YS Engine Carburetor Replacement YSS3019S for 120SR Engines  [YSS3019S]

YS ENGINE CARBURETOR ASSEMBLY 120SR #S3019S
Price:
NZD$77.72
Brand:
YS Engine
Model:
YSS3019S
GTIN:
4560105743104
Condition:
Brand New
Write a review

How this carburetor mounts and works

This RC-scale carburetor assembly is supplied under the YS Engine part number YSS3019S and is specified for use with the 120SR family noted in the product title. It functions as a replacement unit to re-establish proper fuel metering and idle control on matching model engines and is not a complete engine or for non-hobby use.

As a serviceable spare, the assembly locates to the intake flange, engages the throttle arm and linkage, and accepts the usual needle adjustments for mixture tuning. During replacement, inspect flange seating, any gaskets or O-rings, and ensure throttle linkage moves freely to avoid air leaks or binding.

For setup and tuning, proceed with small needle changes to achieve the desired idle and main-jet response, run the engine in controlled conditions, and verify operation under load. The notes here describe fit and function rather than exhaustive installation steps.

Specifications

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

Designed as a spare for RC-scale engines, the YS Engine YSS3019S carburetor assembly restores predictable fuel control and gives a consistent platform for needle tuning; verify proper sealing and alignment before operation.

Will this fit earlier 120SR variants or only current models?

Compatibility is listed as the YS Engine 120SR series. Variations between early and later 120SR versions can affect flange shape or linkage geometry, so compare the flange and throttle linkage on your engine to confirm fit before purchase.

Should I replace gaskets or O-rings when fitting this part?

It is good practice to inspect and, if necessary, replace any gaskets or O-rings when installing the carburetor to ensure a reliable seal at the intake flange and prevent vacuum leaks that upset mixture control.

How do I preserve the carburetor from corrosion or varnish?

Regularly clean with suitable solvent after running and drain fuel from the system before storage. Periodic inspection and light lubrication of moving parts will extend service life and reduce varnish buildup.

What service lifetime can I expect from this assembly?

Service life depends on usage, fuel type, and maintenance. With correct care—cleaning, seal replacement as needed, and avoiding harsh environments—the carburetor should provide consistent service for routine RC use.

Copyright © 2008-2026 rcjaz.co.nz All rights reserved