1994 Yamaha TZ125F GP Racebike

A fellow once shook his head, looking at the bike at the racetrack, and murmured, "There's absolutely nothing on this thing that isn't involved in going fast!"


SPECIFICATIONS
Overall length x width x height
Wheelbase
Minimum ground clearance
Dry weight 		1,800 x 510 x 1,010 mm
1,220 mm
110 mm
70kg
Engine type
Induction
Cylinder arrangement
Displacement
Bore x stroke
Compression ratio 		Water-Cooled 2-Stroke
Crankcase Reed Valve
Inclined Single
124.9 cc
56.0 x 50.7 mm
16.2:1
Starting system
Transmission oil capacity
Fuel tank capacity
Fuel type
Engine oil
Carburetor
Ignition system
 Push start
0.3L
13.0 L
elf ProPlus (108 M octane leaded)
elf HTX 976 ( 30:1 premix )
Mikuni TM38SS
C.D.I
Frame type
Caster / Trail

Tire size (front / rear)
Brake type (front / rear)

Suspension type (front / rear)
 Aluminum Deltabox
22.2 degrees / 81mm
(standard; variable)
95/70R17 / 120/70R17
Hydraulic single disc /
Hydraulic single disc
Telescopic / Swing arm
Top Speed Achieved (13,750 RPM,
standard internal gearing,
15/38 final gearing) 		194km/h

Modifications
  • John Hjelm +6cm Extended Rearsets
  • Heavier fork and shock springs
  • "Double-bubble" Windscreen
  • Lap Timer

    • Planned Modifications

  • Yamaha TSI Porting Specifications
  • Total-Loss Battery Ignition
  • Water Injection system
  • Billet Cylinder Head
  • Resonant Airbox