Kawasaki KLX Fork Oil Service HowTo 

+Maxi77 I'd be going for 0.50kg/mm fork springs at your weight. With the stock valving I'd use the Belray 5W fork oil, but with Racetech Gold Valves I use Motorex 5W which has a higher viscosity (even though it is the same SAE rating as the Belray). The Racetech gold valve are the single best investment you can make for this bike... the stock valving is pathetic and very prone to compression spikes.

+Arctra Many thanks! could you please tell me who supplied the fork springs? Cheers

+Maxi77 I got mine from a company called Shock Treatment in Sydney (Australia) that are a Racetech supplier. Take a look at the Racetech page racetech.com/ProductSearch/1/Kawasaki/KLX250S/2012

+Arctra , Thanks, they rebuilt my rear shock, can't complain about the results but the customer service leaves something to be desired. Unfortunately they seem to be some what slack in getting the front springs for me. I will have to ring them again. Regards Max

Service manual talk's about 450ml on change. But don't take that for granted, just do the procedure of filling it up and getting rid of any air bubble (pumping and filling depend's on when you feel like its strong enough to the point it doesn't get anymore and you dont need to fill no more fork oil so it's leveled with the top spring guide) and also let the fork rest vertically about 5-6min (put somehing over the top so it doesn't get any non-wanted particle going in). At the end do the method of removing 101mm or 10,1cm of fork oil from the top with the outer tube compresed, you can do +/-2mm and then close it. For torque specs it is said by manual going 15nm (11ft-lb) for the piston rod nut (the small 17mm one) and for the big cap a.k.a front fork top plug 30nm (22ft-lb) that should be it.

Yes, I set mine at 100mm. I think between 100mm and 110mm is a common oil height in open cartridge forks like these.

I use Motorex 5W Racing Fork Oil (the new stuff that has their "3D Response Technology" as it is very slippery and results in less stiction). It is the best value for money at a high performance point that I have come across.

+Viesturs Liepa I'm not sure of the exact volume because with these forks but it's not really relevant anyway coz you need to fill them, bleed them, and then suck out the excess to set your oil height (as I do in the video)

How will i know that it was the right level for it? What is your indicator use inside the fork?