Bicycle Mechanics - Fitting Deore V-Brakes

Im having a few problems fitting my new Deore V-Brakes to my Suntour fork. The instructions say that I should fit the stopper pin into the centre spring hole on the fork, but when I do this there is hardly any force in the spring.

I have tried putting the stopper pin in the top spring hole on the fork, but then there is way too much force in the spring, so much infact, that the brake cable slips no matter how tight I connect it.

Has anyone got any advice? Am I doing somthing wrong?

Thanks

A little trick I have leraned is by adjusting the centering screws out, that it takes some of the spring tension off, this also works vice versa once the brake is installed. If there is not enough on the center hole of the stud you can also try to flex the spring on the caliper out and away from the brake to see if that works. If you question your installation check here.
http://www.parktool.com/repair_help/FAQindex.shtml#brakes

Is it new brakes on a new fork?

CLean everything, especially the springs and grease the pivots liberally. Also make sure that nothing leans on one of the arms or cables (esp. a pannier), or that the cable housing is too tight or too loose and pulls the brake on one side.

just fix the tension on the vbrakes themselves.

Thanks for the help. I've tried putting the pin in the top spring hole, and then setting the tension really low, but this is still has too much force.

I've seemed to get it working by using the middle hole, and then setting the tension to its highest, this works, although its not ideal.

you can also adjust by bending the tension spring inward or outward (be careful to not snap the spring), assuming you have the tension springs on the back of your vbrakes.