YS FZ70S Carburetor Throttle Sleeve Upgrade YSG1052 for YS Engine  [YSG1052]

YS ENGINE THROTTLE BARREL FZ70S #G1052
Price:
AUD$19.39
Brand:
YS Engine
Model:
YSG1052
GTIN:
4560105742060
Condition:
Brand New
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Throttle barrel sleeve designed for YS FZ70S

This barrel sleeve replaces worn internal bores found in YS FZ70S carburettors, restoring a true sliding surface for the carburettor slide. The updated bore helps smooth throttle transitions and reduce idle hunting in glow-model engines.

Fit and role: the part is the sliding bore inside the carburettor throat; its condition directly influences throttle feel and low-speed stability. Replacing a damaged barrel is a routine tuning and maintenance task for better mid-range performance.

Installation notes: supplied as the barrel component only and intended to be installed into the original carburettor throat. Best suited to users comfortable with small engine maintenance and carburettor assembly. Sold as an RC spare component.

Will a new barrel change needle settings?

A smooth, correctly sized sleeve stabilises airflow and slide motion, which can make idle and mid-range tuning more predictable; only minor needle tweaks are usually required after installation.

Should I adjust the high-speed needle after fitting?

In most cases the high-speed needle will remain close to its previous setting, but a quick test run and small fine tuning are recommended to confirm peak performance.

Any break-in or preparation needed for the new sleeve?

After installation, check for smooth slide action and perform a few gentle runs to confirm idle stability. Ensure the sleeve is clean and any sealing surfaces are correctly assembled before full-power testing.

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