Recommended!
Price:
$124.55
each including US domestic shipping and handling.
I
usually ship within 48 hours of receiving your order.
|
|
CX
Master Carb Overhaul Kit - Version C
(see Fitment Chart above)
"COMBO"
WITH Mike Nixon's Cleaning the
CX500 Carburetor Booklet (35 pages)...Highly
Recommended!
Price:
$124.55
each including US domestic shipping and handling.
I
usually ship within 48 hours of receiving your order.
|
International
orders: Read this and
please contact me before placing an order! I
will send special ordering instructions. PayPal "Add Item
to Cart" buttons are for domestic United States of America
customers only.
For
Versions Without Mike Nixon's Booklet:
|
|
CX
Master Carb Overhaul Kit - Version A
(see Fitment Chart above)
WITHOUT
Mike Nixon's Cleaning the CX500 Carburetor
Booklet (Master CXVariant Overhaul Kit alone...no
Nixon Booklet)
DO
NOT ORDER IF YOUR CX500 HAS AN ACCELERATOR PUMP!
Price:
$69.95
each including US domestic shipping and handling.
I
usually ship within 48 hours of receiving your order.
|
|
CX
Master Carb Overhaul Kit - Version
B (see Fitment
Chart above)
WITHOUT
Mike Nixon's Cleaning the CX500 Carburetor
Booklet (Master CXVariant Overhaul Kit alone...no
Nixon Booklet)
Price:
$89.95
each including US domestic shipping and handling.
I
usually ship within 48 hours of receiving your order.
|
|
CX
Master Carb Overhaul Kit - Version
C (see
Fitment Chart above)
WITHOUT
Mike Nixon's Cleaning the CX500 Carburetor
Booklet (Master CXVariant Overhaul Kit alone...no
Nixon Booklet)
Price:
$89.95
each including US domestic shipping and handling.
I
usually ship within 48 hours of receiving your order.
|
International
orders: Read this and
please contact me before placing an order! I
will send special ordering instructions. PayPal "Add Item
to Cart" buttons are for domestic United States of America
customers only.
^top^
Randakk's
CX Float
Bowl Gasket Set (included in CX Master
Kits)
CX
Float Bowl Gaskets - Set of 2
Highest
quality CX
Float Bowl Gasket Set.
- Constructed
of superior Viton material to resist the components of
modern gasoline.
- Fits
all CX models (and variants) per above fitment chart
- Randakk
exclusive - I also include the very necessary accelerator
pump passage oring (5.0 x 1.3 mm - Viton) with each order!
CX
Float Bowl Gaskets - Viton
Note:
I'm selling these in a set of 2 gaskets.
Price:
$14.85 per set of 2 including US domestic shipping and
handling.
International
orders: Read this and
please contact me before placing an order! I
will send special ordering instructions. PayPal "Add Item
to Cart" buttons are for domestic United States of America
customers only.

I
usually ship within 48 hours of receiving your order.
^top^
For
more information on the use of material from this website, click
here.