Ryan,


Running 15% Cool Power in this engine is analogous to running unleaded regular gasoline in your Ford Power-Stroke Diesel truck...
Need I say more?

Break-in MUST 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].

The break-in is over by the time the engine has accumulated 15-20 minutes. That would mean about a 12 oz. tank and a half.
If not, he was trying to do a rich break-in. This is not good for this engine!

If the engine did run on 15%, the head is probably shimmed.

Find a source for 5% nitro, 20% oil fuel, out of which about half is Castor oil. If you order 4 gallon crates, the LHS will get it for you.

Cool Power is all synthetic. Again, this is not good for the engine!


Well, at least the carburettor seems to be the new model...


After removing the head to check out the shims, turn the engine over and see if the piston still 'catches' at TDC. It should.

I would not buy an engine from this source...