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Easy enough to test which position is correct. With the saw not running of course, Try each position the one where the chain moves freely is the correct position. Most likely on this saw it will away from the bar (rearward).
The saw has a centrifical clutch that engages as rpm's rise. Some saws have a safety brake. It could be stuck. With the saw off can you move the chain by hand? When you rev the saw does it sound labored? The groove in the bar might be obstructed making the chain hang up. If it revs freely but the chain doesn't move, your clutch could be worn. .
With the cove off you should be able to turn the sprocket easily, if not the brake is on, grab the hand guard and pull it fully back toward the rear of the saw until the brake clicks and the drum can be turned.
Do you have the proper gas-oil mix? It should be 40:1, which is 3.2 oz of oil/synthetic oil to 1 gallon of fresh gasoline. Make sure you push in the choke after starting it. Also make sure the chain brake is off (chain should move freely by hand when the saw is TURNED OFF.) If gas mix is right, choke is turned off after starting and brake is off, take it back to the dealer/store.
1:the chainsaw have a emergency brake to reset pull the protection right in front of your hand over the saw
2:you need to check the oil sistem in the chain maybe the chain is dry
3:the chain is worn or a bad tension adjustment check this
i hope this help to you
Most saws are pretty much the same procedure.....here's a decent link. Some saws will give trouble if the brake is on when you remove the side cover so make sure the chain moves freely before removing the side cover.
Here's one on tensioning the chain...
OK. This is simple. Either the chain brake is engaged or the chain is too tight. Start by pulling back on the chain brake toward you. There should be a "click" if the brake was released. If the chain is still immovable, try resetting the chain tension.
1. remove the spark plug wire2. loosen the two clutch cover nuts3.hold the bar nose up and loosen the tension adjustment screw until the chain moves freely without becoming loose.4. tighten both clutch cover nuts with the bar held up.5. Pull the chain around the bar by hand. Loosen the adjustment if you feel tight spots.6. When the chain is properly tensioned,tighten clutch cover nuts securely. Do not overtighten!7. Check chain brake operation and release.8. Replace spark plug wire and operate saw. Hope this solution will Fixya.