The Motion Pro Valve Seal Install Tool (5.0mm HYA) is a high-quality tool specifically designed for installing valve stem seals on Hayabusa engines. It ensures precise and efficient installation while protecting delicate components.Features: Compatible with 5.0mm valve stem seals. Properly aligns valve stem seals to valve guides for accurate and secure installation. Contoured handle cradles and protects the inner lip of the seal while directing force to the outer rim. Slim profile allows easy access to compact cylinder heads with deep lifter bores. Rounded tip prevents damage to seals or valve guide bores. Anodized aluminium handles and stainless steel pilot shafts for durability and corrosion resistance. Specifications: Tool size: 5.0mm (specific for Hayabusa engines). Material: Anodized aluminium handles with stainless steel shafts. Product type: Valve stem seal installation tool.