MAX-21XZ-B VER.II

This is the O.S. 21XZ-B V2 ABC Engine with 22B2 Carburetor           
                    for 1/8 scale Off-Road Buggy Racing.                       
    
                                                                               
FEATURES: High performance crankshaft has silicone filled intake passage and   
            Tungsten counterweights                                            
          Lightening holes in cylinder head reduce overall weight              
          22B2 single needle slide valve carburetor                            
          ABC piston and liner construction "A"luminum piston fitted to a      
            "B"rass cylinder liner that is "C"hrome plated                     
          Optimized power band                                                 
                                                                               
INCLUDES: O.S. 21XZ-B V2 Off-Road Engine with 22B2 Carburetor, Exhaust         
            Gasket, P3 Turbo Ultra Hot Glow Plug, yellow 7mm Carb Reducer,     
            Instruction Manual and two Dust Caps                               
                                                                               
REQUIRES: Fuel: 10-30% nitro content, 20% recommended for break-in             
          Exhaust System: Depending on vehicle                                 
          Glow starter, fuel tubing and track equipment                        
                                                                               
SPECS:    Displacement: 0.213 cu in (3.49 cc)                                  
          Bore: .641" (16.27mm)                                                
          Stroke: .661" (16.8mm)                                               
          Practical RPM: 3,000-41,500                                          
          Power Output: 2.7 PS @ 34,000 RPM                                    
          Weight: 12.77oz (362g)                                               
          Distance Between Mounting Holes Same Side: 0.83" (21mm)              
          Distance Between Mounting Holes Opposite Side: 1.45" (37mm)          
          Height Bottom of Mounting Tabs/Top of Cylinder Head: 3.4" (86.5mm)   
          Width of Mounting Tabs: 1.8" (45mm)                                  
          Distance from Backplate to Front Bearing: 2.5" (64.5mm)              
          Distance from Center of Crankcase to Front Bearing: 1.7" (44mm)      
          Distance from Center of Crankcase to Backplate: 0.81" (20.5mm)       
                                                                               
             Carburetor Settings, NOTE carburetor is preset at factory and     
          requires very small adjustments                                      
            Needle Valve: Gradually reduce factory needle valve setting in 15° 
              increments following instructions in manual                      
            Metering Needle: After setting at optimum position run vehicle in  
              straight line and turn metering needle clockwise 15-30° to lean  
              mixture, or 15-30° counter clockwise to richen mixture           
            Throttle Stop Screw: Turn counterclockwise if engine runs too fast 
              with throttle closed