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View Full Version : need help bad tuning grizzly fi


grizzly 1
09-16-2008, 11:19 PM
hello fellow people of earth i just bought a new 08 700 yamaha grizzly .. it's awsome .... but i put on a pipe from a yzf 250 to replace my stock one it' sounds awsome and seems to run good at least in my drive i was told that i need to change my "Cu" from 0 to about 8 or 10 so that it doesn't run to lean if this is true does anyone out there know how to adjust it?