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Product ID: OS12186
Manufacturer: O.S. Engines
ISBN: 4531028020955
O.S. Engines 12186 .21XZ-B Speed ABC 21J2 B
Not in Stock now but available will arrive soon after your order
O.S. Engines 12186 .21XZ-B Speed ABC 21J2 B
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FEATURES:
  1. DLC coated crankshaft with silicone filled intake passage for improved fuel flow
  2. ABC piston and liner construction Aluminum piston fitted to a Brass cylinder liner that is Chrome plated
  3. Three port cylinder liner with special Speed version inner head andporting for smoother acceleration
  4. 21J2(B) slide valve carburetor with 6, 6.5 and 7mm carb reducers that restrict the airflow helping to increase the amount of torque produced
  5. Black anodized crankcase with ceramic ball bearings helps reduce resistance and increase performance
INCLUDES: O.S. 21XZ-B ABC Off-Road Engine with 21J2(B) Carburetor, Exhaust
Gasket, P3 Turbo Ultra Hot Glow Plug, 6, 6.5 and 7mm carb
Reducers, 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: 0.21 cu in (3.49 cc)
Bore: 0.6 (16.3 mm)
Stroke: 0.7 (16.8mm)
Practical RPM: 4,000-40,000
Power Output: 2.6 hp @ 34,000 RPM
Weight: 12.5oz (355g)
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 (86.3mm)
Width of Mounting Tabs: 1.8 (45mm)
Distance from Backplate to Front Bearing: 2.5 (64.5mm)
Distance from Center of Crankshaft to Front Bearing: 1.7 (44mm)
Distance from Center of Crankshaft to Backplate: 0.81 (20.5mm)

Carburetor Settings,
Needle Valve: Approximately 3.5 turns open from fully closed
Throttle: Approximately 0.5mm open from factory setting with reducer removed
Metering Needle: Rotate until slotted head is 1.5mm away from balllink body
Mixture Control Valve: Rotate until slotted head is flush with carb body

NOTE carburetor is preset at factory and requires very small adjustments

BOX DIMENSIONS: 5.38 W. X 3.75 H. X 6.13 L.
BOX WEIGHT: 1.31 LBS.
 
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List Price: $749.99
Price: $469.99

 
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