[SUPG0235] G-90 Ringed w/Muffler

TECH NOTES

   This is a SuperTigre G90, the updated version of the S90K. The main         
differences between the two engines are that the G90 is a one-piece crankcase  
(S90K was a two-piece), and the G90's muffler is a bolt-through-the-crankcase  
(S90K muffler bolted onto the crankcase).                                      
                                                                               
FEATURES: Ringed piston                                                        
          Schnuerle scavenged                                                  
          Dual ball bearing-supported crankshaft                               
          Unique bolt-through muffler uses muffler bolts, lock washers,        
            and nuts to secure muffler to engine (no more stripped threads     
            on the crankcase or muffler).                                      
          Steel cylinder liner                                                 
          3-YEAR warranty                                                      
                                                                               
INCLUDES: One Assembled engine w/glow plug (SUPG1200)                          
          One Muffler, Muffler Gasket, Exhaust Stack, Pressure Fitting, and    
            Hardware Bag w/Bolts, Washers, Nuts, and Carb Retainer.            
          One Carburettor                                                      
          One Set of Instructions, Parts Diagram, SuperTigre decals            
                                                                               
SPECS:    Bore:               1.083" (27.5mm)                                  
          Stroke:              .976" (24.8mm)                                  
          Weight w/o muffler:  589g (20.66oz)                                  
          Weight with muffler: 765g (27oz)                                     
          Displacement:       .90 cu in (14.73cc)                              
          Output:             2.5 bhp at 14,800 rpm                            
          RPM Range:          2,500-16,000                                     
          Width between centers of mounting holes:         50mm (1.97")        
          Length between center of mounting holes:         20mm  (.79")        
          Width of crankcase excluding mounting flanges:   42mm (1.65")        
          Length from backplate to front of drive washer:  97mm (3.82")        
          Height from bottom of crankcase to top of head: 108mm (4.24")        
          Crankshaft size: 5/16-24                                             
          Suggested prop size: 12x8, 13x6                                      
          Carb Settings: H-2-turns out from closed position.                   
                         L- Take carb off, rotate and look at bottom side.     
                            Turn trottle until wide open, set tip of low end   
                            needle half-way across cat eye.                    
                                                                               
COMMENTS: Since this engine uses the exhaust stack from the S-90K, some after- 
            market mufflers will fit this engine (using the muffler screws from
            the G90) and some will not. Check the optionals in the Accessory   
            Completion Guide for after-market exhaust systems that will work.