Working 2 stroke engine

i printed the crankcase of a 2 stroke engine and got it running.  The only issue i had was air leaks between the layers. 

Parts: minarelli bearings, minarelli vertical crank, minarelli hor cilinder and reedvalve.  Printed a ignition.

Please give me more info if you make this!  I will give you the stl file of an ignition base plate for this engine if you send me more intel... thx