63mm Big Bore + High Camshaft + Big Valve Head! Full Engine Kit for Stock Crankshaft Cygnus X

【KN Planning KN-CY63F-NC-SET 63mm Bore Up + High Cam + Big Valve Head! Full Set Engine Kit, For Normal Crank Only, Cygnus X】
・KN Planning 63mm Bore Up + High Cam + Big Valve Head! Full Set Engine Kit 【Cygnus X / BW'S】
For normal crank only
【Features】

・Finally here! No more hesitation! Engine full kit!
・This is a full kit with a big valve + high cam head optimized for a 63Φ bore.
・This kit is exclusively for normal cranks.
・Includes special roller rocker arms! Maximum friction reduction!!
・A thoughtful kit that includes tappet adjustment bolts & nuts and even rocker arm shafts!
・Ports are significantly larger than genuine ones.
・Designed to deliver power without additional machining.
・Camshaft profile is optimized for the kit.
・Adopts forged piston for improved durability.
・Top shape is high compression type.
・Crankcase boring is required.
【Type】
For normal crank only
【Size】

～Cylinder～
・Bore diameter: 63Φ
・Aluminum plated sleeve cylinder
・Displacement: 180.3cc (with normal stroke)
～Piston～
・Forged aluminum piston
・High compression type
～Cylinder Head～
・Valve size: IN24mm / EX21mm
・Combustion chamber volume: 17cc
・BIG port
・Reinforced valve springs (silicon chrome alloy SWOSC-V)
～Camshaft～
・Operating angle: IN240° / EX240° (at 1mm lift)
・Lift amount: IN6.28mm / EX6.28mm
・Dedicated roller rocker arm included
【Compatibility】

・Cygnus X 1st generation Japanese spec 【5UA】
, Taiwanese spec 【5TY】

・Cygnus X 2nd generation Japanese spec 【28S】
, Taiwanese spec 【4C6・1CJ】

・Cygnus X 3rd generation Japanese spec 【1YP】
, Taiwanese spec 【1MS】

・Cygnus X 4th generation Japanese spec 【BF9】
, Taiwanese spec 【2UB】

・Cygnus X 5th generation Japanese spec 【B8S】
, Taiwanese spec 【B2J】

・BW'S125 1st generation Taiwanese spec 【5S9】

・BW'S X 1st generation Taiwanese spec 【46P】

・BW'S 125 2nd generation Japanese spec 【BG1】

・BW'S R 2nd generation Taiwanese spec 【2JS】

【Set Contents / Accessories】

・Dedicated cylinder head (IN & EX valves, springs assembled) ×1
・Dedicated camshaft ×1
・Dedicated rocker arm IN & EX (tappet adjustment nut & bolt, rocker arm shaft included) ×1 set
・Dedicated cylinder ×1
・Dedicated forged piston kit (rings, pin, clips included) ×1 set
・Dedicated head & base & tensioner gasket ×1
・Instruction manual
【Precautions】

*The head temperature sensor hole is M10 x 1.25. If not used, the hole must be plugged with a bolt or similar.
*This product is a high-end tuning part. Please ensure assembly is performed by an experienced mechanic.
*In some cases, such as interference with the chain guide due to individual differences, please address with processing.
*The genuine fixing bolt for the rocker arm pin plate is long and may interfere with the rocker arm.
*Please insert a washer into the bolt to avoid interference.
*This product is a kit exclusively for genuine cranks (normal stroke). Combination with a long crank requires adjustment.
*This product requires crankcase boring.
*Images are for illustration purposes only, and the design and specifications of the products shown are subject to change without notice. Please be aware of this.