stihl 066 need help

[HarleyT]

First, while we are at it, take off your muffler cover

 

[HarleyT]

OK, one can burn up a new piston just as easy as an old one.

 

[HarleyT]

First, since it died while cutting, remove the air filter cover and filter and blow things out and give a quick look at the lines for damage.

 

[HarleyT]

Most likely, you slurped up some bad gas/crud, but first things first.

 

[HarleyT]

I see that it is an early model 066, so inspect the fuel line, impulse line and intake boot closely for cracks/tears, especially if you have some sloppy AV mounts.

 

[B A Miller]

I see that it is an early model 066, so inspect the fuel line, impulse line and intake boot closely for cracks/tears, especially if you have some sloppy AV mounts.

Yea the Av mounts are about gone. I'm gonna go ahead replace the fuel line, impulse line, boot, all that stuff. Any guidance? Would it be best to take it in? Or could I do it?

 

[HarleyT]

Sounds like you could do it, if the av mounts are shot, it could be just a torn boot or line.

 

[B A Miller]

Sounds like you could do it, if the av mounts are shot, it could be just a torn boot or line.

View attachment 518031

Thanks. As long I don't have to split the case I should be able to handle it

 

[Cease232]

#16 can be tough to remove. I find it easier to remove the whole rear tank handle assembly.


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[angelo c]

#16 can be tough to remove. I find it easier to remove the whole rear tank handle assembly.


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Not a bad way to swap out the intake and impulse lines while the tank/ handle is off
Listen to Harley too, check piston for wear before you do anything....or everything

 

[Wood Doctor]

Not a bad way to swap out the intake and impulse lines while the tank/ handle is off
Listen to Harley too, check piston for wear before you do anything....or everything

Agreed. Without compression, it will not run. Maybe for awhile it will, but then it will die. I foresee a new top end to save it.