fzs1000's ones are too long and awkward though

Bump

The problem is that more preload will not make it exactly stiffer: the forks will have more travel when breaking and hitting bumps, but at the expense of having less travel when extending (when the wheel goes over a hole for example). As Anzacinexile said if springs were linear more preload would just change ride height. But as the springs are dual rate you will have less soft travel rate and more stiff travel the more you add preload. I do not know if I am explaining it well sorry.

Use 20 oil. There is little difference between 10 and 15, specially if they are from different brand they could be almost the same real viscosity.

I still think oem springs are decent, the problem is the lack of damping makes them seem too soft, and the dual rate is too soft and later too hard trying to mask that. My ace's springs are soft and the bike is 229kg and 86 myself, and they work perfectly. Maybe somebody changed them? I have to investigate it.

Use SAE20 fork oil and add a bit of preload, 1cm or so. Do not use gear oil, I have ridden a bike with that and it sucks. Fazers have almost no low speed compression damping. I have for sale a couple of very stiff springs but they will be too hard for your weight on the road, and 2002 preload adjusters and spacers for '98 bikes.

Do it, add a nitro or a turbo!

Consider a YZF1000, sportier and lighter than Blackbird, comfier than Ninja and GSXR.

Which city it was?

I'm from Spain and I've never been fined for filtering, and only once for speeding  . Filtering is a grey area that depends on how hard the city's council tries to get money, if it happens that somebody there hates or likes bikes and how dangerous the action seemed to the police. It is not a good idea to filter on a solid line anyway.

In cities like Madrid and Granada you have advanced motorcycle stoplines. I think that nobody is going to fine you if you filter to reach them if the cars are fully stopped and you do it slowly even if you do not leave the 1'5m.

Parking on the sidewalk is allowed in some cities and forbidden in others, so when you travel it seems you have to study each council's local rules. Radar where the speed sign changes are increasing. It is a theft. They mostly control speeding at the sorrounding of towns or at the end of descents. Never where the traffic is very light -no matter the accidents, according to the former chief's words-. The 50% discount is very embarrasing and for many law experts it is considered actually illegal.

Didn't your bike had an excessive long gearing? Told you it was better to have a 14t sprocket 

I would have been very interested, but I have taken an easier way and bought a bike with cartridge forks. It is remarkable how firm its compression damping is when braking hard, and how soft it is when hitting a bump.

Modifying the Fazer with higher viscosity oil (SAE 20) and linear springs (1 kg/mm) do help for spirited riding but reduce comfort and still feels springy. Still the Ace feels much firmer when braking even when it has just SAE 5 oil and 0.80 kg/mm springs and it is a heavier bike (fazer standard dual rate springs are 0.75/1.4!)

If those emulators do really work like cartridges, they are a must. My modding parts are for sale by the way.

I have just updated prices and shipping costs. Make your offers as you like too.

After removing the items it took a ride as standard again except for firmer SAE20 fork oil. Much worse, springy and low like a rocking chair. After riding for a while a cartridge fork bike I realize Fazers do not only need my mods but Kebab19's compression damping mods indeed. Jack up kits are a must being so cheap.

Awful exhaust note now. Ace's standard can and Fazer's MIVV can with its baffle in it are quiet too but their sound is much nicer.

Not impressed  :

Nice reminder, I had just forgotten it and I've been blaming my tyres since the last storm