The Isolator spark plug 14-280 is suitable for Simson models such as S50, S51, S70, S53, SR50, SR80, KR51/1, KR51/2, SR4-2, SR4-3, SR4-4, SR1, SR2, SR2E as well as MZ models ES, ETS, TS, ETZ, and RT125/1, RT125/2, RT125/3. The electrode gap is 0.4 mm and can be adjusted at any time.
