550xp sux

[HumBurner]

I get it.
But A-tune vs M-tonic is somewhere I ardently disagree.
M-tonic can be recalibrated anywhere any time in under 90 seconds. A-tune requires a ten foot log, and sometimes takes multiple attempts.
M-tonic is user friendly, simple and very reliable. A-tune is overcomplicated, and loses its tune exponentially more.
So, it might be more sophisticated, but it's much less effective. When it works, it's awesome.. but the glaring issue is when it doesn't.
I didn't realize until recently, that the AutoTune recalibration processes isn't even in the owners manuals of some professional models.
What happened to Husqvarna??

They can sell more units due to failures by not fully or properly informing their customers of how to use their products.

Greed-driven Capitalism-101

 

[NSEric]

I dont believe you need to match carbs and coils or get updates on the 5 series huskys.
Proof of this is my buddys mark 1 562 that has a coil off his blown up mark 1 550. He simply bolted the 550 coil on it and ran it.
The saw's an animal which starts and idles better than stock hot or cold, it has cut a fair bit of wood since the coil swap. The dealer told us it'll blow up, he said he's not spending another cent on it and running it until it blows. It does seam to rev higher than stock so it might not last as long as it should.

 

[Tobystihl]

I dont believe you need to match carbs and coils or get updates on the 5 series huskys.
Proof of this is my buddys mark 1 562 that has a coil off his blown up mark 1 550. He simply bolted the 550 coil on it and ran it.
The saw's an animal which starts and idles better than stock hot or cold, it has cut a fair bit of wood since the coil swap. The dealer told us it'll blow up, he said he's not spending another cent on it and running it until it blows. It does seam to rev higher than stock so it might not last as long as it should.

No you don't need to match carbs and coils, it's only a new carb that needs dialing in.

 

[StoneyMeadowMaple]

Just for giggles have you checked to make sure the decompression valve isn’t leaking a little bit? Has it actually had a tear down to inspect?