High Quality Chainsaw Bars Husqvarna Toys

562xp Salvage

eric4

Well-Known OPE Member
Local time
1:36 AM
User ID
21775
Joined
Dec 23, 2021
Messages
42
Reaction score
40
Location
Northern CA
Country flag
Howdy Y'all!

I snagged a 562xp in 'for parts' condition recently, hoping to build a strong runner for my dad. Upon arrival, the saw help pressure and vac, and the piston and cylinder seemed in good shape. It's a 2018 model

After disassembling, muffler mod, and cleaning, I noticed the crank has quite a bit of resistance at certain spots in the rotation. Seems like the bearings are shot, even though the case held pressure/vac...total bummer. Especially after looking at what goes into splitting the case and installing a new bearing and/or crank, I decided to throw down on a whole new shortblock Husqvarna 580663712 for $200

I feel a little crazy throwing money and parts at a saw that I've never heard running... But was coming here to seek for any tips on troublshooting the saw once it's reassembled with the new short block. My big issue is the ignition system/coil and carburetor. Is there any way to test the functionality of it outside of plugging it in at a service center?
 

hacskaroly

Super OPE Member
Local time
1:36 AM
User ID
27954
Joined
Nov 24, 2023
Messages
336
Reaction score
719
Location
Northern idaho
Country flag
My big issue is the ignition system/coil and carburetor. Is there any way to test the functionality of it outside of plugging it in at a service center?
You can vacuum test a carb to see if it will hold pressure with it outside the saw, this will test for leaks. If it ends up being tight (no leaks) then you will need to put it in the saw and test it at that point. For a coil, you can take a look at this video to see if the information might work for you:


I noticed the crank has quite a bit of resistance at certain spots in the rotation.

Like you said, possibly a bearing issue or potentially a bent crank. I had a saw that had some gunk in the cylinder that I could not see but it caused it to have problems when it got to a certain point of the rotation. I ended up flushing it with clean fuel a few times and got some debris out that was out of site. Once it was out everything rotated smoothly.
 

hacskaroly

Super OPE Member
Local time
1:36 AM
User ID
27954
Joined
Nov 24, 2023
Messages
336
Reaction score
719
Location
Northern idaho
Country flag
I feel a little crazy throwing money and parts at a saw that I've never heard running...
You are not the only one...I have a couple of hundred dollars in collecting parts for a 35 year old saw I found at the dump....I am sure there are others here in the forum that are in way deeper :D
 

eric4

Well-Known OPE Member
Local time
1:36 AM
User ID
21775
Joined
Dec 23, 2021
Messages
42
Reaction score
40
Location
Northern CA
Country flag
Hah! Thanks for the encouragement! Just watched the video - very informative. I'll run his process on the 562xp coil. I'm assuming even though it's autotune, the coil resistances are still within the range mentioned.

Cheers
 

pbillyi69

Pinnacle OPE Member
Local time
1:36 AM
User ID
8788
Joined
Feb 21, 2019
Messages
1,337
Reaction score
3,266
Location
USA
Country flag
i have easily spent more money on repairs for a saw that isnt worth what i spent on parts. welcome to the site there are a bunch of super solid people here and lots of good information.
 

eric4

Well-Known OPE Member
Local time
1:36 AM
User ID
21775
Joined
Dec 23, 2021
Messages
42
Reaction score
40
Location
Northern CA
Country flag
Well I worked on the 562xp today, installing a brand new bottom end. Put everything back together, and no luck on firing up...

Threw a little gas in the carb and she still didn't pop, but maybe that doesn't work with autotunes?

Now I'll be researching various carb and ignition tests. Hopefully it's nothing too costly
 

pbillyi69

Pinnacle OPE Member
Local time
1:36 AM
User ID
8788
Joined
Feb 21, 2019
Messages
1,337
Reaction score
3,266
Location
USA
Country flag
is it getting spark?
 

eric4

Well-Known OPE Member
Local time
1:36 AM
User ID
21775
Joined
Dec 23, 2021
Messages
42
Reaction score
40
Location
Northern CA
Country flag
is it getting spark?
Can autotune saws have their spark tested in the same fashion as a regular carb'd saw? I tried it with the old bottom end previously using the technique of grounding the plug on the cylinder head and pulling the cord. Got no spark then... Figured since the coil and flywheel looked clean-ish, that autotuned saws can't have their spark tested in that way.
 

pbillyi69

Pinnacle OPE Member
Local time
1:36 AM
User ID
8788
Joined
Feb 21, 2019
Messages
1,337
Reaction score
3,266
Location
USA
Country flag
auto tune saws should still make spark when you pull the cord. did you put a new plug in? check the plug wire make sure that it connected correctly and all of the contacts are not bent.
 

hacskaroly

Super OPE Member
Local time
1:36 AM
User ID
27954
Joined
Nov 24, 2023
Messages
336
Reaction score
719
Location
Northern idaho
Country flag
Well I worked on the 562xp today, installing a brand new bottom end. Put everything back together, and no luck on firing up...

Now I'll be researching various carb and ignition tests. Hopefully it's nothing too costly
I have a 562 that I am working on, coworkers pulled it apart, cannibalized a few parts and left the rest. I have it mostly put back together, missing an air filter, oiler worm gear and a chainbrake handle. I tried to fire it up and it had some mighty compression! Would not fire, though it had spark, I put in a new plug and grounded it against the cylinder and saw it sparking up. Not sure why it didn't fire or try to fire. Probably will do a pressure test and tear it down to make sure nothing in the cylinder is boogered up.
 

eric4

Well-Known OPE Member
Local time
1:36 AM
User ID
21775
Joined
Dec 23, 2021
Messages
42
Reaction score
40
Location
Northern CA
Country flag
Just checked for spark, and wasn't getting any. I cleaned the contacts of the ignition module, and flywheel, and still I'm not getting spark when grounding the plug on the jug.

This is all with a new NGK plug, but I guess I'll try the old one too, to rule it out.
 

eric4

Well-Known OPE Member
Local time
1:36 AM
User ID
21775
Joined
Dec 23, 2021
Messages
42
Reaction score
40
Location
Northern CA
Country flag
Attached are some flywheel pics as well as the ignition coil contacts. There defiantly is a little corrosion on the contacts... Think the coil is the culprit?

20240312_104214.JPG20240312_104202.JPG20240312_104237.JPG
 

big_eddy

Super OPE Member
Local time
4:36 AM
User ID
15263
Joined
Jan 5, 2021
Messages
87
Reaction score
300
Location
Quinte - Ontario
Country flag
Check the stop switch and wires. Should be an open circuit between the 2 wires on the push on terminals and between one side and the chassis.
 

eric4

Well-Known OPE Member
Local time
1:36 AM
User ID
21775
Joined
Dec 23, 2021
Messages
42
Reaction score
40
Location
Northern CA
Country flag
Just went thru the wiring and everything seemed in decent shape, and attached properly including the ground wire.

I read that autotunes may not send spark if the ignition coil doesn't recognize the carb? Is this true?

Cheers,
Eric
 

beaglebriar

The Peanut Gallery
GoldMember
Local time
4:36 AM
User ID
377
Joined
Jan 1, 2016
Messages
18,662
Reaction score
104,644
Location
Warren Center, PA
Country flag
Just went thru the wiring and everything seemed in decent shape, and attached properly including the ground wire.

I read that autotunes may not send spark if the ignition coil doesn't recognize the carb? Is this true?

Cheers,
Eric
The carb must be programmed to jive with the coil. I do not know if that would completely kill spark.
 

eric4

Well-Known OPE Member
Local time
1:36 AM
User ID
21775
Joined
Dec 23, 2021
Messages
42
Reaction score
40
Location
Northern CA
Country flag
The carb must be programmed to jive with the coil. I do not know if that would completely kill spark.
Sounds like I'll need to take a trip to the dealer and pay a $40 diagnostic charge at this rate. I'm assuming the carb and coil can communicate, since they were on the same saw originally, but maybe my saw was assembled with random parts and sold as-is... A bit stumped on any other solutions at this point.
 

bigbadbob

Here For The Long Haul!
Local time
1:36 AM
User ID
454
Joined
Jan 9, 2016
Messages
1,912
Reaction score
12,424
Location
Interior BC Canada
Just checked for spark, and wasn't getting any. I cleaned the contacts of the ignition module, and flywheel, and still I'm not getting spark when grounding the plug on the jug.

This is all with a new NGK plug, but I guess I'll try the old one too, to rule it out.
Did you check coil gap to flywheel
 
Top