hey guys, my mechanic said that my front suspension has a big course when breaking, the bike lows a lot. he said maybe it has to change the oil of the suspension. what do you think? cheers

Well, maybe it has never been changed and optimally it should be changed every 2 years, so... Makes a difference.

SVS my friend, thanks for you quick answer...my bike has 6years so...6months I have it, i have to change it very quickly indeed... regards

2 years on the fork oil? Oh crap... I change mine like every 6 months... lol

If the front is diving a lot, I would have the sag and spring rates checked for your wieght. I bet the springs are too soft to hold the bike and your wiehgt up anymore.

John

rule of thumb is to change fork oil every 7500 miles http://www.gixxer.com/forums/images/graemlins/smile.gif

rule of thumb is to change fork oil every 7500 miles http://www.gixxer.com/forums/images/graemlins/smile.gif



Yeah, or evey two yeas, what ever comes first - more often doesn't hurt, obviously...

When my sister got her Kat, we changed the fork oil and I'm pretty damn sure that was the original, 10 year old oil... http://www.gixxer.com/forums/images/graemlins/shocked.gif All black and grainy and smelled like crap http://www.gixxer.com/forums/images/graemlins/plthumbsdown.gif Made a huge change to get new oil in http://www.gixxer.com/forums/images/graemlins/thumb.gif

HOLY CRAP I didn't know that needed to be changed that often! Mine has never been changed... When changing the fork oil do you have to change anything else, like seals or something? Also what can old fork oil do, like if I change it what should I notice a differnce in?

You shouldnt need to change anything unless you see a problem. IE oil leaking from the seals.

If you have a lot of miles on the bike, it might be a good idea to have someone that know how to work on forks take them apart and inspect the slide bushings. I think mine on the USD fork lasted till about 40K miles and then I had to replace them.

Other bikes will vary.

John