Piston Wrist Pin Access Screw YSF2084 for RC Engine Service - YS Engine  [YSF2084]

Wrist pin access screw explained

The YS Engine YSF2084 piston wrist pin access screw is a spare component created to ease access to the piston wrist pin and to hold the pin securely while you service the engine. It is aimed at maintenance tasks and does not alter internal engine geometry.

Use this part as a maintenance convenience rather than a tuning upgrade. It helps with pin extraction or inspection, keeps the piston positioned during service, and speeds routine teardown work. Prior to installation, compare the part reference to your engine's service parts list to ensure correct fitment.

Installation guidance: the screw should be used only for access or as a temporary retaining device during wrist pin work. Follow standard disassembly steps, use a clean workspace, and check alignment before completing reassembly to prevent damage to the piston, wrist pin, or conrod.