New ms261???

[GrahamW]

My understanding of the clutch issue with the MS261 is that there have been continual problems with the factory fitted rim sprockets damaging the crank shaft in double-quick time. I believe they now come fitted with a spur sprocket as standard and there are no problems with these.

 

Hopefully the M-tronic wil sort out any overrunning / cutting out issues - I certainly haven't heard of any problems with the MS441 CM

[SawTroll]

My understanding of the clutch issue with the MS261 is that there have been continual problems with the factory fitted rim sprockets damaging the crank shaft in double-quick time. I believe they now come fitted with a spur sprocket as standard and there are no problems with these.

 

....

 

 

How can a rim hurt the crankshaft, when it is sitting on the splines of the clutch drum?

 

The new 2014 thing is the CM (M-thronic).

 

 

I wouldn't want a MS261 regardless if it was trouble free, as it simply isn't what a 50cc saw should be. Too bulky and heavy, and the inboard clutch makes it not handle wsll for limbing etc. The PS5105 partially shares those mistakes.

[GrahamW]

How can a rim hurt the crankshaft, when it is sitting on the splines of the clutch drum?

 

The new 2014 thing is the CM (M-thronic).

 

 

I wouldn't want a MS261 regardless if it was trouble free, as it simply isn't what a 50cc saw should be. Too bulky and heavy, and the inboard clutch makes it not handle wsll for limbing etc. The PS5105 partially shares those mistakes.

 

Not the rim sprocket itself, but the clutch drum that comes with it. There have been no problems with the clutch drums of spur sprockets, (at least that I have heard of) however. I'm no expert on the engineering side of things, but I know of several contractors and dealers who have had much experience of this issue. There is a suggestion that it could be down to manufacturing tolerances, but you would expect Stihl to be on top of it by now.