Yamaha YZ295 BIG BORE KIT $850 Model:YZ295 The cylinder heads are available

The cylinder heads are available in different compression ratios and the option of EZ starting with a decompressor button

Please check those product pages for options and prices

These cylinder kits fit Honda CR250 mx bikes made in 2003 and 2004

Exhaust bridge widened

and copper washers

Yamaha YZ295 BIG BORE KIT $850 Model:YZ295 The cylinder heads are availableOriginally designed by Eric Gorr and commissioned by Magnum distributing under the brand name MAGNUM MX COMPONENTS. I've converted thousands of YZ250s to big bores since I first invented this kit in 2008. These top end components are the latest generation of design and investment cast for the highest quality. These parts will interchange with all of the top ends processed by my company and Millennium Technologies as well as aftermarket kits like the