I have checked the carb, the fuel filter, the air filter, put in fresh mixture, checked spark plug, and the fuel cap and all appear fine. Chain saw worked to cut down tree but broke down while cutting limbs. I am using my electric drill to force motor instead of pulling on rope constantly but motor is not starting. I empty the gas tank and put in straight gas and it ran I then added the mixture to it and now nothing. (this is when I am troubleshooting, not when cutting) Any solution to this problem?
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First I would start with the fuel filter, was that replaced too?, then I would make sure you have fresh gas and a new spark plug, Probably what I would suggest next is to pull your carb off and take apart and clean it with carb cleaner, most likely you will find dirt and possible small fragments from rotten fuel lines,partially plugging the inlet screen in carb, also your diaphram could be stretched, wouldn't hurt to pur carb kit in it while it is apart, I have just cleaned them before and been o.k. this should help you out
Start with basic tests, drain the fuel tank and fill with fresh fuel oil mix, remove and reolace the fuel filter on the edn of the fuel hose, check the fuel hose up to the carb for leaks, remove the spark plug, rest it on the side of the cylinder ( away from the plug hole ) cramk the engine and check if you have a spark.
There are very few things that will increase fuel consumption, blocked spark arrestor in the muffler ( metal gauze in the exhaust out let ) blocked air filter, part blocked exhaust port ( remove the muffler and check ) if the fuel tank is seperated from the chain oil tank with a gasket you may have a leakage between the two ( is the chain oil getting thinner and smell of fuel, other problems may be in the carb, leaking inlet needle, this will require a carb pressure test to prove, if you have a small bulb pressure tester, remove the fuel hose from the carb and connect the tester, put approx 2 psi in, the carb should hold this with no pressure loss.
I have this saw and really like it. Does the the primer seem to work? Most problems on these saws can be traced back to cracked fuel lines. Either tank to primer, primer to carb, or carb return back to tank. I would recommend it the saw it more than 3 years old to replace all the fuel lines. Total cost about $5. Buy your fuel line at Ace Hardware.
if you have a good compression,a strong enough blue spark and carburetion for the fuel air mixture try priming the engine(put small amount of gas in the spark plug hole)then start the engine.If the engine runs only the gas you put inside the cilinder there is a carburetion problem to find and fix.
let me know regards savumihai71
Clean carb. Pull apart and soak in carb cleaner. Blow dry with air nozzle. Make sure air filter is clean and plenty of air. Make sure spark plug is not gapped wrong and running to hot. Make sure oil/fuel mixture is accurate
Check fuel lines for stiffness & cracks'
Replace filter,plug,and fuel mixture.
If your lucky it might run.
If not check spark .
If spark is ok you may need to clean and rebuild carb making note of screw settings.
Also pull muffler and check for carbon build up.