Valve Adjusting Kit

The CSR Performance Valve Adjusting Kit (Model 310) is a dual-handle feeler gauge set designed for precise valve clearance measurement and adjustment across small engines, motorcycles, and automotive applications. This steel-bodied kit combines SAE and metric sizing in a single compact tool, eliminating the need to switch between separate gauge sets during routine maintenance and tuning work.

The two-handle design provides intuitive control for consistent blade insertion and withdrawal, critical when measuring the tight tolerances between valve stems and rocker arms. A natural steel finish resists corrosion while maintaining tactile feedback during measurement. The dual SAE/metric sizing eliminates guesswork when working across American and import-specification engines, where valve clearances often differ by hundredths of an inch. Whether diagnosing a rough idle caused by improper valve gap or performing preventive maintenance on high-performance equipment, this kit delivers the precision required for accurate readings.

Technicians, engine builders, and motorsports enthusiasts rely on feeler gauge kits to establish correct valve clearance before final assembly or after thermal cycling. Improper valve clearance leads to compression loss, valve float at high RPM, and accelerated wear on valve seats and rocker arms. The CSR Performance gauge set fits the compact dimensions of most tool bags and workbenches, making it accessible for both shop environments and field repair scenarios. At 0.64 lbs, the kit remains portable without sacrificing the material rigidity needed for repeatable measurements across multiple engines.