Fuel System
The Honda CT90 fuel system utilizes a unique Keihin slide carburetor and petcock in one. The fuel tank feeds the petcock through the fuel line running through the internal framing. With the carburetor and petcock being a single unit, it is recommended to rebuild the petcock, carburetor, and clean out the gas tank simultaneously as all 3 are slightly disassembled to get to any one of them. The CT90 carburetor also features a unique altitude knob that supplies more air to the mixture when above 6,000 feet above sea level.
- How to Adjust the Idle Speed and Air/Fuel Mixture on the Honda CT90 / Trail 90
- Installing Common Motor Angle Boot Pod Filters on the Honda CT90 / Trail 90
- Replacing Fuel Lines on the Honda CT90 / Trail 90
- What fuel should I use in my CT90 / Trail 90?
- What is the carburetor float height for my Honda CT90 / Trail 90?
- What are the carburetor stock size jets for my Honda CT90 / Trail 90?
- What is the fuel capacity of a Honda CT90 / Trail 90?