O.S. Speed 21XZ-B Spec II Ty 110% w/T-2090SC Pipe

Tower Stock# LXGUZW  •  Manufacturer Stock# 1217E
O.S. Speed 21XZ-B Spec II Ty 110% w/T-2090SC Pipe (large view)
Notes from our tech department:
**Additional Technical Info Will Be Added When It Becomes Available.**
This is the O.S. Speed 21XZ-B Spec II Ty Tessmann Edition 110% Long Stroke
Glow Engine w/T-2090SC Tuned Pipe from O.S. Engines.

FEATURES

0.16" (4mm) lower cooling head lowers center of gravity for improved
handling
Slide valve carburetor with 7mm venturi insert for greater power and
less fuel consumption
Tuned pipe features aluminum construction, polished natural finish
EFRA-2089 noise rating

INCLUDES

21XZ-B Spec II Ty Tessmann Edition 110% Long Stroke Glow Engine with
w/T-2090SC Pipe

REQUIREMENTS

Glow Fuel: 10-30% nitro content, 20% recommended for break-in
Glow Starter and Track Equipment

SPECIFICATIONS

Engine;
Displacement: 0.213 cu in (3.49 cc)
Bore:
Stroke:
Practical RPM:
Power Output:
Weight:
Crankshaft Size: UNF1/4-28
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:
Width at Mounting Tabs: 1.8" (45mm)
Width of Crankcase below Mounting Tabs: 1.2" (31.6mm)
Distance from Backplate to Front Bearing:
Distance from Center of Crankcase to Front Bearing:
Distance from Center of Crankcase to Backplate:
Tuned Pipe;
Length: 6.6" (167mm)
Diameter: 1.4" (35.2mm)
Exhaust Outlet Diameter: 0.31" (8mm)

jxs 07/28/17

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