2005 WR450 Fork Oil Weight?

[By bandit99, Posted October 18, 2005]

What weight fork oil does the 05 WR450 use? The manual and dealer says Yamaha S1. Does that mean 1 weight? The dealer wants $25 a bottle for this stuff and I was thinking of saving a few bucks by buying a different brand. How much do I put in each fork tube?

[By clark4131, Posted October 18, 2005]

They forks take 5 weight oil. Read your manual as it gives a rather easy to follow process with all the necessary fluid heights, etc...SC

[By hitech, Posted October 18, 2005]

Check out the AMSOIL 5wt Shock Therapy fork oil . Good stuff and good price...just over $9/qt.