Chainsaw Repair

I'm about to buy this saw for $150, or hopefully a little less if I can lower the price. Anyone here have this saw? I'm going to need a lot of help putting this thing together. It's supposed to be apart. Compression is a bit over 140 according to the seller.

Just read there's an after market P&C for the 1200 I think. If the P&C is trashed, anyone know if I can install a bigger P&C or where I can get a replacement? Also, other than putting a higher pin sprocket or whatever they're called, anything else I can do to improve performance (i.e. squish, remove gaskets, etc)?

aftermarket piston http://chainsawrepair.createaforum.com/echo/echo-900-piston/msg13802/#msg13802

Thanks. Have to look at this on my laptop, my tiny phone is driving me crazy.

So a brand new piston is only $26!? Does that sound too cheap too you? Damn, I may be able to keep this saw running forever.

I'm running a $15 aftermarket 066 piston.  Looked fine wouldnt recommend the rings or circlips that come with the afm kits unless meteor rings = caber. 
But I am running them all that came with the $15 piston because it is mine and I know what to watch for. If it happens it happens but I wanted to test one and see.

I'll show what I passed on yesterday and day before. Now that it is sold. Very cheap too. Didnt want to drive almost 3hr round trip.
Wonder if someone here got it. Was told they bought it many years ago and no longer need. Echo 900EVL
Was to heavy for me PHO so I would have just flipped it.



YEAR INTRODUCED:
      1981
YEAR DISCONTINUED:
      
ENGINE DISPLACEMENT:
      91.6 cc (5.59 cu. in.)
NUMBER OF CYLINDERS:
      1
CYLINDER BORE:
      54 mm (2.126 in.)
PISTON STROKE:
      40 mm (1.575 in.)
CYLINDER TYPE:
      Aluminum with chrome plated bore
INTAKE METHOD:
      Piston ported
MANUFACTURER ADVERTISED H.P.:
      not advertised
WEIGHT:
      9.0 kg (19.8 lbs.) powerhead only