Bikes, Hints'n'Tips > Fazer 1000/FZ1 corner
Fazer 1000 Suspension woes and more
unfazed:
Having tried the 5w 7.5w and 10W on the standard forks for setup and Wilbers progressive springs.I weigh about 90kg in full gear and my findings were
Oem and 5w oil is far too light and was running out of adjustment on the rebound damping
The 7.5w was and is just about perfect, plus easier to set up
The 10w was making it too stiff, especially on compression and not easy to setup. Never felt in control of the front with the 10w and some roads felt like it was chattering
My Present fork setting with 7.5w oil and the Wilbers Progressive springs
150mm Air gap
Forks legs up 10mm through yokes.
Compression: seven clicks back from max.
Rebound: six clicks back from max.
Preload: one ring showing
Laden sag: 35mm. (just one up with full tank of fuel)
Trebus:
Cheers Unfazed.
Using this calculator I can mix my oil to suit. https://www.widman.biz/English/Calculators/Mixtures.html
Didn’t want to waste the new 10w so can hopefully have enough for 2 changes 😀.
unfazed:
Handy calculator. :thumbup
Tim270:
Hello again gents!
After opinions, wanting to service the exup, took off the cover and found bottom left bolt is pretty much gone, someone has rounded it out and rusted stuck. (clearly aint been serviced in a long time :rolleyes ) Had a go already with a torx bit and a impact driver but no luck. Ive no problem drilling bolts but this one is pretty awkward. Tempted to just to drop the headers and drop it to the machine shop to do so they can helicoil if needed. Anyone got any other tricks to try first?
Its flicked the 7k exup warning a few times intermittently, so im wondering if its not fully closing and contributing to my low rpm hunting. Noticed that exhaust lug on the right has corroded off too...
Ive already got the stainless replacements ready.
Cheers!
Trebus:
Final thoughts from me on the fork situation.
To recap, my gen 1 thou hasn’t done many miles. Approx 13k. I’m 12.5 stone ish without kit.
Replaced the upper and lower bushes, 9.0Nm linear K-Tech springs and mixed some 5w and 10w Motul oil to get to 7.5w. K-tech recommendation is 10w but after hearing from a few others that it was too harsh I went with lighter. Up until today had done perhaps 40 miles fine tuning. Today did a nice run from the midlands down to the south coast, 180 miles via Cirencester and Sailsbury. Back home tomorrow.
Initially (before today) I was not that impressed but got to say that it was one of the nicest rides I’ve had on the bike after the set up changes. The forks aren’t absolutely perfect but they are much, much better. One of the main issues I was having is the low speed reaction to bumps, feeling everything and compared to my ancient ZZR600 it was awful.
Arrived at:
9.0Nm linear springs + 7.5W Motul oil
Air gap: 145mm
Preload: 3 rings showing
Rebound: 7 clicks out
Compression: 10 clicks out
Perhaps some further optimising (I know the stock valving is crude) but I’ve now got to an acceptable feeling with the front end to go with the R6 shock.
Happy days!
I’ve had some good help from other members so hope this is useful information for somebody.
Maybe a revalve one day..... 😁
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