Iapologize. My remark wasa aimed at Graybeard and not at the original poster.
If the original posters only concern is that his trainer is not going well enough for some unkown reason Ithink the has been addressed already.
However if the original poster has advanced to a level to which his 40 size engine is not fast enough I would be happy to teach him a few simple methods for extracting more power from the inexpensive engine he already owns rather than spending a bunch of money on a bigger engine. He is welcome to PM me if this becomes too controversial.