This YSG7040 push rod is intended as a single service replacement for YS Engine DZ70 glow engines to restore correct valve actuation and linkage performance.
Install a new push rod when the original is bent, worn at the ends, or shows excessive play that affects valve timing. The push rod transfers rocker or cam movement to the valve lifter, so correct length and straightness are required for consistent operation and proper valve clearance setup.
To install: remove the rocker retention hardware, withdraw the worn rod and fit the YSG7040, then reassemble and confirm valve clearance and unobstructed movement through the full travel range. Verify smooth operation and correct clearances before running the engine.
Compatibility: For DZ70 series YS RC glow engines.
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