YS Engine 120SR Compatible Carburetor YSS3019S for 120SR  [YSS3019S]

YS ENGINE CARBURETOR ASSEMBLY 120SR #S3019S
Price:
AUD$64.35
Brand:
YS Engine
Model:
YSS3019S
GTIN:
4560105743104
Condition:
Brand New
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Role and mounting details

This RC-scale carburetor assembly is supplied under part number YSS3019S from YS Engine and is intended for the 120SR family referenced in the product name. It serves as a direct replacement to restore correct fuel delivery and idle control on matching model engines and is not supplied as a complete engine unit.

The assembly mounts to the intake flange, links to the throttle arm and throttle linkage, and accommodates the typical needle adjustments used for mixture tuning. When installing, check flange alignment, ensure gaskets or O-rings are in good condition, and confirm the throttle linkage moves without interference.

For tuning, apply small incremental needle changes to dial in idle and main-jet response, perform initial runs in a controlled setting, and validate behavior under load. This overview covers fit and function rather than full installation guidance.

Specifications

  • Item Carburetor assembly
  • Material Unspecified
  • Model Number YSS3019S
  • Compatibility YS Engine 120SR series

As a service part for RC-scale engines, the YS Engine YSS3019S carburetor assembly is intended to return factory-style fuel control and provide a stable base for needle tuning; confirm correct fit and sealing before operation.

What should I check first when fitting this carburetor?

Begin by checking that the intake flange matches the engine, verify the orientation of the throttle arm, and confirm there are no obstructions to throttle travel. Replace any worn seals before final assembly.

How do I align the throttle linkage to avoid binding?

Set the throttle arm at its neutral position and adjust linkage length so the arm moves smoothly through its range without contact with the carb body or intake manifold. Small adjustments and a final functional test will reveal binding issues.

Does the carburetor require specific fuel line orientation?

Ensure the fuel inlet and any overflow paths are oriented to prevent air locks and allow gravity feed where applicable. Confirm fuel fittings match your existing tubing to avoid leaks at the connection.

Are mounting screws or seals included with the part?

The listing describes the carburetor assembly itself; verify whether your purchase includes fasteners or seals or if these need to be sourced separately to complete installation.

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