Can I run .404 on this roller nose?

[av8or3]

I have the same bar only mines a bit shorter...

Sure looks like it! Only yours is shinier.

 

[av8or3]

I spent most of the morning collecting wood but when I got back home I put the 8 pin sprocket on the P100. It came to me that way(8-pin) but I swapped it for a 7- pin because I figured the saw could use the extra torque. I was very surprised when it came to running it. The bigger sprocket did nothing to reduce any torque that I could tell. The saw just really smoothly blasted thru hard wood with little or no effort.
Since putting an 8 pin on a 500i and being disappointed with it I’ve been kinda soured to the 8- pin thing. My o66 seems to like it. And after today my P100 likes it. Was a pleasant surprise.
It’s probably a displacement thing. The 066 is 92cc (I think) and the P100 is 100cc. 500i is 78cc.

 

[Maintenance Chief]

I spent most of the morning collecting wood but when I got back home I put the 8 pin sprocket on the P100. It came to me that way(8-pin) but I swapped it for a 7- pin because I figured the saw could use the extra torque. I was very surprised when it came to running it. The bigger sprocket did nothing to reduce any torque that I could tell. The saw just really smoothly blasted thru hard wood with little or no effort.
Since putting an 8 pin on a 500i and being disappointed with it I’ve been kinda soured to the 8- pin thing. My o66 seems to like it. And after today my P100 likes it. Was a pleasant surprise.
It’s probably a displacement thing. The 066 is 92cc (I think) and the P100 is 100cc. 500i is 78cc.

Haa alot to do with where the torque band for the cut is I feel. I've used a 8 pin 3/8ths or .404 on a ProMac 700 (70cc) and it does fine with either same with a 394xp. If the HP band is high and torque low its gonna struggle .