.375" conversion for Echo cs4910?

[farminkarman]

Has anyone on here done a .325 to .375 conversion on an Echo cs4910 (same clutch as cs501p)? The saw in question has been ported and is quite healthy, so pulling .375 would be no problem....just having trouble finding the right rim sprocket.

 

[Nutball]

It takes the small spline rim.

Oregon's website is not looking good, and I can't find the rim on Frawley's either. Maybe too many people are buying bulk chinese copies that they quit making them

 

[Dolkitafreak]

Like said above they run small spline, same as 346xp, 550, etc. Good switch, they’re faster with 3/8!

 

[farminkarman]

It takes the small spline rim.

Oregon's website is not looking good, and I can't find the rim on Frawley's either. Maybe too many people are buying bulk chinese copies that they quit making them

For some reason I was thinking that the Echo had a unique size spline on their clutches. I stand corrected thankfully! Thanks for the input. My local dealer has the small spline Oregon sprockets in stock.

 

[Nutball]

Stihl has a unique extra small spline not compatible with oregon, but it can work in a pinch.