The primer bulb had disintergrated with age, so I rigged up a needleless syringe (for giving cats their liquid medication) with a small, stiff, narrow piece of plastic tubing from a can of carburetor cleaner spray. Stuck the tubing into the end of the syringe so it can pull in a few CCs of fuel from the gas tank to squirt into the primer hose unattached from the fuel cap. Attached the hose back on the cap and screwed the fuel cap back on snug. Half choke, ignition on, pull, pull, pull, and it cranks up. Burned off all the old gas still in the carburetor with a lot of smoke, but it runs great with fresh fuel.
The primer bulb on this one in the video is on the side. Mine is located right on top of the fuel cap. But, they both sound the same.
Also, had to take the old spark plug and using a tiny jeweler's file, scraped off all the dried gunk on the terminal end. A couple of minutes later it is shiny as if it was brand new, I reset the gap to .032" and put a little anti-sieze around the threads and put it back on the chainsaw firmly capped.
The cheapest primer bulb found on the 'Net was around $20 at Amazon (with shipping). I knew there had to be a cheaper way to solve this problem. Took off the fuel cap and looked at the primer tube and asked myself what exactly is going on with the primer bulb, attached tube, and the port in the carburetor anyway? How are they synced? Can there be a work around? YES!
Cut up the remainder of the tree limbs left by the tornado that passed by the house last April with the old Homelite to clear out any remaining old gas with fresh, treated gas. Got a little firepit in the backyard by the tiny work shed and sometimes beans are cooked on it. Camp beans are tasty.
Well, all there needs to be done now is tune the H and L on the CS 370 carburetor and all three chainsaws are running good as new. Thank you, God, for ICS schools back in the 1990s. That little course in small engine repair and the motorcycle repair course has saved me a lot of cash and trips back and forth to small engine shops.
It was a slow morning that turned into a really good afternoon.