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O.S. - OSMG2473 OSM21538000 21538000 531028138407 4531028138407
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O.S. Carburetor #11H Slide 12TZ(P)-T3
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O.S. Carburetor #11H Slide 12TZ(P)-T3
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Tech Notes
This is the complete 11H Slide Carb used on the following engines:


Genuine O.S. replacement parts
Slide carb design


One complete 11H carb w/pre-installed Thermo Insulator OSMG6247
and 5.5mm Black Carb Reducer OSMG2476
One rubber carb gasket OSMG6220


Installing on engine


Length: 0.87" (22mm) approx. including needle and idle stop screw
Width: 1.7" (44mm) approx. including needle and throttle arm
Height: 1.71" (43.6mm) approx. including needle
Diameter: 0.63" (16.1mm) OD of intake (throat)
0.51" (12.9mm)ID of intake (top) not including Carb Reducer
0.51" (12.96mm) OD of neck including thermo insulator
(the part that inserts into the crankcase)
0.26" (6.64mm) ID of neck @ narrowest point (top)
0.35" (8.88mm) ID of neck @ widest point (bottom)


Carb can be identified with an "11H" on the back side of carb body

Needle Settings:
Needle Valve (aka High Speed Needle):1 open from closed position
per page 18 of engine manual.

Mixture Control Screw (aka Low Speed Needle):The head of the mixture
control screw is flush with the carb body per page 25 of eng manual

Metering Needle: Head of metering needle screw is flush with the
ball link body per page 25 of engine manual.

Throttle Stop Screw: This is set so the rotor is still 0.5mm open
when closed per page 18 of engine manual.
tjt 052605

– If you need more information, use these O.S. resources –
Email: enginesupport@hobbico.com
Web Site: http://www.osengines.com/
Phone: 217-398-8970
  Postal Address:

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Parts Compatibility
Parts Compatibility for O.S. Carburetor #11H Slide 12TZ(P)-T3
This item is a replacement part for the following:
 LXJFY8 O.S. 12TZ(P)-T3 ABC Engine w/ 11H Slide Carburetor  (Parts List)
 LXRUN8 O.S. 12TZ(P)-T3 ABC Engine w/ 11M Rotary Carburetor  (Parts List)

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