Ford oil level for the 2kr

Hi, I replaced my fork seals last sping and I'm not sure if they have put enough oil because the front dives quite a lot (I didn't ride it much before so I can't tell if it's worst than before). So I'd like to know what's the oil level/quantity in the 2kr? I searched a bit and I could only find it for the 3ln. And would thicker oil help? If so, should I put 15w or 20w (10w is stock I think)? Thanks.

 

Ok thanks, and nobody knows the oil level and if I should put heavier oil?

 

OK broody - putting more oil in will leave less room for compression under load i.e. braking, which in effect is like putting in a stronger spring.. If you put too much oil in it will not leave enough room to for the fork compress and you end up getting a hydraulic lock where your forks can't compress any more as they they have run out of internal air space to compress. The pressure can burst the seals or do other damage when you hit a bump and there is no room to give.

Putting in a thicker oil will increase the damping rate, making the suspension dive slower but ultimately the same amount of dive. Also the ride will be harder and your wheel slow to respond to variations in the road surface.

Setting up your suspension is about getting the correct spring rates for your weight and the correct amount of damping. I put stronger springs in my suzuki and gold valve emulators to control the damping.

If it is diving too much then I would suggest topping up the forks by a small amount at a time and testing, or try stronger springs.

 

I was wondering if the level was lower than original, I don't plan to overfill them to get a stiffer ride.

And for springs, do we put some generic springs? If so, what kind of spring rate? I think that I will just bring it to a suspension shop, but if they have no specs (oil level or spring rate) it may be hard for them to get a starting point.

 

I got my springs over phone and email through <!-- m --><a class="postlink" href="http://www.suspensionsrus.com.au/">http://www.suspensionsrus.com.au/</a><!-- m --> Very helpfull.

As the bike weights are similar you will need a spring rate similar to what I put in my bike depending on your weight of course. Look up the Suzuki SV650 or the FZR400 on this site for spring rates <!-- m --><a class="postlink" href="http://racetech.com/ProductSearch/2/Yamaha/FZR400/1988-90">http://racetech.com/ProductSearch/2/Yam ... 00/1988-90</a><!-- m --> and click in the calc text Calculate Spring Rates and Display Available Springs

You just need the right diameter springs to fit. The spring length is usually sorter than stock and there is a spacer tube that you cut to length to add the extra distance.


This is the result of the FZR400 calc for a 90kg rider