CB650SC/Specifications: Difference between revisions

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|-
|-
!Displacement
!Displacement
|655 cc
|655 CC
|-
|-
!Power
!Power (net)
|72 bhp @ 9500 rpm
|53.7 kW (73 PS) (72 bhp) @ 9500 RPM
|-
!Torque
|54 Nm (40 ft-lb) @ 8000 RPM
|-
|-
!Dry Weight
!Dry Weight
|197.0 kg (434.4 lbs)
|197.0 KG (434.4 lbs)
|-
!Curb Weight
|210 KG (463 lbs)
|-
!Payload Weight
|150 KG (331 lbs)
|-
!Gross Weight
|360 KG (794 lbs)
|-
|-
!Top Speed
!Top Speed
|233.4 km/h (145.0 mph)
|233.4 KM/H (145.0 mph)
|-
|-
!1/4 Mile
!1/4 Mile
|12.13 s @ 174.50 km/h (108.43 mph)
|12.13 s @ 174.50 KM/H (108.43 mph)
|-
|-
!Wheelbase
!Wheelbase
|1,461 mm (57.5 in)  
|1,461 MM (57.5 in)  
|-
|-
!Seat Height
!Seat Height
|790 mm (31.1 in)
|790 MM (31.1 in)
|-
!
|
|-
|-
!
!Net power-weigth ratio (w/ driver)
|
|188.4 WATT/KG (85.5 watt/lb) (0.115hp/lbs)
|-
|-
!
!Net weight-power ratio (w/ driver)
|
|5.3 kg/kW / 3.9 kg/PS (8.7 lbs/hp)
|-
|-
!
!Fuel tank capacity
|
|12.9 liter / (3.4 U.S. gal) (2.8 imp. gal)
|}
|}
<ref>1985 Honda CB 650 SC Specs on Ultimate Specs https://www.ultimatespecs.com/motorcycles-specs/honda/honda-cb-650-sc-1985</ref>
<ref>1985 Honda CB 650 SC Specs on Ultimate Specs https://www.ultimatespecs.com/motorcycles-specs/honda/honda-cb-650-sc-1985</ref>
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|2.2L
|2.2L
|}
|}
===Timing Chain===
* Number of links: 92
* 3+4/3x4 Cam Shaft Timing Chain
* D.I.D. Chain code: SCA0412A SV/144
==Carbs==
Keihin VE54A
{| class="wikitable"
!Item
!Spec
!Note
|-
|Venturi || 29.2mm (1.15in) ||
|-
|Type || VE ||
|-
|Style || CV || (constant velocity)
|-
|Float || 18.5mm +/-1mm (0.61in +/-0.04in) || Non-adjustable
|-
|Idle || 1,100RPM +/-100RPM ||
|-
|Throttle grip free-play || 2-6mm (0.08-0.24in) ||
|-
|Fast Idle || 3,000RPM +/-500RPM || choke on
|-
|Needle marking || "79K" ||
|-
|Choke type || By-starter ||
|}
===O-rings===
{| class="wikitable"
!Desc. || Part Number || I.D. || Thickness || Number
|-
!Small, (fuel tubes)
| || 6mm || 1.8mm || 4x
|-
!Large, (fuel tee)
| || 7mm || 2mm || 2x
|-
!Thin, (breather tube tees)
| || || || 4x
|-
!Cly. head to boot couplings
|91306-ME5-003 -></br>91306-HA0-003 || 33.7mm || 2.6mm || 8x
|}
==Carb Parts==
* Keyster kit (N.A.): K-893HK (http://www.siriusconinc.com/products/detail/2685)
* Keyster kit (E.U.): KH-1195N (https://www.3pracing.com/en/keyster-carburetor-rebuild-kit-kh-1195n-for-honda-cbx-650-1983-1985.html)
{| class="wikitable"
!Part/Jet || Size || OEM P/N || Keyster P/N || Series || Length || Diameter (thread) || Diameter (head)
|-
!Main
|#115 || 99101-393-1150 -> </br> 99101-GHB-1150 -> </br> 99101-MAZ-1150
| KHM-110115 || 99101-393 or KR28 || 8mm || 4.9mm || 6mm
|-
!Slow
|#35 || 99103-MA4-0350 -> </br> 99103-GY6-0350
| KHS-29C035|| <s>N424-21(N424/21) or K26</s> || <s>28mm</s> || 5.9mm || 4.9mm
|-
!Needle Holder
| || 16165-449-771 ||
|-
!Needle Set</br>(Canada)
| 79K || 16012-ME5-621 -> </br> 16012-ME5-671 ||
|-
!Needle Set</br>(Europe)
| 79P (#D476) || 16012-ME5-611 || KHD-0476Z
|-
!Idle Screw Set
| || 16016-ME5-671 -> </br> 16016-KR3-671 -> </br> 16016-MY6-770 ||
|-
!Idle Screw Set</br>(Europe)
| || 16016-MA6-003 || KHSS-138
|-
!Float valve
| || 16165-413-751 || KVN-16N00
|-
!Needle Shims
| || || || || ID: 3.2mm || OD: 7mm || thickness: 0.5mm
|}
{| class="wikitable"
!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
|}
==Exhaust==
===Sealing===
* Graphite coupler seal x1 - 18392-MG7-750 - 42.8 x 48.6 x 20mm
* Copper crush rings x4 - - 43.2 x 34.8 x 4.2mm


==Wheels==
==Wheels==

Latest revision as of 18:19, 12 August 2025

Type Standard
Frame RC13 (shared with CBX650E)
Displacement 655 CC
Power (net) 53.7 kW (73 PS) (72 bhp) @ 9500 RPM
Torque 54 Nm (40 ft-lb) @ 8000 RPM
Dry Weight 197.0 KG (434.4 lbs)
Curb Weight 210 KG (463 lbs)
Payload Weight 150 KG (331 lbs)
Gross Weight 360 KG (794 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)
Net power-weigth ratio (w/ driver) 188.4 WATT/KG (85.5 watt/lb) (0.115hp/lbs)
Net weight-power ratio (w/ driver) 5.3 kg/kW / 3.9 kg/PS (8.7 lbs/hp)
Fuel tank capacity 12.9 liter / (3.4 U.S. gal) (2.8 imp. gal)

[1]

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

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
  1. ↑ 1985 Honda CB 650 SC Specs on Ultimate Specs https://www.ultimatespecs.com/motorcycles-specs/honda/honda-cb-650-sc-1985
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