60M-C / 91SZ-H Mixture Control Valve Assembly - OS29181610 by O.S. Engine  [OS29181610]

O.S. ENGINES MIXTURE CONTROL VALVE ASSEMBLY 60M-C 91SZ-H
Price:
AUD$17.32
Brand:
O.S. Engine
Model:
OS29181610
GTIN:
4531028139206
Condition:
Brand New
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Fuel-air mixture valve assembly

The Mixture Control Valve Assembly from O.S. Engine is supplied as a direct replacement for the 60M-C and 91SZ-H carburettors used on RC glow engines. It provides the interface for adjusting the fuel/air ratio and idle without requiring changes to the carburettor body.

Fitment guidance: verify that your carburettor matches the 60M-C or 91SZ-H outline and mounting points prior to fitting. Remove the carburettor using standard hobby tools, exchange the valve assembly, and ensure the throttle linkage moves freely before reinstalling.

Tuning impact: this component directly affects mixture response and idle stability. Make incremental setting changes and observe throttle transition and low-RPM behaviour; bench testing is recommended before track use.

Maintenance pointers: inspect linkage joints and sealing faces for wear, keep fuel passages free from varnish or debris, and replace any degraded gaskets when performing carburettor service.

How does changing this valve alter throttle transition?

Adjusting the mixture control affects how the engine moves between idle and part throttle. Leaning or enriching the valve setting will change mid-range response and can smooth or sharpen transitions depending on the engine setup.

Will this improve low-RPM running?

Yes, correctly set mixture control can stabilise idle and improve low-RPM tractability, but results depend on overall carburettor tuning and engine condition.

What is the best way to tune after fitting?

Start with small adjustments and run the engine on a stand. Observe throttle response and idle, then make incremental changes and retest under load on the field to finalise settings.

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