Echo CS-400 Chainsaw Muffler Mods

[Magnumfloyd]

Is one turn out a good starting point for the h carb neddle after doing a muffler mod.

 

[mountainlake]

No 3-1/2 turns out on both the H@L on the newer Echo saws. Must have finer threads or a different tip than older saws. Steve

 

[Magnumfloyd]

I meant one past the stock setting but I'll turn them in then back the 3 1/2 saw is new never ran.

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[mountainlake]

Yes 1 turn out past stock should be rich make sure it really blubbers, then lean out till it cuts the best in bigger wood. I think most end up around 1/2 turn out from stock. Steve

 

[Magnumfloyd]

Thanks for the info mountain lake this is one strong little saw modded never ran stock though. 3 1/2 was a little much on the l

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[mountainlake]

When stock even with proper tuning they are just average, big increases with the muff modd. Steve

 

[stubnail67]

like!!!

When stock even with proper tuning they are just average, big increases with the muff modd. Steve

think im going to get a used one and modd it soon what size bar ya all using the 18 or a 16?

 

[Ironhand]

think im going to get a used one and modd it soon what size bar ya all using the 18 or a 16?

16" works well.

 

[Magnumfloyd]

I'm very pleased with the 18" bar and have used all 18 +

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[brokenbudget]

for balance and power, the 16" is best for this saw. run some 91vxl oregon chain and she'll cut very well

 

[dboyd351]

Subscribed

 

[Magnumfloyd]

Did the muffler mod now I have a squeal.

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[PLMCRZY]

Did the muffler mod now I have a squeal.

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A squeal????


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[Magnumfloyd]

Yeah at idle

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[fische08]

related question, I've seen a few people mention that the screw caps help hold the screws from creaping, have any of you experienced this or know that it is false(I have a newer 2011 model)? I'm just trying to figure out how I will get the caps off and if I want to preserve their functional condition before I do this mod.

 

[PLMCRZY]

Yeah at idle

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Ok why don't you either tell us where the squeal is coming from, if it stops when you give it gas or gets worse.

None of us can read your mind and tell you what's wrong with it when all you say is "squeal at idle". We need a lot more info to help you. Your obviously doing something wrong since this is the 2nd saw you made "squeal"


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[PLMCRZY]

related question, I've seen a few people mention that the screw caps help hold the screws from creaping, have any of you experienced this or know that it is false(I have a newer 2011 model)? I'm just trying to figure out how I will get the caps off and if I want to preserve their functional condition before I do this mod.

I popped mine off and threw them in the trash, they never moved on me.


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[Magnumfloyd]

squeals at idle goes away when the clutch locks up all I did was drill the cat out with a taper bit and cleaned all the shavings out and bolted back on and richened it up.

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[blkcloud]

I pulled the muffler off my cs4400 this evening.. all ready to rip the guts out.. to my surprise there was nothing in there.. from what I could tell it was pretty much a hollow can with a side pipe going into the screen and deflector, I took the screen and deflector off but didnt notice any difference.. Is there any way to mod this muffler? thanks!

 

[rmotoman]

If the muffler is same as the 510/520 you have to cut the tube out of the muffler. It is to small and restricts flow.