OS Motors .21TM Revo Manifold ABC 11K-R Slide Carb

This is the O.S. Max 21TM Engine with the Revo Manifold.
Direct fit for the 2.5 and 3.3 Traxxas Revo.

*** Two year restricted guarantee ***

FUNCTIONS:
Adapts completely to the Traxxas E-Z Start or pull-start systems with
    no modifications
Included manifold is specially designed to fit directly onto the
    Revo
Traxxas' clutch assembly bolts right to the crankshaft with no
    modifications
Large cooling fins on crankcase helps to keep engine cooler
3 needle slide valve carburetor with fins to assist cool the fuel
    as it goes into the engine
High-performance long reach O.S. LC3 radiance plug suitable for off-road
    applications that require constantly differing speed

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

REQUIRES:
Setting up in automobile
Air filter

SPECIFICATIONS:
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)

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 install to top of cylinder head: 3.3" (85.3mm)

REMARKS:
Needle Settings:
- High Speed Needle (Needle Valve) 2-1/2 ends up from close.
    To break-in close around 30° after running one tank
    of fuel through automobile, repeat five times
- Mid Variety Needle (Mix Control Valve) Screw head is exactly
    1/2 turn in from flush with the carbohydrate body
- Low Speed Needle (Metering Needle) Turn 30° clockwise to lean
    mix or counter-clockwise to richen mix