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post #1 of 13 (permalink) Old 11-08-2004, 04:27 PM Thread Starter
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Fork Oil - stock forks

So I'm resealing my stock forks on my F4 as they were leaking. I'm primarily club racing with this bike so I figured some of you may have some recommendations for what fork oil to use. Stock weight is 10W and one guy at the shop recommended 5W but with little explanation. Thanks for any help.
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post #2 of 13 (permalink) Old 11-08-2004, 05:19 PM
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On my zx-7r, they call for 5W. I have experimented with weights, and settled on 10W for the track, 7.5W for the street (50/50 mix of 5 and 10W).

You may want to go to a heavier oil for the track, I can't see going to a lighter weight, unless that particular fork really runs better on lighter oil.

Best bet, stay with the stock weight, untill you reach the end of the fork adjustment.
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post #3 of 13 (permalink) Old 11-08-2004, 07:19 PM
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Hmmm, are the forks resprung, and or revalved for your weight..?

usually a lighter weight oil is used, for one thing it flows easier, i.e. goes through them little holes faster in the valves..

5 wt...should do it..

Old, Slow, but ...Smooth
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post #4 of 13 (permalink) Old 11-08-2004, 07:32 PM Thread Starter
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Quote:
Originally posted by Hammer 4
Hmmm, are the forks resprung, and or revalved for your weight..?

usually a lighter weight oil is used, for one thing it flows easier, i.e. goes through them little holes faster in the valves..

5 wt...should do it..
The forks are bone stock. Stock springs and stock valving. I've only raced two races now and haven't had a whole lot of time to play with the damper settings.
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post #5 of 13 (permalink) Old 11-08-2004, 07:33 PM
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The forks are bone stock. Stock springs and stock valving. I've only raced two races now and haven't had a whole lot of time to play with the damper settings.
Just out of curiosty..how much do you weigh, with your gear on..?

Old, Slow, but ...Smooth
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post #6 of 13 (permalink) Old 11-08-2004, 07:37 PM Thread Starter
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Quote:
Originally posted by Hammer 4
Just out of curiosty..how much do you weigh, with your gear on..?
I'm about 200 w/o gear. I've never weighed myself with gear on.
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post #7 of 13 (permalink) Old 11-08-2004, 08:31 PM
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At 200 lbs...thoes fork springs are way too soft, if in fact they are stock...The stock springs are meant for someone around 155 lbs...you need to at least get new springs..prolly .95's or even .1's

Anyway, with the stock springs, try the 10 wt..for the time being.

Old, Slow, but ...Smooth
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post #8 of 13 (permalink) Old 11-09-2004, 09:11 AM Thread Starter
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Quote:
Originally posted by Hammer 4
At 200 lbs...thoes fork springs are way too soft, if in fact they are stock...The stock springs are meant for someone around 155 lbs...you need to at least get new springs..prolly .95's or even .1's

Anyway, with the stock springs, try the 10 wt..for the time being.
Can you recommend a vendor for springs? Thanks for your help.
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post #9 of 13 (permalink) Old 11-09-2004, 12:12 PM
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Can you recommend a vendor for springs? Thanks for your help.
www.racetech.com

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post #10 of 13 (permalink) Old 11-18-2004, 09:10 AM Thread Starter
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Thanks Hammer 4!

My .95's should get here today and I will try them out this weekend at Willow. I'm going with 10W fork oil until I can afford to revalve the shocks.
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