[Edit...after posting, I realized that I made an error in the title. I don't know how to edit the title. It should read: 562XP and not 572XP]
I found a local advert for a "like new" Husqvarna 562XP with an asking price of $400. I went to look at the saw and took my compression tester. The saw looked fine and had a 2018 build date. So far, so good. Unfortunately, I brought the wrong spark plug adapter for the compression tester, so I didn't use it. The saw took a few more pulls than what I've come to expect from Husqvarna, but it eventually started. It didn't want to idle well when cold, but the idle smoothed out when the saw warmed up. The saw ran fine and seemed to accelerate well. Included was a 24" Husky branded bar and a fairly new chain. I made a deal for $340 and took the saw home. One the drive home, I was congratulating myself for such a great deal but, perhaps, my back-patting was a bit premature.
Once at the shop, I put the compression tester on the saw and the results surprised me. Very low -- only 75 psi. What the freak?! I double checked the de-comp valve and the seal on the tester in the plug hole...no change. 75 psi. So, I pulled the muffler and I saw some very minor scoring on the piston. The rings did not look bad didn't appear to be too mucked-up in the piston. Damn. If the cylinder pressure is 75 psi, I'm surprised that the saw started and ran as well as it did. Hmmmm. I wonder if my compression tester is faulty. I may have check that.
So, I need to tear the top end off and see what I've got going. Right now, I don't know why the piston is scored. Straight-gassing comes to mind, but I can't know that yet. The saw seller had absolutely no idea about the saw's history, other than her husband bought the saw 3 years ago. Sadly, her husband died from COVID 3-4 months ago and she is now getting around to selling his stuff.
I can buy an OEM Husky cylinder / piston complete assembly for about $150. Once I pull things apart, I will need to make a decision. So here is the question to the group: If I do need a new piston and cylinder, is there any size upgrade possible for this little saw? The next size up is a 565 but I have no idea if the bottom end would be compatible with that particular piston and jug. Any suggestions or ideas?
JQ
I found a local advert for a "like new" Husqvarna 562XP with an asking price of $400. I went to look at the saw and took my compression tester. The saw looked fine and had a 2018 build date. So far, so good. Unfortunately, I brought the wrong spark plug adapter for the compression tester, so I didn't use it. The saw took a few more pulls than what I've come to expect from Husqvarna, but it eventually started. It didn't want to idle well when cold, but the idle smoothed out when the saw warmed up. The saw ran fine and seemed to accelerate well. Included was a 24" Husky branded bar and a fairly new chain. I made a deal for $340 and took the saw home. One the drive home, I was congratulating myself for such a great deal but, perhaps, my back-patting was a bit premature.
Once at the shop, I put the compression tester on the saw and the results surprised me. Very low -- only 75 psi. What the freak?! I double checked the de-comp valve and the seal on the tester in the plug hole...no change. 75 psi. So, I pulled the muffler and I saw some very minor scoring on the piston. The rings did not look bad didn't appear to be too mucked-up in the piston. Damn. If the cylinder pressure is 75 psi, I'm surprised that the saw started and ran as well as it did. Hmmmm. I wonder if my compression tester is faulty. I may have check that.
So, I need to tear the top end off and see what I've got going. Right now, I don't know why the piston is scored. Straight-gassing comes to mind, but I can't know that yet. The saw seller had absolutely no idea about the saw's history, other than her husband bought the saw 3 years ago. Sadly, her husband died from COVID 3-4 months ago and she is now getting around to selling his stuff.
I can buy an OEM Husky cylinder / piston complete assembly for about $150. Once I pull things apart, I will need to make a decision. So here is the question to the group: If I do need a new piston and cylinder, is there any size upgrade possible for this little saw? The next size up is a 565 but I have no idea if the bottom end would be compatible with that particular piston and jug. Any suggestions or ideas?
JQ