MaddBomber
ArboristSite Operative
So, after having issues with my 550xp Mk2 (my first personal AT), and I've done a bunch of research to better understand it.
Firstly, the recalibration procedure is frickin weird. Maybe I'm wrong, but what I've read is the firmware samples cutting conditions after 30 seconds of WOT under load? If not under load it restarts the sampling process? Why? That's concerning to me, especially because my particular saw is a 50cc that'll be used primarily for limbing. I doubt it'll have many 30+ second cuts.
Secondly, the hot start process. What? Pump the bulb, set to choke, then click down to high idle, then pull. That's a good idea? Really?
I've grown up with just pulling a warm saw and it fires. From JRed 2071, 371/372, 346, 260/026, 660, 461 and even an old Mac 10-10. Just pull.
My 3 Stihl M-Tronic saws (261,362,462) have been flawless, and I believe they sample conditions multiple times a second...though, I could be wrong.
The recalibration procedure is easy and can be done in the back of a truck.
And the hot start is simply pull the starter....and it starts.
Why change it?
Now, I'm not knocking the performance and feel of AT saws, and actually prefer the 550 over the 261.
Maybe I'm wrong, but I can't understand the thinking.
Firstly, the recalibration procedure is frickin weird. Maybe I'm wrong, but what I've read is the firmware samples cutting conditions after 30 seconds of WOT under load? If not under load it restarts the sampling process? Why? That's concerning to me, especially because my particular saw is a 50cc that'll be used primarily for limbing. I doubt it'll have many 30+ second cuts.
Secondly, the hot start process. What? Pump the bulb, set to choke, then click down to high idle, then pull. That's a good idea? Really?
I've grown up with just pulling a warm saw and it fires. From JRed 2071, 371/372, 346, 260/026, 660, 461 and even an old Mac 10-10. Just pull.
My 3 Stihl M-Tronic saws (261,362,462) have been flawless, and I believe they sample conditions multiple times a second...though, I could be wrong.
The recalibration procedure is easy and can be done in the back of a truck.
And the hot start is simply pull the starter....and it starts.
Why change it?
Now, I'm not knocking the performance and feel of AT saws, and actually prefer the 550 over the 261.
Maybe I'm wrong, but I can't understand the thinking.