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Re: chainsaw wont fire
Is the spark plug wet (inside after trying to start it)? If dry, the carburetor isn't delivering fuel into the engine. Check the muffler to see if it is plugged. Is the carburetor firmly attached to the engine? Fuel and spark at the right time makes it go! Try squirting a little fuel into the carburetor throat. Might be loose screws on carburetor assembly.
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How old is ths fuel in the tank? If it is older than 2 months dump it and put in fresh fuel. Use some starting fluid sprayed into the carb and see if it fires on that. It may take a few sprays to pull the old fuel through the lines till the fresh fuel gets to the carb.
Engines require 3 things. Spark, compression and fuel. And chainsaw need 2-cycle oil mixed with the gas.
Assuming you have the right oil-gas mixture and a fresh batch of gas, and you didn't leave old gas in the saw all summer long since last November.
-Take off the dirty air filter and see if saw starts without filter. Do not run without putting in new filter. -Check exhaust port for mud dobber home or screen clogged with carbon and dirt -See if saw fires up after squirting WD-40 directly into carburetor -Check gas line >>> pull gas line loose and see if gas flows out of tank to carburetor -Take out spark plug > put finger over spark hole and pull cord >> do you feel suction that says you got compression? -Put spark wire back on spark plug >>> hold spark plug so threads touch bare metal part of spark plug hole >>> pull starter cord and see if spark shows between plug and saw >>> suggest you not hold metal part of spark plug while pulling cord [you'll understand why] -If spark plug shows spark, then your saw has spark ... so put in new plug and start fresh.
If your saw has compression, spark, and fuel it should start unless carburetor is gummed up because gas was left in tank. Here is the final trick. Start the saw while spraying WD-40 directly into carburetor and see if you can keep it going with the WD-40. This might take a helper. If this does not work, then carburetor is bad or gas line is clogged at carburetor. Time to take it to the shop.
you have to use the key and the leaver in just back from the key side then take out the bolt that holds the tank down 12 mm you have 2 hoses going to the carbs one is a vacume line the other is fuel remove from thank then slide tank back and you should be able to drain the gas out of the tank but if you huck up a fuel line to the pitcook and drain the fuel into a pail you wont have to remove the tank pull the spark plugs and put fuel in and trie to start it again you may have to do this a couple of time to prime the carbs
This could be caused by several things but most likely it is a cracked fuel line. The lines of these get brittle and break from vibration over time. First I would make sure I have spark by pulling the spark plug and put the plug boot back on the spark plug. Then with you foot holding the saw firmly in place, ground the spark plug on the metal portion of the engine block away from the spark plug hole. Pull the cord and see if the spark plug is firing across the tip. If so, I would look very closely for a broken fuel line.
hi , try this, take the spark plug out. and leave it out for awhile ,to dry out.1 hour,clean plug ,put it back in the machine.then take the air cleaner off, make sure it is clean for later,get acan of aerostart or starter fluid NOW SWITCH ON, CHOKE OFF THROTTLE IN START POSITION''''' FULL THROTTLE ,AQUICK SQUIRT OF AEROSTART INTO THE TOP F THE CARBY AND PULLTHE START ROPE 3 OR4 TIMES NO MORE ,THE ENGINE SHOULD FIRE OR START;;;; if it does not at least fire you may have to try anew spark plug,if it fires but does not start, pu ll the choke out 1/2 way and pull 1 or 2 times only or you may flood it again,giv it another squirt in the carby and try again but dont keep pulling the starter as you will get crankey when ite rope breaks .if it starts let it run for afew minutes stop it replace the air cleaner 1/2 choke pull the starter should go push choke rightin after a couple of pulls start it and go to work.Please if this doesn`t work come back and tell me what happened for we may have to make a couple of adjustments