O.S. Max 21TM Engine with T-Maxx Manifold For Traxxas T-Maxx

This is the O.S. Max 21TM Engine with T-Maxx Manifold.              
         Direct fit for the 2.5 and 3.3 Traxxas T-Maxx Monster Trucks.         
                                                                               
                    *** TWO YEAR LIMITED WARRANTY ***                          
                                                                               
FEATURES: Adapts perfectly to the Traxxas E-Z Start or pull-start systems with 
            no modifications                                                   
          Included manifold is specially designed to fit directly into the     
            T-Maxx                                                             
          Traxxas' clutch assembly bolts right to the crankshaft with no       
            modifications                                                      
          Oversized cooling fins on crankcase helps to keep engine cooler      
          Three needle slide valve carburetor with fins to help cool the fuel  
            as it enters the engine                                            
          High-performance long reach O.S. glow plug suitable for off-road     
            applications that require constantly varying speed                 
          Two year limited warranty                                            
                                                                               
INCLUDES: One O.S. Max 21TM Engine with T-Maxx Manifold, LC3 glow plug, 11K    
            slide valve carburetor, exhaust gasket, manifold spring and        
            instruction manual                                                 
                                                                               
REQUIRES: Installing in vehicle                                                
          Air filter                                                           
                                                                               
SPECS:    Displacement: 0.21 cu in (3.4cc)                                     
          Bore: 0.669" (17mm)                                                  
          Stroke: 0.590" (15mm)                                                
          Practical RPM: 3,000 - 35,000 RPM                                    
          Output: 1.8 ps / 29,000 RPM                                          
          Weight: 8.57oz (243g)                                                
                                                                               
          Distance between mounting hole centers same side:      0.43" (11mm)  
          Distance between mounting hole centers opposite side:  1.2" (31.4mm) 
          Distance from end of crankshaft to drive washer:   1.03" (26.3mm)    
          Distance from center of engine to front bearing:   1.4" (34.8mm)     
          Width of mounting flanges:                             1.5" (39mm)   
          Length of exhaust flange:                              0.24" (6mm)   
          Height/backplate mount to top of cylinder head:        3.3" (85.3mm) 
                                                                               
COMMENTS: Needle Settings:                                                     
           - High Speed Needle (Needle Valve) 2-1/2 turns out from close.      
           To break-in close approximately 30° after running one tank          
           of fuel through vehicle, repeat five times                          
           - Mid Range Needle (Mixture Control Valve) Screw head is exactly    
           1/2 turn in from flush with the carb body                           
           - Low Speed Needle (Metering Needle) Turn 30° clockwise to lean     
           mixture or counter-clockwise to richen mixture