Front fork oil change notes
by Roy Shilling
by Roy Shilling
To change the fork oil on lightweight forks the drain plug is also the 'boomerang' mudguard stay bolt/stud into the bottom side of the slider. Take the nut off the outside and remove the stay, then remove the stud to drain the oil out. Discard the fibre washer - replace with a new one. Undo the top nut, (on T20 Nacelle equipped bikes, there is a filler hole in the stanchion behind the headlight) one side at a time if you don't want to take the wheel out and gently work the suspension up and down to push out the oil. I say gently because if you don't, any oil in there will be forced out like a jet...... |
Once all the oil is expelled, put the drain stud back in temporarily and put some brake cleaning solvent into the stanchion from the top. Re fit the top nut and work the suspension up and down a few times to 'swill' the fork leg and dislodge and crud, and there will be some!
Remove the drain stud and allow to drain taking the top nut off and working up and down gently to expel all the contents.
Once complete and the solvent has evaporated, refit the drain stud and a new fibre washer - Do not over tighten.
Put in 75cc (1/8 pint) of SAE30 oil and refit the top nut, boomerang stay and that's the first side done. Repeat for second leg.
Remove the drain stud and allow to drain taking the top nut off and working up and down gently to expel all the contents.
Once complete and the solvent has evaporated, refit the drain stud and a new fibre washer - Do not over tighten.
Put in 75cc (1/8 pint) of SAE30 oil and refit the top nut, boomerang stay and that's the first side done. Repeat for second leg.