Chainsaw Freshening Up
Well, I got ahold of two 14" chainsaws through my Dad. He got them from a lady that was going to junk them because of starting issues. He gave them to me to see if I wanted to mess with them. This was some time last year, and I did some poking around to find the issues.
Now, there are pretty much two main areas that will cause a issue. Fuel, and spark. I always check for spark first. Do this by simply removing the spark plug, and while still plugged in hold it up to a grounded area, and roll the engine over. Don't touch anything that isn't insulated while doing this. If I get no spark I will always try a new plug. Most of the time that will fix it. If not I check the kill switch, then the crank trigger. Simple system, simple fixes.
If I have spark, I go to fuel. To much, or none... Easy way to tell is the spark plug again. Is it wet? If not, you ain't got fuel... On little 2-strokes like these I will look at the fuel lines. They ALWAYS dry out, and break. If those are good though, then you have to go to the carburetor. If it ain't lines, it is either plugged jets, or poor setup. Plugged up jets being the main cause of issue on larger 4-strokes as well...
If both of these things check out, then you can look at the valves, but that only applies to 4-strokes...
The first one was a simple spark plug, and old gas. It now runs great!
The second larger one was fuel lines. Well, at first... The lines run right into the tank, and that is where they broke. So it was simply sucking air...
I pulled the side cover off. This was done by removing the top cover, the pull cord assembly, and taking all the torx screws out. After this I popped the chain oil plug off for a second, and pulled the cover. Being careful of the gas, and safety. Then unplug the kill switch wires, and pulling off the one primer hose line that was still attached...
remove the old dry rotted lines, cut the new ones to length (Longer better then shorter lol), and run them. I took my trusty left handed scissors and tapered the end of the line to help run it into the tank. Then used a little pick, and forceps to run it in. Did this twice. Once for the supply, and another for the return to the tank from the primer.
Now after all of this, I go to prime it, and I have fuel...For a minute. Right up until the priming bulb got a crack and it sucked air...
So now I need to get a primer.
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Originally Posted by altec
