Husky 560 xp’s

[Doobop]

I got one and 2x550s and had no issues at all,regular service and good oil is all you need

Damn right Gary too many people use low quality oils.

If you’re not using aspen you really need top quality oil!

[spudulike]

1 hour ago, forest tink said:

 if it wasnt for the plug being new i would have guessed thats what the problem was right enough

And the other suggestions??

[forest tink]

On 02/12/2018 at 09:50, spudulike said:

And the other suggestions??

air filter like new,tank filter is new,carbs gauze had nothing of note in it and no perforations either

[spudulike]

When you say it splutters and stops are we talking about when it is left idling the revs slow and die or during heavy cutting, it dies? If you leave it idling on its side and loosen the fuel cap, will it continue to run OK.

Have you reset the autotune by cutting hard and continuously for 5 minutes? If you go from snedding to heavy cross cutting, the autotune will have set itself to lighter high rev use and then need time to reset to heavy cutting.

May be worth looking at the piston through the exhaust port or put a gauge on it to measure the compression.

 

[The Technician]

The 500 series of the Husqvarna line has always been a problem from the get go. When they first came out they were blowing the engine within hours. If you look at them, you can see that they are skinny compared to other models and brands. What husqvarna did is put the crankcase seals in the bearings, rather than having a seal on its own. They realized what was happening and changed the seal Rubber composition so it would take the heat. To find out if your engine is shot, take the muffler off and look at the piston and ring (s) if you see "bar codes" your engine is shot and needs to be rebuilt. The 500 series also needs to have the crankshaft bearings changed as those are where the seals are, so that means splitting the crankcase.  If you have no score marks, check your fuel filter in the tank. You should be able to blow quite easy in it with no resistance. If you need a new one, the part number is 503443201.

[spudulike]

The seals can be changed on the 560 without splitting the crankcases and these seals in bearings are commonly used on the 560XP, 576XP, 590XP, MS660, MS260, MS650, MS460, MS440, 346XP, 550XP etc etc! They are all removable and can be replaced without removing bearings or splitting cases! 

[spudulike]

The 560 and 550 are "skinny" due to the fact the transfers being situated at the front of the saw making the cylinder thinner - like the MS461!

[adw]

Changed the seal material? there was a change to the bearing cage material, there is nothing wrong with having a replaceable seal in the bearing, yes the early saws did have some issues with the bearing cages, and this did require splitting the crankcase to replace the bearings, a short block was introduced with the later bearings and an addition screw in the crankcase, this to further improve the saw and reduce labour time to replace components, there was also increased tolerances on the crank journals for a better interference fit of the bearings, the drive side of the crankcase is now in aluminum, this is to make this side more ridged and keep screws tighter, the top cover is now better vented to keep the carb cooler, my personal preference is to remove the carb heater on G saws, again to keep the carb cooler, in the early days there was a carb and ignition change running a different voltage, this to stabilize the running,the tank breather was also moved away from the air filter housing, this to stop fuel vapour entering the engine and causing hot start issues, there has been an air filter change to a 25 micron filter, this to increase the filter capacity, some G models will have a black filter 80 micro, this is classed as a winter filter, a yellow framed filter was fitted to the standard machine 44 micron, now replaced by the orange filter 25 micron, other improvements were made, stronger clutch, bushes in the oil pump fitted holes, a new sprocket with better tolerance along with a new bearing, this was to improve straight line cutting. Improved muffler internals, improved piston with moved ring peg. All in all the 560xp is now a very reliable saw, and a challenger to any other make and model, over and out.

[Stubby]

9 hours ago, adw said:

Changed the seal material? there was a change to the bearing cage material, there is nothing wrong with having a replaceable seal in the bearing, yes the early saws did have some issues with the bearing cages, and this did require splitting the crankcase to replace the bearings, a short block was introduced with the later bearings and an addition screw in the crankcase, this to further improve the saw and reduce labour time to replace components, there was also increased tolerances on the crank journals for a better interference fit of the bearings, the drive side of the crankcase is now in aluminum, this is to make this side more ridged and keep screws tighter, the top cover is now better vented to keep the carb cooler, my personal preference is to remove the carb heater on G saws, again to keep the carb cooler, in the early days there was a carb and ignition change running a different voltage, this to stabilize the running,the tank breather was also moved away from the air filter housing, this to stop fuel vapour entering the engine and causing hot start issues, there has been an air filter change to a 25 micron filter, this to increase the filter capacity, some G models will have a black filter 80 micro, this is classed as a winter filter, a yellow framed filter was fitted to the standard machine 44 micron, now replaced by the orange filter 25 micron, other improvements were made, stronger clutch, bushes in the oil pump fitted holes, a new sprocket with better tolerance along with a new bearing, this was to improve straight line cutting. Improved muffler internals, improved piston with moved ring peg. All in all the 560xp is now a very reliable saw, and a challenger to any other make and model, over and out.

All this and my 2011  model is still going strong ! ?

[spudulike]

Yes, the wonders of a muffler mod getting rid of excess heat!