125z parts Yamaha DT125 Connecting Rod Kit Posted on December 19, 2009 by eddy Yamaha DT125 Connecting Rod Kit Yamaha 125Z have connecting rod length 110mm, this one have 100mm length. You can use this conrod to your Y125Z if you want to use a higher deck height piston. Advertisements[wp_dfp_ad slot="mm_lb_03"]