Yokomo YOKYS200 - 200cSt Silicone Shock Oil for RC Suspension  [YOKYS200]

Using 200cSt Silicone Shock Oil

YOKYS200 is a silicone shock oil with a 200cSt viscosity level formulated for RC shock absorbers where balanced damping is wanted. It alters how the shock responds by governing fluid flow through pistons and shim stacks, making it a tuning option rather than a mechanical replacement.

Fitment steps: empty the old fluid from the shock, check and clean the shaft and seals, then refill to the advised level taking care to avoid air pockets. Cycle the shaft slowly while filling to remove trapped air, wipe away any spilled oil, and ensure seals are seated correctly before refitting. A syringe or precision filler helps achieve accurate volumes.

Setup guidance: increasing viscosity raises compression and rebound damping, slowing reactions and reducing harsh high-speed movement; decreasing viscosity quickens response and improves small-bump compliance. Use 200cSt as a moderate starting point, then tune spring rates, piston hole sizes, or shim stacks to reach the desired balance. Verify changes on a controlled run and fine tune incrementally.

Storage: keep bottles tightly closed and stored at normal room temperature, label containers to prevent mixing different viscosities, clean tools after use, and dispose of used oil following local disposal regulations.