Chain keeps stretching really quickly

[Juniors saw works]

i have had the tensioner screw of a Chinese 660 strip out there pretty crappy you should check that also

 

[James Sawyer]

That drive sprocket is the problem it amazing to me if that chain would even cut! Is the PTO getting hot? The chain picture in Harley post would be really hard on the PTO and you'll lose the seal and possibly the PTO bearing. I'd suggest changing both the sprocket and the chain as well

 

[Dennisthemenace]

Sprocket and chain are buggered and probably the bar also.

 

[Dennis Gauge]

This thread was started last September, 5 months ago. I would assume either they solved the problem or threw the saw in the trash.

 

[Piotr Pakuła]

grandson will read something about grandpa's saw ;-)