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Isaac

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I gave the cylinder off my 064 hybrid to a logger that was in a pinch so it gave me a chance to see how the unicorn cylinder I have ran. The muffler has a small mod but screens are in it and a ignition advance but the piston and cylinder are completely stock.
With a oem gasket it's 99.5 120 77 020 squish. Lot of ported 066 could be beat with it.


That thing is singing. Looked like it had you smiling after that first cut. [emoji51]


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Chainsaw Jim

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How much advance has it got?
I used a key filed .015 thicker than the one I was using. I don't have a timing light to know exactly. It's running that 046 poly flywheel and coil, which the coil isn't in the exact same location as the stock 064 coil if I remember correctly.
FWIW.....my notes have it at .028 filed off the key originally and I changed to .014 filed off.
 
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CR500

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To rainy and dark to cut anything so I just revved some piss out. Cr500's 7900 first start after porting. Muffler is still stock

Sounds very good!!!!!

Nothing like a rainy night and some piss revs lol

You try the K2 I sent yet?

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RI Chevy

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The 7900 sounded real zippy! Is there a big weight difference?
 
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