So I just bought a Makita 9000, what’s yer thoughts??

[ajschainsaws]

here is that sprocket from GB

 

[Wood Doctor]

Drool Drool Drool. My friend and I milled 20" dia. black walnut using a stock Makita 6421 with a 32" bar and got 8 boards out, 1.5" thick, 8' long. I was impressed that this saw had the power to do that, but it seldom hesitated. We used ordinary semi-chisel chain and only changed loops once, right after the fifth board was completed. We used the same saw mill hookup shown above with guide bars for the first rip.

Cheers!

 

[srcarr52]

For 3/8 lopro the diameters are such.
7 pin 1.435"
8 pin 1.670"