In Stock Plug and play engines Engine kit 250cc for Ruckus with Yamaha 5ML engine and frame 103059 USD 5,500 Complete water cooled CYGNUS engine 250cc for Honda RUCKUS. It includes all the necessary details and spare parts with engine to modify RUCKUS 50cc to 250cc: 1. Tuning engine full complete kit with 70mm cylinder, 600 long stroke crankshaft, 4 valves cylinder head EX23/IN25, carburetor 30-34mm depends on target, adjustable sprocket, modified transmission... Add to cart