084 and 066 top end

[sawfun]

I'd say water in the fuel as well. If you used ethanol gas I'd bet that's the culprit. That and or old or bad oil.

 

[00juice]

I'd say water in the fuel as well. If you used ethanol gas I'd bet that's the culprit. That and or old or bad oil.

I've often checked my diesel in glass jar, guess it's time to start doing the same with gas.


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[ncfarmboy]

I have an ethanol checker I got from Baileys years ago. Takes 5 min or less to settle out.
Shep

 

[drf255]

Porting loooks like it wasn't done particularly well.

Do you know which way the ring pins were oriented, towards the intake of exhaust?

Looks like either detonation or debris in chamber.

Those shallow and long fingers look like they will ruin the plating and little more than that at all.

 

[00juice]

Porting loooks like it wasn't done particularly well.

Do you know which way the ring pins were oriented, towards the intake of exhaust?

Looks like either detonation or debris in chamber.

Those shallow and long fingers look like they will ruin the plating and little more than that at all.

Don't know how the ring pins were oriented.

Consensus seems the port job was bad, which is a bummer. Spend lots of money, for poor quality work. Sorta sucks, but being as it's demise likely came from bad fuel, I guess it's a moot point.


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[hedge hog]

Thanks for the info. I'm gonna start checking fuel like you suggested. What are the stihl vials called?


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[hedge hog]

If a gas station says there non alcohol I put a few gallons in my truck to clear the hose then put 6 oz in Gatorade bottle and go home and test it.
A few stations lie about having no alcohol
It doesn't have to be mix with 2 stroke oil to test

The water line that you fill to sets the baseline then fill to the line with gas and shake.
The water will combine with the alcohol and raise the base above where you filled too.
There are % marks to figure the exact number


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[00juice]

If a gas station says there non alcohol I put a few gallons in my truck to clear the hose then put 6 oz in Gatorade bottle and go home and test it.
A few stations lie about having no alcohol
It doesn't have to be mix with 2 stroke oil to test

The water line that you fill to sets the baseline then fill to the line with gas and shake.
The water will combine with the alcohol and raise the base above where you filled too.
There are % marks to figure the exact number


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Thanks for sharing


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[hedge hog]

Thanks for sharing


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No problem
These might better pictures

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[hedge hog]

I use a old turkey injector
For a little more control of filling


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