I recently installed a new chain and sprockets on my 01 426. I re-used the old front sprocket lock washer and it was OK. I now decided that I want to use a 13 tooth front sprocket instead. The lock washer that I already re-used is probably not going to work well again, so I went to two different Yamaha dealerships and neither one has the lock washer in stock. This surprises me because as far as I can tell, it's a common part that's used on several models covering many years. It's just a thought, but would any other bikes happen to use the same lock washer? There are Honda, Kawasaki, and Suzuki dealerships not too far away (also Home Depot and Lowe's ). I'd like to do this tomorrow and not have to wait several days for a $2 part.