Help!!!!!!!!

[dukebots]

I ride a KTM superduke 990 and everytime i give it throttle she develops a bad front end shake. Should I adjust my suspension? Do all Dukes do this? Any ideas or comments welcome.
Please I need HELP.

[Crissis]

have you made any mods/settins to your bike?

[dukebots]

Only the pipes and air filter other then those everything is still stock.

[dutch rc]

do you need tires, maybe a tire is out of balance

[dukebots]

The tyres are new and the balancing has been done and then re-checked. The tyres have also been double checked for correct seating as well as the rims have been checked for any warping or damage.

[bajadog]

Thanks to Inshala for this information!

"How much do you weigh? What spring rate did you swap to and where dod you obtain the spring from?


I weigh 96 KG, the part # for the heavier spring is (59) 180-185 d14 titanlook 9101.0276 spring as recommended by WP. These are the comments from WP rep.

"The SD is very sensitive to the correct sag of the bike.
The standard spring is meant for aproxx. a 75 to 85 kg person.
Rear sag should be 25mm, front sag should be 35 to 40 mm.

If your bike is wobbly, you should first set the sag right.
If the problem still exists, reduce the pre-load at the front.
If the problem then still exists, you can drop the frontforks through the triple clamps, with 2mm at a time, maximum of 8mm."

[Morpheous]

Did you buy the bike used? I would thoroughly inspect your frame for breaks/cracks, esp the trellis near the head tube. The SDs are wheelie monsters and depending on how hard the front end was put down time after time it could have developed a break in one of the tubes. Just another idea. Or check your steering head bearings, one of them may be cracked or broken. Obviously check the tightness of your triple clamps, the steering bearings, etc..Does it have a steering damper, could it be frozen or malfunctioning? Swingarm loose, or again, broken bearing in the pivot, Check the rear wheel bearing, the rear sprocket tightness.