Wanted to get it running stock. Figuring I would have plenty of issues yo iron out before having a solid running saw.
Have a stock oem 660 here to compare against once I get some test wood.
I must have got extremely lucky with my kit....
Only issue I ran into was a little piston skirt interference with the crank counterweights. Few swipes with a file all was good.
Everything seemed to be nice quality, no major casting flaws jumped out. Everything fit nice. This is my second "stihl" saw assembly. But everything went together smooth.
Finished assembly, added fuel,oil,bar,chain and prepared for a battle. Figured I would have to fight with the carb,ignition,oiler something had to go wrong. Right??
Set choke, pull 3 times. She pops. (SAWEEET!!) 2 more pulls fires right up. Couple piss revs, set it down to idle 10 min to clean the bench grab the tach etc. Come back blip the throttle, check the tune. Right at 12,500. Didn't even touch the carb settings from the bag.
Now writing this out will probably jinx me, but I home the luck stays with this China saw.
Performance seemed ok with the 25" 3/8 I had. Want to get more time on it then try porting both jugs.
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