Cylinder Works aftermarket YZ250 head

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11/23/2017 2:27 PM

Just noticed Cylinder Works offers a replacement head for the YZ250 that appears cast and very similar to the stock head.

http://www.cylinder-works.com/ProductInfo.aspx?item_id=7589

Unfortunately, info is pretty skimpy as far as compression, squish, etc. Wondering if anyone has any info on this?

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Powerband in every gear !

11/23/2017 7:16 PM

“Replacement head”. My guess is it’s identical to the oem head. If yours is damaged this is the one to buy if you’d want a brand new head

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2011 Yamaha YZ 250 -MX
1996 Yamaha Banshee 350 -Trails
1982 Chevy S10
2005 Pontiac GTO -451rwhp

11/23/2017 9:22 PM

eric513anderson wrote:

“Replacement head”. My guess is it’s identical to the oem head. If yours is damaged this is the one to buy if you’d want a brand new head

Yeah, that's what I basically figured. The issue is, it fits 99-2017 and the compression changed a few times in there. So is it the same as a stock 2005 or stock 2016?? Also, the stock YZ250 squish is a little suspect so it would have made sense if they spec'd it with an improved squish shape.

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Powerband in every gear !