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(KZ) KK2

For the KZ class

An engine full of new solutions.

The main innovations are:

  • Architecture conceived to keep the overall dimensions and weights to a minimum.
  • Changed crankcase cylinder position.
  • Separate lubrication between gearbox and primary transmission.
  • Water-cooled gearbox to lower the temperature of the lubricating oil and to contain the amount of oil.
  • Dismountable head assembled by interference to improve heat exchange.
  • New crankshaft with connecting rod length 110.2 mm
  • New cylinder
  • Reed pack with new flow guide

Engine Information

Cilindrata 125 cc
Homologation 032-EZ-45
Category 125 KZ2/KZ1
Bore/stroke 54 x 54,43 mm
Max power n.d.
Max rpm 15000 rpm
Cooling Water
Ignition PVL
Transmission 6 speed gearbox
Clutch 5 dry disks
Inlet type  Reed Valve
Carburetor Dell’Orto VHSH 30
Connecting rod length 110.2 mm
Combustion chamber vol. Minimo 11 cc
Number of transfers 5
Number of exhaust ports 3
Main transfer opening n.d.
Height of secondary ports n.d.
Central pouring height n.d.
Discharge height n.d.
Expansion muffler Expansion
petrol mixture 4%
Dry weight 18 kg

homologation fiche

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Data Sheet

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