Weird 260 issue

[stihlmadasever]

MS260 recently had new clutch.The problem is once the chain is correctly tensioned the saw wont run the chain...you need to slacken it off till the chain is really loose and gradually retension it till it runs on the guidebar.After a couple of revs the chain seems to self over tension ...so your having to slacken it off again and retension.Sprocket,guidebar and chain all in good nick.

Its a ball buster-i almost bounced it off a wall today.

Any ideas..?

Cheers folks

[spudulike]

MS260 recently had new clutch.The problem is once the chain is correctly tensioned the saw wont run the chain...you need to slacken it off till the chain is really loose and gradually retension it till it runs on the guidebar.After a couple of revs the chain seems to self over tension ...so your having to slacken it off again and retension.Sprocket,guidebar and chain all in good nick.

Its a ball buster-i almost bounced it off a wall today.

Any ideas..?

Cheers folks

 

Put the old clutch on and see if it cures the issue. Was the clutch an OEM unit or aftermarket? Is the needle bearing OK with no play in it? Is the oiler working OK? Has the bar nose sprocket got any play in it if you hold the sprocket top and bottom and pull it to and forth?

[stihlmadasever]

Put the old clutch on and see if it cures the issue. Was the clutch an OEM unit or aftermarket? Is the needle bearing OK with no play in it? Is the oiler working OK? Has the bar nose sprocket got any play in it if you hold the sprocket top and bottom and pull it to and forth?

 

Our mechanic changed the clutch so id say,going by his history,the clutch and needle bearing would be fine and genuine stihl parts.The old clutch was scrapped as one of the springs had snapped.

I ll check the guidebar nose sprocket for play tomorrow,i only checked if it was free running.

Cheers spud