Ms180 chirping

[redline4]

I have a 3 year old ms180. I use it for light thinning in my woods.
It has had quite a bit of fuel through it.
Towards the end of last winter, I noted a slight chirp at idle, near the muffler.
I forgot about it as it sat all summer, but just used it and went "oh yeah".

It didnt do it new that I recall. Starts, runs fine.
Its also completly stock as I was waiting for the warranty to expire to do a carb swap for adjustability and open up the muffler.

All fasteners are tight that I found.

I tried to catch it on video, but you cant really hear it on the vid.

So, is this normal on these?
Something to worry about?

One other thing, it doesnt always seem to do it at idle. Just sometimes.
Sort of sounds like a sparrow. In the muffler.

 

[beaglebriar]

I've had a couple old jonsereds that did it. I figured it was in the clutch.

 

[redline4]

You know, thats possible.
I think maybe it did it when the brake was on.
Im heading out to the woods now to do a bit of work.
I will see if that makes a difference.
Clutch isnt too far from the muffler on this little thing..

It doesnt have that ting, ting i'm used to hearing from a clutch though.

 

[beaglebriar]

You know, thats possible.
I think maybe it did it when the brake was on.
Im heading out to the woods now to do a bit of work.
I will see if that makes a difference.
Clutch isnt too far from the muffler on this little thing..

It doesnt have that ting, ting i'm used to hearing from a clutch though.

Yeah I've tried to eliminate the squeal with little luck but yours may be different.

 

[Chainsaw Jim]

Clutch bearing? Maybe it's dried out.

 

[redline4]

Clutch bearing? Maybe it's dried out.

Theres a thought that didnt cross my mind.

Going out to the woods turned into hooking a sled to the wheeler and dragging the kids around for a bit.

They are back in to warm up, so I will see if my wife gives me the look when I say im going back out.

 

[beaglebriar]

Theres a thought that didnt cross my mind.

Going out to the woods turned into hooking a sled to the wheeler and dragging the kids around for a bit.

They are back in to warm up, so I will see if my wife gives me the look when I say im going back out.

I know that look.

 

[redline4]

Well, its not a dry clutch bearing.
I ran a tank through it. It did it twice.

Both times were after limbing off some small pines, I hit the brake, set it down to move the brush and thats when it did it.

Seems to be coming from that stupid muffler.
Maybe carbon buildup inside it causing it?
I will pull the muff sometime and see.
Maybe it was always there and I just didnt notice. Its the newest saw I own, and the only one with one of those ghey mufflers.

 

[beaglebriar]

I put a chain back on one for my friends wife at the tree farm this morning. That's the closest I've been to a ms180. Not a saw that you see much of around here. 290/390 mufflers have spacers where each bolt goes through could be something like that rattling.

 

[Wood Doctor]

Try it with the bar and chain removed. See if it chirps at idle then. Also, is the chain moving or trying to move at idle?

 

[fearofpavement]

I've run this model of saw a lot and can't say I've noticed the sound you're describing. These are very prone to the muffler spark screen plugging up but not sure that would make a noise. Usually results in poor running/power loss.

 

[redline4]

Try it with the bar and chain removed. See if it chirps at idle then. Also, is the chain moving or trying to move at idle?

Nope, it doesnt move.

I've run this model of saw a lot and can't say I've noticed the sound you're describing. These are very prone to the muffler spark screen plugging up but not sure that would make a noise. Usually results in poor running/power loss.

May be my imagination also, but it seemed to have a bog/hesitation yesterday that I didnt notice before either.


Im going to try to get that muffler off today and see what it looks like as far as carbon goes.

 

[redline4]

I let it run without b/c. Thought I heard the noise.
I pulled the muffler.
A small stone came tumbling out from behind, and the screen was 1/4 blocked.
Not sure where the rock came from, I dont use it for trenching...
But, screen removed and rock gone. 1 tank in and no noise.

 

[Chainsaw Jim]

Bad muffler bearing.

 

[redlight066]

Hahahaha!!!!! Beat me to it

 

[redline4]

Bad muffler bearing.

Thats pretty much what I chalked this up as.

 

[Wilhelm]

Take off the AF cover and AF, crank the saw on, hold the trigger WOT, empty a whole can of bug spray into the carb - that should take care of the cricket making the chirping sound.

OK, don't do that - it is inhumane towards the cricket.

 

[redline4]

Can I just add it to my mix?
40:1 Raid to fuel..

 

[Wilhelm]

Can I just add it to my mix?
40:1 Raid to fuel..

Never thought of that!
Yeah, that should work too.

 

[fearofpavement]

Sounds like the problem was discovered and resolved. Yea!