Replacement Pump Cap for DZ170 CDI - YSE3063 by YS Engine  [YSE3063]

Overview of the DZ170 CDI pump cap

This pump cap is an RC-scale spare intended for DZ170 CDI engines and keeps the fuel outlet properly sealed on CDI-equipped units. It is offered as a single accessory for routine engine care and quick replacements.

Fitment is focused on DZ170 CDI engine assemblies; always confirm part markings and size before installing. The swap is straightforward for hobbyists: remove the fuel cover, replace the cap, ensure gaskets are correctly seated, and inspect fuel lines for correct routing.

For maintenance and tuning the cap helps maintain reliable fuel flow and sealing integrity, which influence idle smoothness and throttle response. Treat this item as a straightforward replacement for workshop servicing or roadside fixes.