whc
02-28-2010, 05:03 PM
I bought an 07 yfz last year did not get to ride much due to an injury, so I am preping for spring figured Id better check the valves, the intakes are all .050 , but the exhaust not the same the left side exhaust is .25 but the left is .08 I know I have make ajustments, but I am real curious why the exhaust are so different. also what is the correct clearences for the 2007 yfz 450 se valves. what are the best shims to buy, shoud I Buy a kit or just the shims I think i will need????? any help will be appreciated. thanks, mild bill