Echo Kioritz 302 clutch/sprocket woes, help?

[LAWN BOY]

I now have 3 Echo Kioritz CS302 chainsaws. I’m making 1 or 2 good saws. They all have very slight differences. All the sprockets are different. I don’t know much about clutches/sprockets/chains so any help would be greatly appreciated. I tried putting the bar/chain from the one with the bad oiler onto the other complete ish one and the chain wouldn’t fit right. Are they worn? Or all different styles that take different chains? I wanted to throw the bar, chain, carburetor, and clutch cover off the one with the bad oiler onto that other one and hopefully have a fully operable saw right away but this is the only thing preventing that from happening. The one with bad oiler I had running and it sure was a smoke fest. They take 20:1, for test run I just added x amount of 2 stroke oil to 32:1.

 

[heimannm]

Most likely you have three different chain pitches. The cloverleaf sprocket (last photo) looks like an 8 tooth 1/4" pitch. The spur sprocket is most likely 3/8 LP and the rim drive looks to be 1/4" or .325 from what I can tell looking at the chain.

I had one come to me with 1/4" pitch chain and a 3/8 LP drive sprocket...they ran it that way for quite a while.



Assuming the drum/sprocket, bar, and chain were matched on each saw to begin with, you will have to swap them as a unit.

Mark

 

[LAWN BOY]

So I will swap the drum/sprocket along with the bar/chain today then. Never took a drum/sprocket apart before. Thank you!