YS Engine YSE1224 Service Piston and CDI for DZ170  [YSE1224]

Service piston and CDI for DZ170 models

This spare assembly is intended as a replacement piston and CDI module for DZ170-series YS Engine scale motors. It suits hobby use where the OEM piston or ignition module requires replacement during a maintenance cycle.

Fitment is described as direct for DZ170-marked engines, so confirm your engine code before ordering. Standard procedure involves removing the engine from the model, disassembling to access the piston and ignition area, fitting the replacement assembly, and reassembling while checking clearances and seals.

The part acts as a service item rather than a performance modification; after installation perform a bench run and basic tuning checks to ensure reliable ignition and compression before returning the motor to operational duty.

For those servicing DZ170 YS Engine units, this replacement piston and CDI provides a direct option; always check compatibility and follow established reassembly checks to confirm correct function.