CB650SC/Specifications
| Type | Standard |
|---|---|
| Frame | RC13 (shared with CBX650E) |
| Displacement | 655 cc |
| Power | 72 bhp @ 9500 rpm |
| Dry Weight | 197.0 kg (434.4 lbs) |
| Top Speed | 233.4 km/h (145.0 mph) |
| 1/4 Mile | 12.13 s @ 174.50 km/h (108.43 mph) |
| Wheelbase | 1,461 mm (57.5 in) |
| Seat Height | 790 mm (31.1 in) |
Common Threads and Sizes
| Item | Size | # needed | Note |
|---|---|---|---|
| Engine Oil Drain (sump) bolt | M12x1.5mm | 1 | |
| Short hydralic banjo bolt | M10x1.25mm | 6 | Brakes and clutch |
| Double hydralic banjo bolt | M10x1.25mm | 1 | Brakes |
Engine
Oil
| Weight | Grade | w/ filter | w/o filter |
|---|---|---|---|
| SAE 10W40 | API SE-SF | 2.5L | 2.2L |
Carb Jets
- Main: #115
- 991013-931-150 -> 99101G-HB1-150 -> 99101M-AZ1-150
- Slow: #35
- 99103M-A40-350 -> 99103G-Y60-350
- Needle Holder:
- 16165-449-771
- Needle Set:
- 16012-ME5-671
- Idle Screw Set:
- 16016-ME5-671 -> 16016-KR3-671 -> 16016-MY6-770
| Stage | Main | Slow | Needle shims 0.5mm (per each carb) | Note |
|---|---|---|---|---|
| 0 (OEM) | #115 | #35 | 0 | Stock |
| 1 | #118 | #35 | 1 | stock engine and with stock air intake and stock exhaust system |
| 2 | #120 | #38 | 1 | stock or lightly modified engine with improved air intake using stock air intake box and baffled aftermarket exhaust or lightly modified exhaust |
| 3 | #125 | #38 | 2 | stock or lightly modified engines with individual air intakes and baffled aftermarket exhaust system |
| 4 | #125 | #40 | 2 | modified engines with individual air intakes and non-baffled exhaust system (racing use only) |
| 5 | #130 | #40 | 2 | |
| Pro | #118, #120, #122, #125 and #128 | #38, #40 | 2 | experimenting with different engine, air intake and exhaust system |
- Needle Shims: ID: 3.2mm, OD: 7mm, thickness: 0.5mm
- Slow jet: Length: 28mm, Diameter (thread): 5.9mm, Diameter (head): 4.9mm
- Main jet: Length: 8mm, Diameter (thread): 4.9mm, Diameter (head): 6mm
Wheels
Construction: Cast Alloy
Tires
| Position | Size |
|---|---|
| Front | 100/90-19 (OEM: 3.50-19) |
| Rear | 130/90-16 |
Brakes
| Position | Type | Number | Size |
|---|---|---|---|
| Front | Disc | x2 | |
| Rear | Drum | x1 |
Suspension
Forks (Front)
- Showa
- Diameter: 39mm
- Type: leading-axle
- Adjust: air-adjustable
- Bushings: dual Syntallic
- Anti-dive: TRAC
Shocks (Rear)
- VHD
- Type: rebound damping
- Adjustable: four-way
- ↑ 1985 Honda CB 650 SC Specs on Ultimate Specs https://www.ultimatespecs.com/motorcycles-specs/honda/honda-cb-650-sc-1985