The truth about Auto-Tune and M-Tronic
- Thread starter Hustihler
- Start date
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Chris-PA
Where the Wild Things Are
The only advantage of injection would be if you could do direct cylinder injection - that would be huge on a 2-stroke, but you have to lube the crank and you need high pressures. All doable, but I suspect the size, weight and cost of the equipment to do it would be a problem on a hand held chainsaw. Keep in mind that strato combined with a feedback fuel system is already a radical advance compared to non-strato engines with carbs that can't hold a constant fuel/air mixture, and it's only now getting out there. At some point you get to diminishing returns.
Arbonaut
Go Climb It
I just put together a 441. I'll give it a try in about five tanks, Stihlman. I subscribed to your YouTube channel, Man. Killer Stuff.
Yup. Austrian Two Stroke stuff. They do motocross bikes, too. I think some one off Can-Ams came with Rotax. I bet Officer's Match knows.
SawTroll
Information Collector
Most likely true, so any attept to make fuel injected saws would likely end the same way as Dolmars attempt to make four-cycle ones = down the drains....
SawTroll
Information Collector
A few pounds of weight doesn't matter much on a snowmobile, but it surely will on a chainsaw!
Darn near all Can-Ams had a Rotax engine, geesh taxed trying to think of the models that didn't back in the day.
Jumped my first tractor on a TNT125.........things that happen when you and your bike encounter a tractor at the strangest time.
TommySaw
ArboristSite Guru
stihl has a fuel injected saw out right now, the TS500i chop saw, very good trottle response for a chop saw
SawTroll
Information Collector
Well, the weight doesn't matter as much on a chop saw - but I will look it up.
Anthony_Va.
XPW Fan Club
They are awesome ATVs too. All of the newer ones I've seen have Rotax engines. The 650s will absolutely smoke a 750 Suzuki or Kawasaki ATV.
rullywowr
ArboristSite Operative
Back to the OP's question: I have the 550XP and have had no issues other than it not idling well during the first couple tanks. I have about 12-15 tanks through it now and it cuts awesome. Keep the chain sharp, don't pinch the bar, and this little guy just keeps wanting more. I use it for firewood gathering, limbing, and bucking rounds to put in the splitter. Here is it on my latest adventure...we got a "boatload" of firewood....
View attachment 254340
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spike60
Addicted to ArboristSite
Firewood by the boatload! Haven't seen that one yet. Very cool! 
Mountainman6288
ArboristSite Operative
Firewood by the Boatload
What kind of bait do you use ?
What kind of bait do you use ?
Officer's Match
Addicted to ArboristSite
Firewood by the Boatload
What kind of bait do you use ?
Why bologna of course. :msp_wink:
rullywowr
ArboristSite Operative
For bait I used 93 octane Sunoco with some Husqvarna XP and a full chisel 21 LPX 72 link.
:yoyo:
:yoyo:
SawTroll
Information Collector
Best .325 chain out there, and the right one on that saw! :msp_thumbup:
Hustihler
ArboristSite Operative
I'm the OP and I just wanted to update the status of this thread. My 550xp and 562xp are still at the dealer and we've been in contact on a weekly basis, they called me yesterday to inform me that my 550xp is repaired and that Husqvarna is sending me a brand new updated replacement 562xp next week. I'm headed to the dealer tomorrow to get more details and I'll update this thread as I get more info. It's been long time without my saws, but I'm glad Husqvarna and my dealer are standing behind their products.
auto tune & m-tronic
Subscribed!
Subscribed!
Bought my dealers 562xp demo last Monday. Wasn't expecting to own one of these so far, but the price was good. He told me this is one of the best running 562's he has sold. Been solid so far doing storm damage and it's not afraid of heights either.:hmm3grin2orange:
mrnecsteve
ArboristSite Operative
Back to the OP's question: I have the 550XP and have had no issues other than it not idling well during the first couple tanks. I have about 12-15 tanks through it now and it cuts awesome. Keep the chain sharp, don't pinch the bar, and this little guy just keeps wanting more. I use it for firewood gathering, limbing, and bucking rounds to put in the splitter. Here is it on my latest adventure...we got a "boatload" of firewood....
View attachment 254340
I used to go camping next to a river with my 10 foot john boat. I would be hard pressed to find a single branch of firwood at the campground....so I would go scavenging a couple miles downriver.
One day , I loaded it up full of driftwood.There was no place left to sit ,except at the spot next to the motor
....which ran out of gas.
It took three hours to row back, after moveing all the wood off the center seat.
