My husband is using a chainsaw or trying too. I know nothing about this so bare with me. When he pulls the handle thingy to start it, it will start and hold for about 5 seconds max, than cut off. It almost sounds like a car flooding with gas. It is full of gas. It also looks like when it goes to recoil, it punches the handle back out and thats when it dies. i know thats not very helpfull but any ideas?
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Re: won't stay running
Every year the spark plug must be replaced on chainsaws for the best performance.
So your current plug is probably fouled or has an incorrect gap from last years use.
Record your chainsaw's make and model number then go to your local large hardware store and to the lawn area, they will have a replacement spark plug. And if you don't have a ratcheting socket wrench set with spark plug removal socket, this is a great time to get one. the size will be 5/8 inch.
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1st add fuel/oil mix to fuel tank , then top off oil tank with bar oil , place saw down on flat surface , press 'ON" button above trigger handle to ON (its marked on case) then pull out blue choke handle till it clicks and stays out , press primer bulb with thumb 8 to 10 times bulb will become harder to press as it fills carb , push chain brake forward (on) ` place left hand on top of saw and right hand on start cord , hold saw down firmly and pull cord vigorsly several times till it sort of starts (sound) , squeeze trigger in and pull cord once more , saw should take off running , chain wont move ,walk to wood pile then disengage the chain brake and cut wood , if saw fails to start after this procedure then there must be a fault in saw , consult a exp small engine dealer for repairs
To lock the choke on:- 1. depress dead mans trigget on top of back handle 2. squeeze throttle trigger fully in. 3. slide on switch fully down to 'full choke' position. 'it should stay there'. 4. Pull saw over until it fires once. 5. click 'on' switch up one position to 'half choke' 6. pull saw over again, saw should start running and be revving high. 7. 'blip' throttle, saw should stop revving and run on tick over.
It may be running very rich, make sure the air filter is clean, if ok. check the spark arrestor in the muffler outlet ( if fitted ) has not carboned up, if ok, check the exhaust port is not blocked with carbon.
I suggest taking the handle apart to see if anthing is blocking the action of the trigger from inside, like some debris. Then see if the throttle cable moves if you pull it. If necessary keep tracking it back to the carburetor, maybe there is a piece of debris in there blocking the throttle lever on the carburetor.
If this machine has a saftey chainbrake it may well have activated, to de activate grab the front hand guard and pull it fimly back to the top handle of the saw, this will de activate the brake, now try again.
The choke system is connected to the half throttle position, if you lift the throttle trigger the choke pull will automatically return, whilst trying to start do not lift the throttle trigger, the starting procedure is, pump the primer bulb as many times as it takes to 3/4 fill the bulb, pull the choke pull fully out, this will switch the saw on and engage the half throttle, crank the engine until it fires once, do not continue to pull,it will actually not run on full choke, if you do continue to crank with the choke fully out, you will very quickly flood the engine, now push the choke fully in, now crank the engine until it fires up, lift the throttle trigger once, this will dissengage the half throttle, and it should now come down to idle.