FORKS :D

[Anthony]

Well as many of you might know I got new brakes, the rubbing i experienced was the fixed calliper mounting touching the disc, no damage was done but to fix this the mechanic moved the bottom of the forks inwards to clear the disc and mounting. Then the pinch bolts hold the fork movement in place, now when the pinch bolts aren't done up the fork doesn't really resist the move inwards however for the past day (modification took place two days ago) after the bike has been parked for a few mins the forks take two seconds to settle to normal operation, by that i mean they sit higher then normal (where they sit leant over) then they "collapse" to normal level

now i think this is wrong, however the handling doesn't seem to be affected, and you have to leave the bike alone for a while for this to happen, otherwise it wont do it???? the forks have a slight bend near the top due to previous owner (found out after i serviced them) however its so small you cant see it and mechanics arent worried so my question is, does it sound like an internal metal rub/stick or the fluid moving or something, as this only happen after a while of sitting there????????

and if i got new forks would the problem still occur due to the small adjustment to let the brakes work???

[Guest]

when the bike is leant on the side stand, it has the weight off to one side, so once the bike is righted the full weight alters the fork height as they sink a little,

concerned at how he has moved the legs in, shouldn't they be fixed by spacers.. ?

[Anthony]

yea they sink but hold position for a second or two then sink, and it has the big spacer then nothing, however i believe thats normal as the axle has an area for the fork to clamp onto it, which is the area im on and if i put a spacer in there it wouldnt allow my calliper mounting to clear the disc and cause another problem.

[Guest]

yea they sink but hold position for a second or two then sink, and it has the big spacer then nothing, however i believe thats normal as the axle has an area for the fork to clamp onto it, which is the area im on and if i put a spacer in there it wouldnt allow my calliper mounting to clear the disc and cause another problem.

 

with the bandit you tighten the spindle, with the clamp loosely fitted then tighten the clamp, so i take it the spindle wasn't fully home... the sink will be the oil, when was it last changed.. ? could be its to thick (Old), whats the movement like.. do they bounce properly?

(if you are changing the fork oil the manual states 10W, however, bandit owners recommend at least 15w, otherwise its too spongy, i'm running 20w, and the GSX750w is a bandit derivative...)

[Anthony]

yea, the spindle wasnt home, it obv didnt matter with the old discs cos they were thinner, however the new ones were thicker and caused an issue so the forks were made to sit further in, they were rebuilt early in the year with the recommended 10w oil i didnt think it was a rub due to it not happening all the time, they do bounce, and as far as i can tell they are fine when riding

[Anthony]

so what are your idea WF?

[Guest]

if you've done the oil then its probably just oil going through the oil damper, will compare with mine..

mine just sink when i sit down.. dunno, someone may have an answer, but not me.. if they operate properly, and as you say have fresh oil, and passed the MOT, I wouldn't worry...

[Anthony]

FIXED

with imagination, brain power, washers and a 12mm socket and ratchet