Well, I got the Asian 660 running today ... and it runs good, but I don't think it is as strong as my 066 and it was a LOT of headaches!
First, - I made a thin gasket for it, but it was too thin. Ended up searching my inventory. Some of the gaskets I have measure .022, but one from Cross measures .017, so I used that one and squish ended up at .022. Good to go!
Second, I put it all together and was anxious to run it, filled it with fuel ... and it started leaking all over the place. Determined the leak was where the fuel line goes through the tank. So I figured I'd get an OEM and not worry about it, but NO ONE has them ... I guess my saw models are getting ancient!
I found I had a supply of AM fuel lines ... but they also did not fit snug in the hole (I still can't figure out what the heck happened). But, determined to run the darn saw I cut the bottom off the first fuel line (where it connects to the filter) and threaded the new fuel line through it till it reached the flat stop, so where it goes through the tank is two layers thick (was a lot of work to do this), but it worked!
Third, then I throw the saw back together and fill it and try to start it ... 20 pulls and no kick. I'm starting to think the there is no spark, so I remove the filter and prime it, and she starts, idles, and purrs like a kitten. I hit the trigger, and NOTHING happens ... and I realize why it would not start, I forgot to reconnect the trigger linkage when I rushed to put it back together!
I'm so glad that it is now running, but what an ordeal!