elus1ve
Member
I have a S2 model and I'm planning to change the seals next year. Just can't afford them now. Planning to do some cleaning of the pistons only for this year.
Re the brakes, when I referred to using brake grease, it was on the pins/bolts (if S1) the calipers ride on that need cleaning and fresh grease..
What year bike?, S1 or S2?
If S1, it works the same as the rear, the caliper floats and SHOULD center itself for even wear.. Similar maintainance..
If S2, the caliper is hard mounted (4 pistons), to the fork. The 4 pistons come out as the pads wear. Un-even wear for the S2 is usually due to the calipers needing a rebuild. The rubber seals inside harden up, stick and don't retract as they should with no hydralic pressure. Yamaha recommends seal replacement every TWO YEARS..
I've found between my old FJR and current FZ (same ft calipers) you can get 4-5 years before they need replacement.
You should be able to get approx ONE FREE SPIN (with the ft end lifted) spinning as hard as you can by hand. Before I rebuilt mine, I got maybe half a turn. Its been about two years since the rebuild, the ft wheel spins at about 4-4.5 revolutions...