188F Start Cup (Straight Claw): The "Startup Power Connection Anchor" of High-Power Models

The 188F Start Cup (Straight Claw) is the "startup power connection anchor" of high-power 188F models—targeting the high-load startup needs of high-power engines, it is stamped from 2mm-thick zinc-plated steel, withstanding the instantaneous impact force during startup; the inner straight claw tooth profile perfectly matches the recoil’s straight claws, increasing engagement depth by 30% to avoid slipping and idling during pulling.

This start cup’s design adapts to the 188F flywheel’s mounting size: the fitting clearance between the inner diameter and flywheel shaft is controlled within 0.05mm, with no radial wobble after installation; the 8μm-thick zinc-plated surface effectively resists oil and moisture corrosion in the engine compartment, extending service life.

In 188F engine use, old start cups are prone to engagement failure (recoil idling, unable to start) due to tooth surface wear and deformation. After replacing this straight-claw start cup, the power connection between the recoil and flywheel returns to reliability, and the single-pull startup success rate is significantly improved.

Whether for high-load generators for emergency startup or high-frequency operation power tools, the 188F Start Cup (Straight Claw) can provide reliable startup power connection for high-power models with stable engagement and durable structure, being the "power transfer core" of the hand-pull startup system.