How many km does a rebuilt or new ETZ 250 take for the engine to run in (loosen up) please?
Re: Engine running in
Verfasst: 12. März 2019 07:19
von hiha
That depends on how you pratice running in. And of course, whom you ask I would say, piston rings are the only thing to run in, and that's the case after 250-400km. Don't use more oil than 1:50, let the engine spin, but only short time with high load. Have a look that carb setting is more on the rich side, than on the lean. Cheers, Hans