Chainsaws

Carl,

Here is my tip of the day. Remember the acroynm "FACTS", this will always fix the problem, "Fuel, Air, Compression, Timing, Spark". You mentioned that you checked the fuel line and fuel filter, thats a good start. Did you check the condition of the primer bulb ?, a small hole or tear will make it inoperable and the saw will not start.  Oh, check that the primer bulb is moving fuel thru the fuel lines when pressing on it. Replace it if damaged, Ok, Now remove the top cover (loosen 3 screws) per directions of your Instruction manual, and remove top cover, and check air filter for cleanliness, or replace. If clean Air is going into the engine, also remember to check the exhaust. Just below the Safety brake handle, which you can move to the brake position, you will see a screen on top of the muffler, Is the screen clean? remove, one screw holding screen in place and slide screen out and clean. OK, compression to check remove the spark plug, and If you have a compression gauge install it into the spark plug hole and pull on the starter about 5 times, you should see the gauge go to 90 - 120 Psi,. OK. No gauge, carefully hold your thumb over the spark plug hole and pull on the starter you should feel the compression, If No compression then you may have a piston, piston ring, or other compression problem. Your saw will not start without compression, since its the engines starting compression that pumps the fuel in the carburetor. Timing also is probably not a problem unless you have completely disassembled your saw. OK, Spark, remove the spark plug and inspect it, see If its wet, again follow Instruction manual, check color of plug, and see If its a dark beige/ light brown color. If its Black or filled with carbon, replace the plug and check manual for correct spark plug number. Is the plug the correct number on the one you took out? If the plug is wet, then your engine is flooding, and you may need an adjustment of the carburetor, or have a carburetor problem. Repeat the steps outlined in "FACTS", the entire process should only take about 5-10 minutes. If you have Inspected the saw per my outline, and can't find anything wrong then take it to an authorized dealer, Usually If its just an adjustment, they will tweak it up on 5 minutes and your done. If its a carburetor problem, I would not recommend that you tackle that problem, unless your very familiar with small engines, take it to a authorized repair shop. Oh, I forgot to ask If the saw is still under warranty? If it is then after your quick inspection of anything obvious, take it to an authorized repair shop. Hope the above Info helps.

PS. I forget to mention to make sure you are using fresh fuel with the correct fuel to oil ratio per your manual.  Old fuel will collect moisture and water, and the engine will not start or run properly.