400 cm sprocket

[slaughter]

I have a new ms 400 with a 20” bar it came with a 8T Sprocket with a 33rs72 yellow dot chain. I was thinking about putting a 9T or 10T sprocket but not sure it will pull it.

 

[huskihl]

It originally came with a 7. Definitely slower with an 8 or 9 with anything resembling a good chain

 

[user 122190]

Yeah, mine new, came with a 7 tooth sprocket also. Moving to 8 and above will speed up the chain speed, but at the cost of losing some torque in the deep cuts. Personally, there's nothing wrong with sticking with the 7 as from the factory.

 

[singinwoodwackr]

Waste of $ and time, imo. And the 9 may not even fit in the newer style cover…oh, and you’ll need a 73dl chain.
been there, tried all that…sold the sprockets

 

[computeruser]

You’ve never run a 3/8” 9t or 10t, have ya?

Save that for the hotsaws.

 

[slaughter]

I have a new ms 400 with a 20” bar it came with a 8T Sprocket with a 33rs72 yellow dot chain. I was thinking about putting a 9T or 10T sprocket but not sure it will pull it.

The saw came with a 25” bar and a 8T sprocket. I put a 20” bar on it so figured I could up the speed with a 9T or 10T sprocket looks like plenty of room for the 9T. but this is why I’m asking before I start buying sprockets

 

[slaughter]

I

You’ve never run a 3/8” 9t or 10t, have ya?

Save that for the hotsaws. No I haven’t they have all come with the 8T but this is the first saw that I’ve down graded the bar. I have an 0290 super that pull a 20” bar fine with a 8T. I just replaced it with a 8T.

 

[huskihl]

Your chain isn’t sharp or your rakers are high then. With a sharp chain, a 60cc saw is going to be fastest and have better torque with a 7

 

[singinwoodwackr]

Your chain isn’t sharp or your rakers are high then. With a sharp chain, a 60cc saw is going to be fastest and have better torque with a 7

For full width cuts, yes but if used for smaller limbs the 8t will be faster.

 

[huskihl]

For full width cuts, yes but if used for smaller limbs the 8t will be faster.

Yeah I suppose it would.

 

[Evan]

Hell yes itl pull it. Though you might have make a longer loop or clearance bar to clear sprocket.

Would love to hear how this turns out. Might be the limbing monster we all dream of


7 on a 9 pin ive played with on 70-90cc saws

 

[Dennisthemenace]

The saw came with a 25” bar and a 8T sprocket. I put a 20” bar on it so figured I could up the speed with a 9T or 10T sprocket looks like plenty of room for the 9T. but this is why I’m asking before I start buying sprockets

I'm surprised such a small saw came from the dealer with a 25 inch bar and 8 tooth sprocket unless requested by the customer.
I'd leave the 20 inch on it and 7 tooth if you are cutting anything over 10 inch