Are you searching for factory technical information? Here is where you will find the information you are looking for. Just click on the links below to download the documents. We recommend that you print and bind them for easy reference.
Factory Service Manuals
Honda CT90 K0 - K7 (1976) Factory Service Manual
Honda CT90 1977 - 1979 Factory Service Manual
Wiring Diagrams
CT90 K0 (before frame serial number 000001A)
CT90 K0 (after frame serial number 000001A)
Tune-Up and Specifications
Honda CT90 K0 - K3 Inspection and Adjustment Guide
Honda CT90 K4 & Later Inspection and Adjustment Guide
Honda CT90 Manual Cam Chain Tensioner Instructions
Honda CT90 Service Data and Service Limits
Honda CT90 Torque Specifications
Addendums & Supplements
Honda CT90 K8 (1977) Supplement
Honda CT90 1978 Emissions Addendum