The YS Engine wrist pin YSF4024 is intended as a replacement part for DZ160 model glow engines, serving as the pivot link between piston and connecting rod. It is supplied as a like-for-like replacement, not a tuning component, and is useful whenever the original pin shows wear during scheduled rebuilds.
In operation the pin secures the piston on the small end of the connecting rod and must run with minimal clearance while allowing free articulation. When preparing to fit, check the pin diameter against the piston boss bore on your DZ160, ensure circlips or retaining rings are in good condition, and remove any burrs that could score mating surfaces.
Assembly advice: use standard RC glow engine procedures, apply a light coat of appropriate engine oil to bearing surfaces, and manually rotate the assembly to verify smooth action and correct alignment before final assembly. Replacing this worn item can help sustain reliable engine performance when tolerances are correct.
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