Thursday, 14 July 2011

new springs









forks taken apart, quite unnerving to start with as I've never done this before.After reading various ways of doing it and faffing for a day, found the easiest wayby trial and error..... once i realised that the forks were 954 forks not 929 as the breakers had sold me( well done to them another mistake from them, forgetting that the also sold me 1/2 port older fireblade front brake master cylinder so had rush out 40miles to another breakers in Godstone who luckily had the 3/4 port 929/954). So watch what one buys online or phone because you really need to go and look at these parts to make sure there right). The 954 forks are different to 929, they look the same exceplt the end caps and preload bits are different, the springs are longer on the 954 by about 25mm...the fluid levels are also different............by 17mm....



So first up cleaned the forks, rinsed them through with parafin then break/carb cleaner. Made a tool( aluminum 4mmplate with a 10mm slot) to slip under a nut(hidden behind the white plastic spacer) which holds the spring down while the compression black nut is wound off so the end cap pops off, then take the tool out which then the spring can come out.

Then bung fill the tube with oil.....which takes a long time, pull the damper rod up and down to expell air, let the oil settle, measure the level, add a bit more until its the required amount. Hyperpro oil 107mm from the stantion top..( 929 forks differs, manual sais 90mm, hyperpro 120mm). I made some spacers because I had the 929 springs not 954, then had to work out my oil level)











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