O66 had changes done to the crank, flywheel & case. Just an upgrade & a different cylinder size. Notorious for the size change. Some saws had as many as 3 different sizes. As for the 36" bar they were rated for a 32". Not to say it wouldn't pull it but for longevity. Both models had air filter leakage. Run 'em in the woods, grab a 55 gallon barrel of fuel, you'll need it!
I run Stihl elasto start pull handles on all mine. Is easier on you and those composite parts on the inside of the pull cover when pulled if you bottom out. Damn good saws Stihl i have four all 0 series
O66 had changes done to the crank, flywheel & case. Just an upgrade & a different cylinder size. Notorious for the size change. Some saws had as many as 3 different sizes. As for the 36" bar they were rated for a 32". Not to say it wouldn't pull it but for longevity. Both models had air filter leakage. Run 'em in the woods, grab a 55 gallon barrel of fuel, you'll need it!
I run Stihl elasto start pull handles on all mine. Is easier on you and those composite parts on the inside of the pull cover when pulled if you bottom out. Damn good saws Stihl i have four all 0 series
Cuantas vueltas lleva las agua del carburador de esa moto sierra 650
1 para L y 3/4 para H
The bottom on by the trigger that sticker will tell the date
Minha primeira foi a 066 melhor q a 660