O.S. Carburetor 21M2(B) Speed R2101

Tower Stock# OSMG2405  •  Manufacturer Stock# 2A081001
Notes from our tech department:
This is the 21M2(B) Carburetor for the
Speed R2101 On-Road Engine from O.S. Engines.

FEATURES

Fully assembled and ready to install

INCLUDES

21M2(B) Slide Valve Carburetor
8.5mm Aluminum Reducer, red in color

SPECIFICATIONS

Carburetor Settings, NOTE carburetor is preset at factory and
requires very small adjustments
Needle Valve: Approximately 3 turns open from fully closed
Throttle: Approximately 0.5mm open from factory setting with
reducer removed
Metering Needle: Rotate until slotted head is 0.5mm away from ball
link body
Mixture Control Valve: Rotate until slotted head is flush with
carb body

jxs 05/07/14
ir/jxs

Resources

References

Manufacturer Contact Information