DZ140 Pump Mount Insulator Upgrade for DZ140 - YSF2187 by YS Engine  [YSF2187]

Vibration Isolator for DZ140 Assemblies

This YS Engine YSF2187 pump insulator serves as a replacement part that pads the pump from the DZ140 engine mounting. The component reduces mechanical energy transfer to the pump, which helps preserve fitting integrity and keeps fuel flow stable during rough running or high RPMs.

To install, remove the existing pump fasteners, place the insulator on the pump flange, and reinstall the bolts to the manufacturer recommended torque. Standard RC engine tools are sufficient and care should be taken to keep contaminants away from the fuel passages during handling.

For racers and club drivers, the insulator offers a small but practical maintenance improvement: it does not boost power, but it contributes to predictable needle settings and smoother throttle response by reducing vibration-induced fuel fluctuation.