How to Test a Small Engine for Spark
If your small engine isn't starting, you'll need to diagnose many issues including the spark plug. This video walks you through the steps of how to test for a spark using a spark tester.
The 33302102G washer and 32901154G retaining ring that hold on the chain drive gear had been lost and the chain had damaged the plastic chain cover.cover
I reinstalled the chain on the chain bar and set these two pieces in place. Then I threaded the chain around the drive gear and placed the flat washer on top, followed by installation of the retaining ring. To install the retaining ring, you need a special tool called a \"snap ring plier\", which spreads the inner radius of the ring to a large enough diameter so that it will fit over the drive shaft. After all this was done, I installed the new plastic cover over the drive gear, and then tensioned the chain per the owner\'s manual instructions.
The plastic tank that contained the chain bar oil was cracked and was leaking.
Remove the cover for the chain and bar. Remove the chain and bar. Prepare to remove the red plastic cover on the side of the chain saw by unscrewing about 12 black screws. Then remove the drive sprocket by first taking off the snap ring with snap ring pliers, then lifting off the washer and sprocket. Now you can lift off the red plastic cover on the side of the saw. The handles will also come off since the same screws hold them on as hold on the red plastic cover. Now remove the round black plastic cover by unscrewing three screws and lifting off the cover. Now remove the black ribbed plastic bearing assembly by prying up at several places around the circumference with a screwdriver. You can now see the hose from the old oil tank. Pull it off the fitting and install the new oil tank by pushing its hose onto the fitting. Reassemble in the opposite order of disassembly as described above.