• Adapts perfectly to the Traxxas E-Z Start or pull-start systems wit no modifications.:
• Included manifold is specially designed to fit directly onto th Revo.:
• Traxxas' clutch assembly bolts right to the crankshaft with n modifications.:
• Oversized cooling fins on crankcase helps to keep engine cooler.:
• Three needle slide valve carburetor with fins to help cool the fue as it enters the engine.:
• High-performance long reach O.S. LC3 glow plug suitable for off-roa applications that require constantly varying speed.:

• 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, 1.77 HP/29,000 RPM:
• Weight: 8.57oz (243g):

One O.S. Max 21TM Engine with Revo Manifold, LC3 glow plug, 11K slide valve carburetor, manifold spring, rubber exhaust gasket, sticker sheet and instruction manual

• 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) Distance/bottom of mounting flanges/top of cylinder head:3.2(81.2mm) 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):
• Needle Settings:.:
• - High Speed Needle (Needle Valve) 2-1/2 turns out from close To break-in close approximately 30° after running one tan of fuel through vehicle, repeat five times.:
• - Mid Range Needle (Mixture Control Valve) Screw head is exactl 1/2 turn in from flush with the carb body.:
• - Low Speed Needle (Metering Needle) Turn 30° clockwise to lea mixture or counter-clockwise to richen mixture.: