DZ140 Exhaust Tappet Adjusting Screw for DZ140 Engine - YSF2014 by YS Engine  [YSF2014]

Exhaust tappet adjuster for DZ140 engines

This RC-scale replacement part is the exhaust tappet adjusting screw identified as YS Engine YSF2014, intended for use with DZ140-designated engine items where the original adjuster carries the same reference. The text focuses on the component's role in restoring a serviceable adjuster and enabling correct tappet clearance after wear or loss.

Functionally, the screw provides the threaded interface used to set tappet clearance during routine maintenance, allowing repeatable adjustments without changing nearby components. The description does not claim fitment beyond the DZ140 reference included in the part name.

Installation notes: fitting the adjuster requires basic disassembly of the rocker and tappet area to reach the adjuster, careful hand threading to prevent cross-threading, and verification of tappet clearance after reassembly. This section gives an overview rather than detailed torque or step-by-step instructions.

Tuning role: this service item is used when setting tappet clearance as part of engine setup and maintenance, supporting consistent valve timing behavior on applicable RC-scale model engines.