O.S. Engines .21TM T-Maxx Manifold ABC 11K Slide Carb OSM12240

This is the O.S. Max 21TM Engine with T-Maxx Manifold.Direct fit for the 2.5and 3.3 Traxxas T-Maxx monster trucks.TWO YEAR LIMITED WARRANTY ***FEATURES: Adapts perfectly to the Traxxas E-Z Start or pull-start systems withno modificationsIncluded manifold is specially designed to fit directly into theT-MaxxTraxxas' clutch assembly bolts right to the crankshaft with nomodificationsOversized cooling fins on crankcase helps to keep engine coolerThree needle slide valve carburetor with fins to help cool the fuelas it enters the engineHigh-performance long reach O.S. glow plug suitable for off-roadapplications that require constantly varying speedTwo year limited warrantyINCLUDES: One O.S. Max 21TM Engine with T-Maxx Manifold, LC3 glow plug, 11Kslide valve carburetor, exhaust gasket, manifold spring andinstruction manualREQUIRES: Installing in vehicleAir filterSPECS: Displacement: 0.21 cu in (3.4cc)Bore: 0.669 (17mm)Stroke: 0.590(15mm)Practical RPM: 3,000 - 35,000 RPMOutput: 1.8 ps / 29,000 RPMWeight: 8.57oz (243g)Distance between mounting hole centers same side: 0.43 (11mm)Distance between mounting hole centers opposite side: 1.2 (31.4m)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 30º after running one tankof fuel through vehicle, repeat five times- Mid Range Needle (Mixture Control Valve) Screw head is exactly1/2 turn in from flush with the carb body- Low Speed Needle (Metering Needle) Turn 30º clockwise to leanmixture or counter-clockwise to richen mixture