Need your expert opinions and experiences with the MS-441 CM and its idling behavior.
Here's my problem. After bringing down a few trees and doing a bit of limbing and bucking, I'll set my saw down and let it idle while I move a little debris out of my way...usually around 20-30 seconds. As soon as I grab it and pick it up off the ground she'll stumble and die every time. It starts right up again and runs fine, but if I set it down, and let it idle for 20-30 seconds, as soon as I grab it and pick it up...it dies again. This happens nearly every time I set the saw down.
I took it to one dealer who said they couldn't recreate the problem. I took it to another dealer who thought the "metering diaphragm was a little stiff." The Stihl head office in Denver gave the shop to go-ahead to replace the entire carb, which they did.
I got a chance to take out a medium-sized honey locust tree the other day, and sure enough, every time I set the saw down, idled it, and picked it up again, it died.
Seems to happen regardless of the saw temperature, but slightly more common when the saw is warmed up. And the saw has done this since it was new.
A fellow at the Stihl head office in Denver sent me the M-Tronic carb reset procedure and asked that I try it in the field to see if it made any difference. I performed the routine as described, and it made no difference at all. Still dies when you pick it up.
Here's a video of the behavior:
Conditions: ~35-degrees, elevation ~7800', TruFuel 50:1.
So, the questions:
1. M-Tronic owners: Have you seen your saw do this? Does your saw hold a nice sturdy idle all the time?
2. Anybody have any idea what's going on and how to fix it?
Intermountain Stihl in Denver has been really great to work with, and they said to send it down to them if it keeps exhibiting this behavior, which I plan to do in the next week or so, but in the meantime I thought I'd poll you guys and see what you thought.
Any insights are appreciated.
Thanks in advance.
Here's my problem. After bringing down a few trees and doing a bit of limbing and bucking, I'll set my saw down and let it idle while I move a little debris out of my way...usually around 20-30 seconds. As soon as I grab it and pick it up off the ground she'll stumble and die every time. It starts right up again and runs fine, but if I set it down, and let it idle for 20-30 seconds, as soon as I grab it and pick it up...it dies again. This happens nearly every time I set the saw down.
I took it to one dealer who said they couldn't recreate the problem. I took it to another dealer who thought the "metering diaphragm was a little stiff." The Stihl head office in Denver gave the shop to go-ahead to replace the entire carb, which they did.
I got a chance to take out a medium-sized honey locust tree the other day, and sure enough, every time I set the saw down, idled it, and picked it up again, it died.
Seems to happen regardless of the saw temperature, but slightly more common when the saw is warmed up. And the saw has done this since it was new.
A fellow at the Stihl head office in Denver sent me the M-Tronic carb reset procedure and asked that I try it in the field to see if it made any difference. I performed the routine as described, and it made no difference at all. Still dies when you pick it up.
Here's a video of the behavior:
Conditions: ~35-degrees, elevation ~7800', TruFuel 50:1.
So, the questions:
1. M-Tronic owners: Have you seen your saw do this? Does your saw hold a nice sturdy idle all the time?
2. Anybody have any idea what's going on and how to fix it?
Intermountain Stihl in Denver has been really great to work with, and they said to send it down to them if it keeps exhibiting this behavior, which I plan to do in the next week or so, but in the meantime I thought I'd poll you guys and see what you thought.
Any insights are appreciated.
Thanks in advance.