I did some searching but did not find the answers I was looking for. I am going to be riding my new 05 450 in the woods only and I wanted to get a GYTR off road flywheel. I checked the Yamaha web site and they list the 6 oz fitting the 06-07 and the 9 oz fitting the 03-05. My question is does the 9oz also fit the 05? Also should I go with a 9oz or 6oz for woods in eastern PA. I know that the power was a little bit smoother on the 05 compared to previous years. I also might get a rekluse if I still have stalling issues. How much weight does the rekluse add? Should I have a 6oz or 9oz if I also install the rekluse. Sorry for all the question but I am new at this off road thing.