I use a catapult and a fishing real with 20lb line to fire a 2oz lead over the tree. Then I conect that to the roap and pull it up
Both my chainsaws are Sthill and they are prety good but dead fussey on the 2stroke mix. If its too rich they cough and splutter
I have something like a 12 " and 16" bar? for both Sthill's cant remember the lengths but its a No45 and a No49 blade
Generaly if they wont start it because they were stored wrong and the carb is totaly empty.
I have a Johnson reed single bar hedge trimmer and it seems to run great no matter how much I screw up the 2stroke mix