O.S. Engine OS44982200 Carburettor Rotor 61P FSa-110-P Service Replacement  [OS44982200]

O.S. ENGINES CARBURETTOR ROTOR 61P FSa-110-P
Price:
AUD$23.76
Brand:
O.S. Engine
Model:
OS44982200
GTIN:
4531028144910
Condition:
Brand New
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Replacement Rotor for Nitro Carburettors

The O.S. Engine OS44982200 rotor serves as a service replacement for compatible O.S. carburettor assemblies, intended to address wear that impacts fuel flow and throttle feel. The unit is referenced by model OS44982200 and internal designation 61P FSa-110-P.

Installation is intended for hobbyists comfortable with carburettor servicing: remove the carburettor, disassemble per the manufacturer's guidance, fit the new rotor while aligning indexing marks, then reassemble and bench-test for unhindered rotation. Complete a controlled run to confirm stable idle and progressive throttle response.

In tuning workflows the rotor is a maintenance item that preserves consistent metering rather than a tuning adjustment. After fitting, re-evaluate needle and idle settings and perform incremental on-track tests to confirm mid-range and top-end behavior remain as expected. This component is for RC hobby use only.

Specifications

  • Item: Carburettor rotor
  • Material: Not specified
  • Model Number: OS44982200
  • Compatibility: O.S. carburettor parts

Use the OS44982200 rotor as the correct service replacement for O.S. carburettor assemblies and always verify performance after installation.

How does a new rotor affect fuel metering and tuning?

A fresh rotor restores the rotor geometry that keeps metering consistent; you should still recheck the needle valves and make small tuning adjustments under load if fuel delivery changes.

Should I reset needle settings after fitting the rotor?

Resetting to your baseline settings and then refining by incremental runs is the recommended approach after replacing the rotor.

Will a new rotor improve mid-range throttle response?

If wear was affecting metering, replacing the rotor can yield smoother mid-range delivery; validate improvements with staged throttle tests.

Any special bench tests you recommend?

Check rotor free movement on the bench, confirm indexing alignment, then perform a controlled idle and blip test on the engine before full track use.

Can I tune out issues caused by a worn rotor?

Tuning can mask symptoms, but replacing the rotor is the proper fix when rotor wear is the root cause of inconsistent metering.

How should I validate performance on the track?

Run progressive load tests, starting with low RPM checks and then full-throttle runs to ensure the engine responds predictably across the rev range.

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