Stihl 066

[woodbodger]

I have learnt a lesson: the local Stihl shop charged me £25 to tell me that the cylinder and piston were shot to bits. Parts would come to £300. With my tail between my legs I slunk out, not convinced, however a bit of ebay time a little bit more money ( £62) and I have rebuilt this saw and incredibly it started 3rd pull. The lesson: always take of the exhaust and have a look at the cylinder. Thanks for all the advice I thought that as long as there was compression all was ok on the cylinder front and the sparked looked weedy to me. I think I should stick to making Windsor chairs!

[Mesterh]

 

A good result in the end though:thumbup:

 

Was it badly scored then?

[woodbodger]

Yep badly scored but it had loads of compression,to my mind.

[Stihl Alive]

Sorry for the late reply, could well be the coil, I have an HS80 hedge cutter runs perfect from cold for about 8-10 mins then just cuts out.

Checked everything, once it cooled it ran fine again for same amount of time. Finally frustrated after 3 or 4 times, I pulled the plug and checked the spark straight away, sure enough NO SPARK:thumbdown:. Soon as it cooled down I checked again and the spark was there.

Never came across this before, usually thought a coil just went down, never intermittent, but on closer inspection HS80 coils have sealed resistors, diodes etc in them. Must be these breaking down.

Hope this helps.

PS, Does anyone have a cheap new HS80 coil sitting on a shelf they want to sell.