Question about Stihl Models 064, 066, Ms640, Ms660

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Will a 56mm cylinder kit fit a 064

I have a stihl 064 chainsaw and want to put a big bore kit on it and was wondering if a 56mm kit would if or what machine work would need to be done

Posted by Kim Holbrook on


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It seems that YES a 56mm aftermarket cylinder is available for the Stihl 064. Looking at the kit you need to just replace Cylinder, Piston and rings, bearing bush and clips. Worth also replacing the base gasket too.

Posted on May 01, 2016


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Is my stihl chainsaw an 066 or 064

The O66 and O64 are basically the same saw just with a different bar option. All of the parts are interchangeable. If you need parts the serial number is what you will refer to. Also taking your saw with you to the parts store is always recommended.

I’m happy to assist further over the phone at

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Strip and clean the saw wash oil tank with some petrol LET it dry if you have run the saw with no oil or no oil pumping the pump can overheat that can be the end of it a work shop strip refit and next time watch the oil if it stops so do you clean saw often hope this helps

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1 Answer

Sthil 066 chainsaw

You are absolutely right, an 066 is a STIHL model chainsaw. Good job!

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