Honda GL1100 Randakk Master Carb Overhaul Kit®

World’s Best GL1100 Kit!

100-1229 02 cover

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

This kit has been created using the same philosophy as our industry-leading GL1000 Master Carb Overhaul Kits.

Each kit provides everything listed for all 4 carbs + other items required for splitting and rejoining the plenum plus kits to rebuild all four air cutoff valves as well as the accelerator pump!

Only the highest quality items are included. The components in this kit have been thoroughly tested for fit and function – and represents the best value available in the market.

Trust us, you will need everything in this kit to do a proper overhaul of your carbs.

GL1100 Model Identification

  • All 1980 – 1983 GL1100 with original carbs will require our 100-1229 kit.

Kit Components

100-1229 01 contents

Viton O-rings:

4x  Fuel (idle) mixture screw (2.8 x 1.1mm)

4x  Float bowl drain screw (4.8 x 1.9mm)

4x  Large carb-to-plenum (air) O-ring (53.1 x 2.0mm)

4x  Intake manifold (40.0 x 2.6mm)

4x  CV Slide Top Limit Plug (6.9 x 1.3mm)

4x  Accelerator Pump Fuel Circuit Cross Tube (2.8 x 1.3mm)

4x  Main Fuel Circuit Cross Tube (5.8 x 2.0mm)

2x  Main Fuel Inlet Hose Barb (5.8 x 2.0mm)

1x  Carb #3 accelerator pump passage at float bowl (5.0 x 1.3mm) – (This is a “spare”. The accelerator pump kit also contains this O-ring).


4x  Fiber-reinforced float bowl gasket – (Constructed of superior Viton material to resist the components of modern gasoline.)

1x  Randakk’s exclusive improved Viton GL1100 plenum gasket

Petcock Rebuild Kit:

1x  Petcock disk

2x  Petcock-to-fuel tank seals

Special Carb-to-Plenum Fuel Seals:

2x  Large seals – (for carb #3 and #2)

2x  Small seals – (for carb #3 and #4)

Miscellaneous Parts:

4x  Air Cutoff Valve Overhaul Kits

1x  Accelerator Pump Overhaul Kit

11x  1mm Cotter pins for linkage – (simple item, but hard to find elsewhere)

5x  Special screws and lock washers in 2 lengths to rejoin the plenum halves –  (These are high-quality zinc-plated screws.)

4x  Idle mixture screw washers

Parts Total: 67 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!

We highly recommend pairing this kit with the GL1100 Carburetor Repair Guide Booklet, written by GL1100 guru Howard Halasz.

100-1186 rebuild booklet

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!

This kit includes everything you need to separate and rejoin the plenum: plenum gasket, special carb-to-plenum fuel seals (2 sizes), carb-to-plenum “air seals” as well as 5 high-quality screws in the correct lengths. If you don’t split the plenum and renew these critical parts during your overhaul, you may have regrets later.

While you are at it, you should replace your fuel hoses as these can sometimes disintegrate from the inside out and be a source of fuel contamination in the form of small rubber fragments. I recommend that you purchase a length of high-quality 1/4″ fuel injection hose locally. Don’t forget to flush your fuel pump. Debris can collect here as well.

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,

One thought on “Honda GL1100 Randakk Master Carb Overhaul Kit®

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  1. Hello! I have a 1975 GL1000 but it has 1980 or newer GL1100 carbs installed. How can I tell what year Carbs I have to ensure I purchase the correct rebuild kit?

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