gonna need to know what year engine is
2N/3N-1982/1983 series engine?
7N 1977 series engine?
6N 1976 series engine?
and then there are 3 size exhaust valves , they show standard.003in or.015in or.030in (engine series decides on which one of these it is)
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.