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There are no more items in your cart For installation this set engine boring and welding is needed.
Can be used with long stroke crankshaft +6.2mm.
Big bore set 250cc for upgrade Yamaha Cygnus125 5ML engine.
Set includes: four valves cylinder head Ex23/In25with billet lids, ceramic cylinder kit 70mm with FJN piston, long chain, aluminum spacers, camshaft, rockers with rollers, powerful starter, big manifold, 34mm carburetor, air filter, ignition coil, bendix.
For installation this set engine boring and welding is needed.
Can be used with long stroke crankshaft +6.2mm.