I killed my Tree Monkey 066 in 6 cuts

[RI Chevy]

Yes I backed out the LA screw about 1/8 turn. I was assuming this was idle as the 2 screws above are high and low carb screws right?

The LA screw shouldn't have really affected much by turning it 1/8 turn. The LA screw is usually just to help in starting and to stop the chain from turning at idle speed. The "L" screw is for the idle.

http://www.madsens1.com/saw_carb_tune.htm

I would contact Tree Monkey and see what he says.
@tree monkey

 

[huskytime]

So this is the pic ya'll are looking for with the scored piston.

My only experience with ported saws is my 550xp. One of the reasons I went that direction was the auto tune... no room for user error.

In my limited saw tuning experience the low is easier to tune. The throttle response was good. On the high, it had that 4 stroking burble at full throttle out of the cut. But obviously it was running lean.

 

[huskytime]

What's the right bar oil?

 

[Brewz]

I was just joking mate, bar oil is bar oil.
I use husky bar oil in all my saws too

 

[Brewz]

That puppy is toast.
Fingers crossed there is no damage to the cylinder but there will be melted piston stuck to it.

 

[trooney]

Wow!! I couldn't sleep so tuned in to find this. I don't know what to say. Wolverine is correct. Thats the last time it was run. Before that I put it in an oak log for about 4 cuts. Scott told me it likes about 13.3k and thats what I relayed to you. I third that, contact Scott. With that little run time on it something is wrong. Let me know what he says please!

 

[jake wells]

pull the top and get a look at the bearings i got a sneaking suspension something got wadded into the cylinder but it is to early to tell.

 

[Brewz]

I say leave it as is and let someone who knows what to look for check it out.

If you go pulling it apart your just messing with the chrome scene so to speak

 

[Chainsaw Jim]

I'm used to seeing not so fresh fuel mix or foreign debris cause this type of scoring. Usually a full lean meltdown from improper tuning will have far more surface area scored up than that.

I would hope that if one of my saws ever had this problem that the person would contact me before ever advertising it.

 

[Brewz]

Yeah the damage looks very localised like something hurt it causing the aluminum to pick up.

That's why i thought it would be best to leave it for experienced eyes to strip and check out

 

[Simondo]

As has been suggested ....I also think best practice would be to contact Tree Monkey and.. NOT !!!.. to strip the saw other than the muffler .
It is helpful to be able to see the saw in the state its in for the builder.

 

[Deets066]

This is more what a lean seize looks like.

 

[Deets066]

@tree monkey

 

[drf256]

Call Scott and send him the saw.

No matter how good a builder you are (and Scott is a legend) shít happens sometimes.

Let him diagnose it and see what it will take to get it going again.

Sure looks like foreign debris rubbing the piston to me.

 

[Al Smith]

It appears this saw has ingested something it can't digest.

 

[Brush Ape]

i got a sneaking suspension

Haha me too. But them new shocks set me back a few bills.

 

[Simondo]

It appears this saw has ingested something it can't digest.

Is it me ...that ring end on the left look like its there still or not ??

 

[Brewz]

Ahhhhhhhhhh

The 288 piston has a single ring with the ring pin in the center on the intake side.

I am wondering if the piston was in the wrong way round??????

 

[Brewz]

@huskytime
Pull the sparkplug and shine a torch in the top, see if you can see which way the arrow on top of the piston is pointing.

 

[Magic_Man]

It appears to me the ring on the left is gone. Also last I had heard Tree Monkey didn't have any internet service so it may be best to call him.