KTM 990 SMT suspension issue
KTM 990 SMT suspension issue
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Discussion

Volant

Original Poster:

138 posts

159 months

Friday 20th April 2018
quotequote all
My SMT has been on softer settings to commute over the winter, now its time to adjust it for more spirited summer riding. So I went out for a fiddle. Something I've done plenty of times before, so the adjusters are used to being moved.

When I adjusted one of the compression damping screws at the bottom of the forks, it started to leak oil from the adjuster screw.

To be clear, this at the bottom of the fork leg, at the rear, near the brake caliper.

I wiped it off, and did the rest of the suspension, and came back to it 15 minutes later, seemed ok, no more leaking. I then turned the screw again to see what happened, and again, quite a bit of oil came out.

I haven't ridden the bike, so don't know what happens when the suspension is 'working'

What would be the advice? I presume its a seal? Would I be doing damage riding the bike? Do you think oil will continue to leak, or only when I move the adjustment screw?

Thanks,

Ben

orangefzr

179 posts

106 months

Friday 20th April 2018
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There will be an o ring or oil seal around the adjustment screw, sounds like a re build job to me unfortunately..... Try working the suspension while not riding it by applying the front brake ..... If it leaks you know the score, it will leak all over the brakes which will ruin the pads and contaminate the discs

scorcher

4,130 posts

265 months

Friday 20th April 2018
quotequote all
orangefzr said:
.... If it leaks you know the score, it will leak all over the brakes which will ruin the pads and contaminate the discs
and probably see you running into the rear end of a car or through the nearest hedge.........

Volant

Original Poster:

138 posts

159 months

Friday 20th April 2018
quotequote all
Arse.

Good job I haven’t jut spent over a grand on a remap and the mother of all services.

Oh, wait....

Thanks for the replies guys, I’ll get it booked in.