Author Topic: Black Piston  (Read 2171 times)

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Offline dpjones

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Re: Black Piston
« on: September 19, 2017, 09:10:24 pm »
Your rite, it is the super techniplate, and I didn't run the saw too much after I started using the Motul cause I got my 660 and the 029 was running awfull.  I thought I may have been a little lean on the tune, the spark plug tip was  a lite color, sure looks rich on the piston though and the black is sticky/gummy also. My 038s done the same thing only not as bad, rings didn't stick. I thought the rings might be leaking the exaust by them? When I rebuild it I'll go back with Caber.

You seemed to have spotted the techniplate oil right off so maybe it's not good in saws.
I just thought it might lube better milling.
 I've went through allmost a quart of the Motul 710 in my 660 at 50:1 I'll pull the cylinder and check it. If it's like this I guess I'll just run stihl oil. Any advise is appreciated, milling seems all together different on the saws than firewooding
Thanks
DJ

 

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