Thanks guy for the help. I did purchase a Butane Micro Therm Flame Less Heat Gun and was able to start the engine two times away from any power source. It wasn't successful after the 3rd time I just couldn't get the engine hot enough.
Originally Posted by jclay
I have a JP 21R-7L and just broken it in a month ago. I know your pain. It was super tight and had to use a flat head at times when it got stuck at TDC. Many starter boxes couldn't even turn the flywheel it was so tight.
The Kyosho 2.0 was the only starter box that could crank it from a cold state.
How do you like your 21R-7L I almost brought that engine for $300, but got this motor instead ... I do think my starter box is part of the problem it is over 5 years old ...