guys i have a yale forklift with a ind 30 engine that i just did a compression check on cold and got readings of #1-85 #2-90, #3-95, #4-90, #5-90, #6- 95 and i believe these engines are 8-1 or 8.5-1 compression ratio. trying to find out what compression was new. it has been changed to 12v negative ground with pertronix module and its working GOOD, just zapped me hard! took the zenith updraft apart and clean as a whistle, sprayed it with carburetor cleaner and took apart running wire and air through jets! i would like to change it to downdraft carburetor off something more modern or better yet propane since the gas today is SHIT!