Chris,


Your GMS is a tapered-bore engine; an ABC actually.

The break-in should be done as described in [link=http://www.rcuniverse.com/forum/Tapered%2DBore_Engine_Break%2Din_%2D_Upgraded/m_1850473/tm.htm]this thread[/link].

By running it very rich, as you did, especially if it was four-cycling and still touchable, you may have shortened its life-span. It was not properly broken-in and it is best that you repeat it.


I see that you are new to RCU.
Next time, if something is unclear, it is best to ask the questions first and to proceed with the actions later.

It proved to be much cheaper that way.