Comes with Turbo Head Button. Standard Head Buttons are available. Factory picture shows optional remote adjustable needle valve (not included and available separately) as most boaters prefer remote needle mounted in a location within the boat and separate from the engine.  Requires a 180 degree header.

Technical Specifications

  Displacement: 7,50 cc
   R.P.M. (max power): 29.800 RPM
   Practical range: 3.000-31.800 R.P.M.
   Bore x stroke: 20,85x21,94 mm
   Sleeve: 9 ports
   Rear ball bearings: ceramic
   Front ball bearings: steel
   Albero: 16 mm 
   Carburetor: aluminium - 11 mm - rotary 
   Glowplug: Turbo (C6TGF)
   Exhaust position: rear
   Starting: -
   Weight: 491 g