I have two questions..
She has a complete motor rebuild with a little bit of shaving on the head, .20 overbore, hot seat header with gutted muffler, after market reeds(2 big ones with nothing in the way), itp mudlites stock size and 210 jet. I'm looking into these aftermarket cdi's. Are they worth it? Also thinking of chain and sprocket sets(all of them) and going bigger for more lower end so it runs cleaner when pulling trees, brush and plowing oh and mudding . She just likes to gum up at anything less then half when pulling or pushing anything and I'm sick of it. I run a ngk br6es plug and premium all the time with stp gas treatment every 3rd or 4th tank.
Any thoughts or suggestions would be great

 

Also has very aggressive clutch spring stalls to about quarter throttle. Can't remember color but was 2-3 inches longer then green spring i had and works great.