Small engines are a lot like race engines...while they all run good out of the box..every once in a while you find one that runs great..a few centimeters here and there can make all the difference in the world....
The quest to find those small differences has kept my work interesting..and kept me with a paycheck..
I've built hundreds of small engines...and to this day I don't know how well it will run..until I hear it run..
You can cover all the bases and still encounter a bug you haven't seen before..
As my signature says...you're only as good as your last repair...do the work..
If You Have All The Answers...Except The One You Need...You're Not Trying Hard Enough...
Do The Work