Mate there is NOTHING that can be done to improve the Blitz forks... They are ridiculously basic in their damping, and yet have a rather complicated fork cap/automatic spring preload set up...
The Red Nuts on top of the fork leg, are a bit odd.. they have little grub screws in them to stop them from turning, and loosening the grub screw, and turning them effects spring preload... which is actually tensioned automatically also, as the main fork cap is screwed into the fork leg...
I took mine to a VERY VERY good suspension tuner, and he stated there is nothing that can be done to improve them... what you get, is what you are stuck with sadly...
I tried all sorts of things with mine in regards to the adjustment nuts, and found no difference after playing with any of them...
The fork action is also stiffened by the fact that the inside of the fork leg, where the inner fork leg runs through the upper stanchion, does not have an "oil bath", so the sliders get no lubricant at all.. which greatly increases stiction, thus making the forks seems very stiff, and the fork guards themselves, are too tight around the fork leg... they actually "grip" the stanchions as the forks go up and down, also making for a very harsh fork action... I discovered real early that 98-03 fork legs bolt straight on, and while they made a pretty big difference to the levels of stiction with the stock forks, the stock forks, are, basically, quite shit...
Your best bet is to turf em, and replace them with YZF or WRF items.... They can be sourced pretty cheaply considering, and when used in conjunction with Yamaha top triple clamps (98-00 models confirmed, unsure about later models) they are a direct bolt on swap... even the Blitz brake caliper bolts straight onto the YZF fork leg, and i'm yet to try it, but i reckon YZF front wheel bearings, will fit into Blitz hubs, so you can use the YZF axles as well, if you cant find a YFZ wheel....
Slowly but surely, we're finding solutions to the suspension problems with the Blitz, and they are relatively cheap, and massively effective...
The Red Nuts on top of the fork leg, are a bit odd.. they have little grub screws in them to stop them from turning, and loosening the grub screw, and turning them effects spring preload... which is actually tensioned automatically also, as the main fork cap is screwed into the fork leg...
I took mine to a VERY VERY good suspension tuner, and he stated there is nothing that can be done to improve them... what you get, is what you are stuck with sadly...
I tried all sorts of things with mine in regards to the adjustment nuts, and found no difference after playing with any of them...
The fork action is also stiffened by the fact that the inside of the fork leg, where the inner fork leg runs through the upper stanchion, does not have an "oil bath", so the sliders get no lubricant at all.. which greatly increases stiction, thus making the forks seems very stiff, and the fork guards themselves, are too tight around the fork leg... they actually "grip" the stanchions as the forks go up and down, also making for a very harsh fork action... I discovered real early that 98-03 fork legs bolt straight on, and while they made a pretty big difference to the levels of stiction with the stock forks, the stock forks, are, basically, quite shit...
Your best bet is to turf em, and replace them with YZF or WRF items.... They can be sourced pretty cheaply considering, and when used in conjunction with Yamaha top triple clamps (98-00 models confirmed, unsure about later models) they are a direct bolt on swap... even the Blitz brake caliper bolts straight onto the YZF fork leg, and i'm yet to try it, but i reckon YZF front wheel bearings, will fit into Blitz hubs, so you can use the YZF axles as well, if you cant find a YFZ wheel....
Slowly but surely, we're finding solutions to the suspension problems with the Blitz, and they are relatively cheap, and massively effective...
