Author Topic: Ordered a new 7900 OEM Cylinder and Piston  (Read 1053 times)

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Offline farmboy

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Re: Ordered a new 7900 OEM Cylinder and Piston
« on: July 27, 2013, 02:30:49 pm »
My last 2 7900 P&C kits had slab sided pistons.  I wanted windows so I bought 2 AM pistons.  The new piston is a lot lighter and skirts are a couple mm wider.  No reports of anyone saying loss of power with them.  The ex port is completely diff. on the 7910 cyl.  has a tube that stick inside the ex port.  Look @ muffler.
http://www.partsnationwide.com/ARI-PartsSearch#/Dolmar/PS-7910_Chain_Saws_-_Gasoline/Hood%2c_Air_Filter%2c_Muffler/2S01440003/2S01440002C
Ex. can be ported same as 7900 cyl.
Shep

 

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