Impulse Spring for Wico Type XH Magneto This is an Impulse Spring for Wico Type XH Magneto. Other parts are available for this and other Magnetos. All new and used parts are Warranted for 90 days. If You get the wrong part or are not 100% completely satisfied with it, Send it Back for a Complete Refund. Please Call for prices on C.O.D. and Foreign Shipping.