When I replace the fork oil in my forks whick oil do I use? According to the manual it says to use "o1" yamaha fork oil. The shop were i buy parts doesn't carry yamaha oils. My question is, if i use Bel-ray of Silkolene they generally come in 3wt,5wt and 7wt. Which one is equivelent to Yamaha "01"? The reason why i'm touching my fork is to clean and change the oil. There are no problem or leaks. Is it possible to remove the base valve and damper rod without removing the inner from outer tube? The reason why i ask is, i don't want to remove my fork seals because of a lack of a driver.