Yamaha 90 High Compression Billet Head Kit Dome Size:29cc Domes Approx 250 PSI - (Race Fuel Only) (Single stage carbon fiber reeds)

(Single stage carbon fiber reeds)

Made from Vinyl with metal grommets for strength and durability

We recommend using the following with our Block Off Plate ( they are not included)

TSR Yamaha 50 Billet Engine Head Kit best bolt on mod you can do or your outboard

Race fuel only)

Yamaha 90 High Compression Billet Head Kit Dome Size:29cc Domes Approx 250 PSI - (Race Fuel Only) (Single stage carbon fiber reeds)TSR Yamaha 90 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.