Cylinder 1200ccm³ top-end JSM

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Cylinder 1200ccm³ top-end JSM

Cylinder JetSkiMann 1200ccm Stroker +16mm

Cylinder JetSkiMann 1200ccm Stroker +16mm is a premium component designed for engines based on platform Yamaha SuperJet and custom units with a capacity of up to 1200 cm³.
Designed for maximum performance in jet skis freestyle and freeride, combines precision CNC machining, premium casting technology and sports engineering.

The cylinder was developed to work with Stroker crankshaft +16 mmwhich gives the total piston stroke 84 mm with a diameter of 95 mm (Wiseco piston) - is a kit that delivers huge torque and power gains throughout the rev range.

Key features of the 1200ccm Stroker +16mm cylinder

• Capacity: 1200 cm³ - achieved through increased piston stroke and 95 mm diameter
• Compatible with Stroker shaft +16 mm - perfect alignment of piston and flow channels
• Nikasil coating (EU) - cylinder smoothness coated by a renowned European company, guaranteeing wear resistance and excellent lubrication
• 6 transfer channels + 2 boost ports - maximum flow of the fuel-air mixture
• Exhaust duct with additional auxiliary windows - faster gas exchange and better filling of the cylinder
• Advanced water jacket - cooling of all three exhaust ducts and the area above the window
• Precision casting and hand porting - perfect channel finish, optimised flow rate
• Power Valve System - balance between lower and upper speed range
• Valve adjustment - possibility to tune through springs of different hardness (available in JetSkiMann shop)
• Head with interchangeable combustion chambers - tunable compression ratio
• Premium finish - Cylinder painted black, CNC parts anodised for corrosion protection

Top-End kit contents:

• 1200ccm cylinder with Nikasil coating
• Head with interchangeable combustion chambers
• Set of mounting screws and gaskets
• Adjustable power valves
• Wiseco 95mm forged piston

The ready-to-use Top-End Kit contains all the components necessary for assembly - ideal for professional tuners, workshops and advanced watercraft users.

Application

• Engines based on Yamaha SuperJet
• CNC customised carcasses (JSM) and cast cartridges (JSM)
• Configurations freestyle i freeride

Why a 1200ccm JetSkiMann cylinder?

• Developed in Europe - full control over workmanship
• Racing engineering - design inspired by PWC Open Class units
• Maximum performance and reliability - tested under real sports conditions
• No import duty or VAT - European production