CB900 Stats {
The CB900 Custom Chopper:

Made by me, for me, on my back porch. This is a true one-of-a-kind traditional frankenstein chopper. I used Honda parts whenever possible, aftermarket for the minor stuff, and plenty of custom-made parts.
  • Frame: CB900C '82, modified
  • Engine: CB900C '82, rebuilt
  • Carburetors: 34mm Mikuni, from '81? Suzuki GS1100E (I think)
  • Carb boots: Custom-made from 1.5" pool/spa hose
  • Carb reinforcement mount: custom-made
  • Exhaust: '93 CB750SC Nighthawk header tubes, with 1-3/8" OD tube tacked in after the underside bend
  • Wiring Harness: CB900C '82, minimal modifications (mostly for seat)
  • Fuse Box: custom made, under tank
  • Battery Tray: custom made, in/under swingarm
  • Front Seat: VF700C '87, re-covered
  • Rear Seat: VF700C '87, "interestingly" mounted
  • Fuel Tank: VT1100 '87-'94, repainted
  • Forward Controls: Mapam Restyling Universal, on custom-made mounts with custom-made linkages. One linkage piece pulled from some 1979 Suzuki, the other fabricated from a 1980 CB900C brake pedal.
  • High/Low Suicide Shifter: Custom, with skull on top
  • Swingarm, shaft & joint: GL1200 '84, U-joint shortened
  • Rear wheel and rotor: GL1200 '8?
  • Rear Brakes: CB900C '82
  • Final drive: GL1200 '8?
  • Rear Suspension: Suzuki VS750 12" shocks
  • Rear Fender: None, but it needs one
  • Triple Tree: GL1100 '81
  • Forks: VT750 '83
  • Fork Brace: GL1200 '85
  • Front Wheel and Rotors: VF1100C '83
  • Front speedo gear: VF1100C '84
  • Front Axle: VF1100C '83
  • Axle and caliper mount spacers: Custom-made
  • Front Brakes: VT700 '85
  • Handlebars: CMX450C '86 plus dogbone risers
  • Hand Controls: GL1100 or GL1200, don't remember. Shortened throttle sleeve for standard 7/8" grips.
  • Headlight/turn signal mount: Aftermarket
  • Headlight: GL1000 '76
  • Turn Signals: Aftermarket fluted bullet lights
  • Tacho and Speedo: Aftermarket 2.25" mechanical drive
  • Oil Cooler: '93 CB750SC Nighthawk
  • Dry weight: 600? pounds
  • Horsepower: 75hp at 8000 rpm (less HP, more torque)
  • Fuel Capacity: 5.0 US gal, including 1.0gal reserve
  • Engine Oil: 4.7 US qt
  • Transfer Case Oil: 0.6 US qt
  • Final Drive Oil: 0.2 US qt
  • Final Drive: 2.89:1
  • Primary drive: 2.04:1
  • Secondary Drive: 0.72:1 low, 0.62:1 high
  • Quarter-mile: low 13's (est)
  • Seat Height: 26 in
  • Wheelbase: 68.75 in
  • Ground Clearance: 4.5 in
  • Rake: 33 degrees by my measurement - 4.5 degrees over stock
  • Trail: 4.25 in
  • Compression Ratio: 8.8:1
  • Octane recommendation: (r+m)/2 method, 86 octane or better
  • Spark Plug gap: .9mm (.035in)
  • Valve Clearance (cold):
    • Intake: .127mm (.005in)
    • Exhaust: .20mm (.008in)
Replacement Parts:
  • Spark Plugs: NGK DPR8EA9 works fine. There's a compatible Autolite plug if you're really in a bind.
  • Oil Filter: Fram #6009. Available at Wal-Mart and most Auto stores.
  • Tires:
    • Front: 110/90-18
      Metzeler ME880 Marathon
    • Rear: 150/90-15
      Dunlop Elite II or Metzeler ME880 Marathon
}