This is the Thunder Tiger Pro .46M 2-Stroke Inboard Marine Engine.

FEATURES: Side exhaust
          CNC machined components
          ABN piston and sleeve "A"luminum piston, "B"rass cylinder liner that
            is "N"ickel plated
          Water cooled cylinder head, blue in color
          Hyperutectic machined Al-Si ringed piston
          Dual ball bearing-supported long style SG crankshaft
          Two needle carburetor with 9mm bore and oversized throttle lever for
            easy installation and operation of throttle linkage
          Three year limited warranty through Hobby Services beginning at date
            of purchase

INCLUDES: Thunder Tiger Pro .46M Marine Engine with carburetor, R2 long reach
            glow plug, 2.5mm hex wrench, decals and instruction manual

REQUIRES: Fuel: 20% lubricant and 10-40% nitro content, synthetic/castor blend
            lubricant recommended (do not use more than 10% nitro content for
            break in)
          Glow starter, plug wrench and shore equipment

SPECS:    Displacement: 0.455 cu in (7.47cc)
          Bore: 0.858" (21.8mm)
          Stroke: 0.787" (20mm)
          Practical RPM: 4,500 - 24,000
          Output: 2.46 HP @ 23,000 rpm
          Weight: 12.35oz (350g)
            Carburetor Settings-NOTE carburetor is preset from the factory and
            requires only small adjustments
          Needle Valve: 3 turns counterclockwise from closed
          Mixture Metering Screw: After setting needle valve, set mixture
            screw flush with the end of the spray bar and then turn upward
            about two turns

          Height from Mounting Tab Bottom/Top of Cylinder Head: 2.7" (70.1mm)
          Height from Crankcase Bottom to Top of Cylinder Head: 3.5" (88mm)
          Width at Mounting Tabs: 1.9" (50mm)
          Width of Crankcase below Mounting Tabs: 1.3" (33mm)
          Center of Mounting Holes Same Side: 0.71" (18mm)
          Center of Mounting Holes Opposite Side: 1.6" (42.9mm)
          Center of Crankcase to Front Bearing: 2.04" (51.7mm)
          Distance from Backplate to Front Bearing: 3.01" (76.4mm)

                                                                   jxs 10/27/10
                                                                         ir/jxs