COMMON MOTOR COLLECTIVE
Carburetor Rebuild Kit | Honda CT90 / Trail 90 (K1-K8)
Carburetor Rebuild Kit for Honda CT90 / Trail 90 (K1-K8)

Carburetor Rebuild Kit | Honda CT90 / Trail 90 (K1-K8)

Your Price: $30.00
In Stock
CMC Part Number:6117
  • Replaces OEM Part:16012-102-004, 99114-077-0650, 99124-303-0350, 99145-03504, 99114-077-0620, 16011-355-004, 16011-070-004, 16012-102-004, 16010-102-305, 16016-046-004, 93500-04008-0A
  • Qty:Sold Individually

Optional Add-On Parts:
Altitude Knob Gasket Kit (#6157) (+$8.00)
Brass Filter Screen (#6022) (+$13.00)
Carburetor Float (#6029) (+$15.00)

Part

Carburetor Rebuild Kit for Honda CT90 - "Trail 90" motorcycles 

This Part Fits the Following Honda Models

  • CT90 K1-K8 

Why You Need This 

This carburetor kit is the result of extensive research testing and is designed to fit the OEM Keihin carburetor found on your 1969 - 1977 Honda Trail 90 (K1 - K8). If the brass parts inside the carburetor of your vintage Honda CT90 / Trail 90 are beyond a good cleaning and gasket change, it's time for a rebuild. Our carburetor rebuild kit is the most complete and comprensive on the market. This CT90 / Trail 90 carb rebuild kit fits what is known as the "two screw float bowl" designed Keihin carburetor, which  has a rectangular shape float bowl and uses two screws to retain the bowl to the carburetor body. The float will be made of brass; a plastic float may indicate an aftermarket carburetor. 

NOTE 1: There are many aftermarket clone carburetors for the Honda CT90 floating around the market these days, this kit is ONLY for the OEM Keihin Honda carburetor with 2 screw float bowl

NOTE 2: Honda CT90 K0 (4 screw float bowl) as well as CT90 '78-'79 (round float bowl) each use different carburetor designs which are NOT COMPATIBLE with this kit. 

IMPORTANT: If your main and idle jets are a different size that what is included in the rebuild kit, it is advised to reuse them. There were many jetting changes from the factory during production on the CT90 carburetors so it is best to start with the original size before making any changes.  Emulsifier tube / discharge nozzle will need to be re-used.  

Altitude knob gaskets and carburetor float are not included in the kit but are available as optional add-ons.

Kit Contents

Jets, Needles, and Hardware:

  • Slide Needle with Retaining Clips 
  • Float Needle and Seat 
  • Float Needle Sealing Washer 
  • Stainless Float Bowl Screws & Washers
  • Petcock lever wavy spring washer
  • Idle Mixture Screw with Spring 
  • Idle Speed Screw with Spring 
  • Pilot/Idle Jet - Size #35 
  • Main Jet - Size #65 

O-rings / Gaskets:

  • Float Bowl Gasket 
  • Slide Top Cap Gasket 
  • Emulsifier Tube O-Ring 
  • Float Bowl Drain Plug O-Ring 
  • Altitude Knob O-Ring 
  • Petcock Filter Screen O-Ring 
  • Petcock Multi-hole Gasket 
  • Carburetor to Intake Manifold O-Ring 

Installation Tip:

Thoroughly clean each part of the carburetor before reassembly. The emulsifier tube has an o-ring in the middle of the body, make sure to replace it and lubricate it during installation. Use a non-metallic punch to press it in place. Set float height to 20 mm and start with the slide needle in the middle position for preliminary tuning. 

This Carburetor Rebuild Kit Fits these Honda Motorcycles
196919701971197219731974197519761977
CT90CT90K1CT90K2CT90K3CT90K4CT90K4CT90K5CT90K6CT90K7CT90K8

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