The Screamer 4 is the brand new engine model launched in 2023 to compete in the challenging KZ/KZ2 gearbox classes.
CIK Homologated, this racing machine benefits from the experience achieved in International KZ/KZ2 competitions with the Screamer III, packed in a lighter and tighter brand newly designed crankcase. The Screamer 4 boasts innovative cylinder concepts, performing solutions applied in the new generation OK/OKJ engines and sets a new benchmark in its class.
Technical information
- model: Screamer 4 – KZ/KZ2
- description: Single cylinder – 2 stroke
- class: CIK/FIA – KZ/KZ2
- bore: Ø 54,00mm
- max-bore: Ø 54,08mm
- stroke: 54,40mm
- displacement: 124,59cc
- ports: 5
- inlet-system: Reed Valve
- lubrication: Oil mixture
- ignition-system: Analogic
- transmission: 6 Speed Gearbox
- cooling-system: Water
- starter: Push Start
- carb-model: Dell’Orto VHSH 30
