As many of you know there are some Clutch issues with the YZ450F. I need owners of the '03 WR450F to verify with their dealers what the "Permanent Remedy that has been incorporated into the beginning of the '03 WR450F production and will be interchangable between 03 WRF & YZF450" is. This is a quote off of the yamaha
service bulletin that I have received. The temporary fix is to replace 3 clutch parts & cut off 4mm from the clutch arm. I verified the part # for the YZ450F clutch arm is part# 5TA-16381-00-00. I can not verify WR450F part # as no dealer in this area has 03 WR microfiche.
I am wondering if they are indeed the same part # or that maybe the Clutch arm has been modified at the factory already & it carries a different part #, if this is even the permanent fix is another question. Please check with your dealers & post reply. Thanks