Honda FT500 Ascot Randakk Master Carb Overhaul Kit®

World’s Best FT500 Kit!

100-1227 ft500 master carb kit 03

This kit is proprietary to Randakks…you won’t find this available anywhere else at any price. 

Randakk Master Carb Overhaul Kit(R) includes everything you need (and nothing you don’t!) for a comprehensive FT500 carb overhaul.

FT500 Model Identification

  • All 1982 – 1983 FT500 Ascot (single cylinder) with original carbs will require our 100-1227 kit.

This kit is Honda FT500 Ascot is for single cylinder Ascots only. Do not purchase if you have a twin-cylinder Ascot (VT500).

Kit Components

100-1227 ft500 master carb kit 01 contents

Viton O-rings:

1x  Fuel (idle) mixture screw (2.8 x 1.1mm)

1x  Float bowl drain screw (4.3 x 1.3mm)

1x  CV Slide Top Limit Plug (6.9 x 1.3mm)

1x  Accelerator pump passage at float bowl (5.0 x 1.3mm)

1x  Heat Insulator (intake-to-cylinder) oring (40.0 x 2.6mm)

1x  Intake-to-carb oring (40.0 x 2.6mm)


1x Fiber-reinforced float bowl gasket – (Constructed of superior Viton material to resist the components of modern gasoline.)

Miscellaneous Parts:

1x  Air Cutoff Valve Overhaul Kit

1x  Accelerator Pump Overhaul Kit

1x  idle mixture screw washer

3x  float bowl screws (4 x 16mm)

1x  1mm cotter pin for accelerator pump linkage – 2 supplied (simple item, but hard to find elsewhere)

2x  high quality, plated M3 x 6mm (0.5 pitch) panhead screws for securing choke butterflies

Parts Total: 21 total pieces

All O-rings Are Not The Same!

The round o-rings in each Master Kit are made of Viton rather than ordinary nitrile (Buna-N) as found in other aftermarket carb kits. One good case of severe engine overheating can ruin the carb o-rings found in ordinary kits? Randakk’s o-rings are the best available!


Viton is superior to nitrile in terms of:

  • Heat tolerance (400 degrees F vs. 250 degrees F)
  • Compression set
  • Permeation

We even include rebuild kits for the air cut-off valves and accelerator pump as required for each application.

cx500 air cut off valvecx500 accelerator pump


You will need access to good reference material for a successful rebuild, such as 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!

Quick Notes:

No jets or jet needles are supplied with our kits. These can normally be cleaned and reused. “Dress” the jet tower cavities with crocus cloth or similar to remove oxidation and burrs, then use a lubricant like Vaseline to insert the main jets.

No float valve/seat assemblies in our kit.

No fuel filter is included. But it would be a crime to redo your carbs and not take prudent measures to ensure a pure fuel supply!

Mike Nixon recommends a critical inspection that requires removal of the choke butterfly screws. The staked OEM choke butterfly screws are very difficult to re-use. You will need to use some medium strength Lock-Tite to secure our replacement screws.

Considerable skill is required to install this high-quality kit correctly. Since Randakk’s cannot 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.

Not sure can handle your own rebuild? Then, check out Randakk’s Approved Carb Rebuilder Program.

To read more reviews on this and other products visit our Review Site,

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