Honda Trailsport ST90 Motorcycles

1973 Trailsport 90 (ST90K0)

ENGINE
- The engine was a 89cc single cylinder with a 3-speed transmission and an automatic clutch
- Spark plug: D6HA
- Plug gap: .028
- Battery: 6N5.5-1D -- 6 volt
DRIVETRAIN
- Drive chain: #428 x 94
- Front sprocket: 15 T
- Rear sprocket: 40 T
CHASSIS / SUSPENSION / BRAKES
- N/A
DIMENSION
- N/A
OTHER
- Colors:
  - Tahitian Red
  - Mighty Green
- The "HONDA" was yellow-orange with a black outline
- There was a cylindrical tool box behind the seat
- The headlight nacelle (shell) was black and the shock springs were chrome
- The serial number began ST90-1000002.

ENGINE
- The engine was a 89cc single cylinder with a 3-speed transmission and an automatic clutch
- Spark plug: D6HA
- Plug gap: .028
- Battery: 6N5.5-1D -- 6 volt
DRIVETRAIN
- Drive chain: #428 x 94
- Front sprocket: 15 T
- Rear sprocket: 40 T
CHASSIS / SUSPENSION / BRAKES
- N/A
DIMENSION
- N/A
OTHER
- It came in only one color: Bright Yellow
- The "HONDA" decal was yellow with a black outline
- The stripe was black and orange
- There was a cylindrical tool box behind the seat
- The headlight nacelle (shell) was black and the shock springs were chrome
- The serial number began ST90-1100001.

ENGINE
- The engine was a 89cc single cylinder with a 3-speed transmission and an automatic clutch
- Spark plug: D6HA
- Plug gap: .028
- Battery: 6N5.5-1D -- 6 volt
DRIVETRAIN
- Drive chain: #428 x 94
- Front sprocket: 15 T
- Rear sprocket: 40 T
CHASSIS / SUSPENSION / BRAKES
- N/A
DIMENSION
- N/A
OTHER
- Colors: Candy Topaz Orange
- The "HONDA" decal was yellow with a black background
- There was a cylindrical tool box behind the seat.
- The headlight nacelle (shell) was now orange instead of black and the shock springs were black instead of chrome
- The serial number began ST90-1200004.