I bought a GMS .47 to replace the old OS .40 my dad got for me with my trainer; my old engine was used so I never had to break it in. I decided to go ahead and break in my new GMS today which was probably a bad idea because I have no clue how to break in an engine lol, but it was too tempting and I just couldn’t leave the engine in the box. The only thing the manual stated about break in was I shouldn’t run the engine over lean or at peaked RPM. So I ran the first two tanks at a constant full throttle really rich. I realized later that this could cause harm to the engine and seriusly reduce it's life-span ,,,? if anyone could offer any help or tips on the break in process it would be appreciated ,, Thanks