Everest Engine Governor Throttle Speed Control Return Spring Fits Honda HS521 HS521K1 HS522 HS55 HS55K1 HS55K2 HS621 Snowblower $ 9.95 Default Title Add to Cart Please fill in the form below if you'd like to be notified when it becomes available. Your Email Send This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Includes 1x Spring