YS Engine YSS1040 Regulator Body A 50ST Replacement Part for Regulator Assemblies  [YSS1040]

Replacement Regulator Body - A 50ST

This RC-scale regulator body is the YS Engine YSS1040 replacement for the S1036 regulator body, issued as a direct-fit spare for regulator assemblies. It restores the original housing shape and mounting points so internal regulator components remain correctly placed during maintenance or setup.

Fit this component when the original regulator body shows wear or has been damaged, or when you are preparing the engine for routine service or bench tuning. The part is intended as a like-for-like replacement for S1036-style assemblies and normally requires no modification when correctly fitted.

Installation guidance: detach the regulator assembly from the engine using standard disassembly methods, note the orientation and fastener positions, replace the old body with the YSS1040 unit, and refit using the same mounting hardware. Always verify clearance and linkage alignment before operating the engine at higher settings.