MKS-DCIR Kill Switch Reverser adapts CT110 handlebar control to CT90
Replacement CT110 handlebar controls are readily available. For instance, Dr. ATV sells the right hand control with kill switch for the CT110. CT110 controls fit the CT90, however the kill switch wiring is wrong for the CT90.
Either your bike blows fuses, or if you connect the switch ground to power, the kills switch function is inverted. The Pardue Brothers MKS-DCIR kill switch adapter reverses the CT110 “ground-to-kill” circuit.
This is the proper, safe fix for 6 Volt CT90’s. The adapter is simple to install in the headlight bucket. No modifications to the wiring or switch are needed. It’s ready to plug-in-and-ride with three color-matched wires and matching connectors.
The MKS-DCIR adapter is engineered to last a lifetime with matching Honda connectors from Vintage Connections, and color-coded wires from Rhode Island Wiring Service. Every MKS-DCIR adapter is hand-assembled and tested in our Florida shops.
*Note: if you are wiring a clone engine into your CT90 or S90, your bike needs a different kill switch adapter for the CDI system, which we also make in 6 and 12 Volt versions.