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TSR CR250 Billet Cases Direct OEM Replacement for 1992 to 2001 year models
Heavy weight
with the squish clearance being tighter than stock and designed to be more detonation resistant with overall improved power through the whole rev range with multiple dome sizes to choose from to suit both pump and race gas applications
Housing uses all standard KX500 OEM water pump bearings
Yamaha 50 High Compression Billet Head Kit CR500 TSR CR250 Billet Cases DirectTSR Yamaha 50 Billet Engine Head Kit best bolt on mod you can do or your outboard Our billet head kit has increase cooling volume and improved heat dissipation, with the squish clearance being tighter than stock and designed to be more detonation resistant with overall improved power through the whole rev range with multiple dome sizes to choose from to suit both pump and race gas applications This is a direct bolt on kit with no other mods required.
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