Hi Guys,
finally got the 1wg run up the road but the front forks are real soft. I guess a change of oil and maybe some spacers on the springs will do the trick, but i can't find which oil to put in or what air gap there should be?
anyone any idea or can point me to some good resources for this??
cheers
1WG Fork Oil
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fzrbob
- Settled in member
- Posts: 15
- Joined: Thu Jul 15, 2010 9:56 am
- Bike owned: Yamaha FZR 400 1WG
- Location: Lancaster
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oollit
- NWAA Supporter
- Posts: 148
- Joined: Tue Apr 29, 2008 8:43 pm
- Bike owned: FZR400RR 3TJ, RF900R
- Location: Shetland.
Re: 1WG Fork Oil
Depends on what model you have, here are some of the front suspension specs from a previous post.
I used 15w oil instead of 10w, made a big differance on my 3TJ.
The FZR400A and FZR400SCA were what the yank model were called but I can't remember which Jap models they were.
FZR400RR 3TJ
43mm Fork Tubes
Fork Spring Free Length - 346mm
Minimum - 341mm
Spring Rate - 6.5N/mm (0.65Kg/mm)
Fork Travel - 120mm
Oil Capacity - 509cm3 (17.9Imp Oz)
80mm From the top of inner tube, fully compressed without spring.
10w Oil
FZR400SP 3TJ
43mm Fork Tubes
Fork Spring Free Length - 359mm
Minimum - 354mm
Spring Rate - 6.5N/mm (0.65Kg/mm)
Fork Travel - 120mm
Oil Capacity - 433cm3 (15.2Imp Oz)
106mm From the top of inner tube, fully compressed without spring.
10w Oil
FZR400A
Fork Spring Free Length - 412mm
Minimum - 408mm
Spring Rate - 4.4N/mm (0.5Kg/mm)
Fork Travel - 130mm
Oil Capacity - 440cm3 (15.5Imp Oz)
92mm From the top of inner tube, fully compressed without spring.
10w Oil
FZR400SAC
Fork Spring Free Length - 412mm
Minimum - 408mm
Spring Rate - 6.6N/mm (0.7Kg/mm)
Fork Travel - 130mm
Oil Capacity - 440cm3 (15.5Imp Oz)
92mm From the top of inner tube, fully compressed without spring.
10w Oil
I used 15w oil instead of 10w, made a big differance on my 3TJ.
The FZR400A and FZR400SCA were what the yank model were called but I can't remember which Jap models they were.
FZR400RR 3TJ
43mm Fork Tubes
Fork Spring Free Length - 346mm
Minimum - 341mm
Spring Rate - 6.5N/mm (0.65Kg/mm)
Fork Travel - 120mm
Oil Capacity - 509cm3 (17.9Imp Oz)
80mm From the top of inner tube, fully compressed without spring.
10w Oil
FZR400SP 3TJ
43mm Fork Tubes
Fork Spring Free Length - 359mm
Minimum - 354mm
Spring Rate - 6.5N/mm (0.65Kg/mm)
Fork Travel - 120mm
Oil Capacity - 433cm3 (15.2Imp Oz)
106mm From the top of inner tube, fully compressed without spring.
10w Oil
FZR400A
Fork Spring Free Length - 412mm
Minimum - 408mm
Spring Rate - 4.4N/mm (0.5Kg/mm)
Fork Travel - 130mm
Oil Capacity - 440cm3 (15.5Imp Oz)
92mm From the top of inner tube, fully compressed without spring.
10w Oil
FZR400SAC
Fork Spring Free Length - 412mm
Minimum - 408mm
Spring Rate - 6.6N/mm (0.7Kg/mm)
Fork Travel - 130mm
Oil Capacity - 440cm3 (15.5Imp Oz)
92mm From the top of inner tube, fully compressed without spring.
10w Oil
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oollit
- NWAA Supporter
- Posts: 148
- Joined: Tue Apr 29, 2008 8:43 pm
- Bike owned: FZR400RR 3TJ, RF900R
- Location: Shetland.
Re: 1WG Fork Oil
It just dawned on me that you probably have a Genesis, which I think was the FZR400RU.
Did a quick search and came up with this...
http://www.fzrarchives.com/ipb/index.ph ... opic=48830
You will need to register to view the manual. I have forgotten my login details as I haven't used this site in ages so I couldn't access it.
Did a quick search and came up with this...
http://www.fzrarchives.com/ipb/index.ph ... opic=48830
You will need to register to view the manual. I have forgotten my login details as I haven't used this site in ages so I couldn't access it.
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dancon3105
- Settled in member
- Posts: 4
- Joined: Thu Jun 12, 2008 1:46 pm
- Bike owned: FZR400 1WG
Re: 1WG Fork Oil
Genesis /FZR400U/FZR400W (the non-EXUP bikes) 444ml /92mm Gap.
There are downloadable manuals (& parts lists) around for this to confirm.
Think the 'U' is Japanese & 'W' is US
There are downloadable manuals (& parts lists) around for this to confirm.
Think the 'U' is Japanese & 'W' is US