As Alan mentioned below, you need to turn the stator plate to the other set of screw holes. Once you do that, you'll be rippin!
https://i.imgur.com/2JubEco.jpg
EDIT: upon further review, you may not actually be able to time it quite right with the above. I ended up ditching the woodruff and timing it manually. This may be necessary to get it timed right on. Beware!
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Works Great on NOI
August 21, 2018
taco eater :
Alan from Washington, DC United States
The guy below me is a ding dong.
There is another set of holes on the NOI case that the stator can line up with. Magically, rotating the plate about 60° will expose the secret garden or holes. Go forth and feast upon the fruit of the Italian mountainside.
I have been running this coil with a puch hi RPM box/coil for about 2 years. It works without flaw.
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Too advanced for Garelli NOI
June 27, 2018
taco eater :
Johnathon Bartell from Sacramento, CA United States
76 Garelli Eureka NOI. Fat blue spark but no boom. I tried the 2013CDI and the 2041. Even put in new woodruff key. Spark is Waaaaay too advanced. (60 degrees according to timing light) going to try the White coil next.
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Rizzato 122
March 24, 2015
taco eater :
Ben Schulz from Detroit, MI United States
These coils will also work with the case inducted 122 califfo 80 and califfone motors. The white one would spark but not fire at the correct time. Green one with 2013 boxes works GREAT.
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perfecto on franco morini
March 16, 2014
taco eater :
brenton w from michigan aka hoth.
fits perfect on my counter clockwise FMM1 like a dream!
mine is equipped with cev flywheel # 6420
It only needed minimal grinding on the face of the stator plate so the wires did not get pinched in back when i tightened everything up.
Works on NOI 
Works Great on NOI