YS Engine YSF1218 Replacement Head Screws for F120  [YSF1218]

YS ENGINE CYLINDER HEAD SCREWS F120 #F1218
Price:
NZD$7.72
Brand:
YS Engine
Model:
YSF1218
Condition:
Brand New
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F120 head screw replacement kit

This spare part supplies the mounting screws designated for the F120 cylinder head, sold under the YS Engine YSF1218 part number. The item is intended as a direct replacement fastener set for F120-series RC glow engines where the original screws are worn, stripped, or lost.

Installation: use the correct driver to avoid rounding the screw heads, tighten to the engine manufacturer's recommended torque values, and apply a removable threadlocker where specified for routine rebuilds. Inspect mating threads and head seats for damage before reuse.

Tuning and maintenance role: these screws secure the cylinder head to the crankcase and therefore are part of regular engine service and rebuild work; correct fastening prevents leaks and ensures consistent compression across runs.

Do these screws match the original thread form?

Yes, the screws in the YSF1218 set are produced to match the F120 thread profile and fit the factory head and crankcase threads as a like-for-like replacement.

What driver tip should I use to avoid damage?

Select a hex or screwdriver tip that fully seats in the screw head. Avoid worn tips which can round heads; a properly fitting driver reduces the risk of stripping during removal or installation.

Is threadlocker recommended when rebuilding?

A removable threadlocker is often used for routine rebuilds where specified by the engine manufacturer. Follow the engine maker's guidance on threadlocker use and torque settings.

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