Forhardcore racing these are MXA’s recommended 2013 Honda CRF450 fork settings (stock settings are in parentheses): Spring rate: 35 psi (33 psi) Oil height: 245 cc Compression: 11 clicks out Low-friction fork oil further reduces friction. – Hard titanium oxide coating on the outer surface of the inner fork tubes helps prevent wear, scratches and other damage to the tubes while reducing stiction and improving overall fork action. Mass Without Fuel 105.8 kg (233 lb) Fuel Capacity 6.2 litres 2023 Kawasaki KX450 MXandSXracer21 Posted November 17, 2011. I use 5 wt fork oil and prefer the Maxima Fork RACING oil (Blue label). Honda HP5 works well too. 10 wt fork oil will work, but it will feel stiffer. As far as fork oil goes, I personally always use 375 cc. If it still bottoms, you can add more oil. Youcan use conduit or pvc pipe. Then I used 30 weight fork oil. Yes, 30 weight! I can't remember now but I put in more than what the manual listed for the amount. Then I adjusted the shock preload to match the front. It made a world of difference but was still not enough dampening (pogo stick). On the 03 I used 20 weight oil and the stock Thebest way is to disassemble the forks to completely clean and purge the old oil out of the cartridge, but just dumping out the oil and replacing is better than nothing. I would measure how much comes out and replace with like amount. The Yamaha oil (Suspension oil type 01) is a 5wt oil. However fork oils with the same rating are vastly Rearshock [oil] is not replaceable. Front fork oil is every 12k. Pull the forks, turn them upside down and let them drain out by pumping the cap and rod to pump the internals dry or as much as possible to empty the chambers. The fork cap is bolted to the rod; the fork moves up and down and that rod is like the pump but is stationary rather Kawasaki2013 KX450F 164 TUNING j When the oil capacity is lowered the air spring be comes less progressive and the front fork action does not feel as hard in th Kawasaki2013 KX450F User manual online [165/180] 1123011. TUNING 163. j. TUNING. Suspension. Introduction. No area of machine adjustmen t is more critical. than proper Theseare the setups we ran on the 2017 Kawasaki KX450F: Inner spring rate: 138 psi (Vet), 152 psi (Intermediate), 167 psi (Pro) Outer spring rate: 16.5 psi. Balance spring rate: 160 psi (Vet TheKawasaki KX250F (2013) is a motorcycle model manufactured by Kawasaki. This off-road motorcycle is designed for competition use and offers a range of features to optimize performance. The KX250F is powered by a 249cc liquid-cooled, four-stroke single-cylinder engine. The engine incorporates a fuel injection system, enhancing fuel efficiency U5eyRAK.