14520-ZY3-000 TIM BLT ADJ SPRING - Overview. The 14520-ZY3-000 TIM BLT ADJ SPRING is a vital spring used in the timing belt adjustment system of Honda marine engine systems. It plays an essential role in maintaining proper tension on the timing belt, which is critical for the efficient and reliable operation of your engine. This component helps prevent timing belt slippage, ensuring synchronized engine timing for optimal performance, durability, and smooth operation.. Key Features. Genuine OEM H