Front fork air pressure

  • drumbrakes
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Front fork air pressure

03 Jun 2013 21:15
#590723
Curious what pressure people are running in their 750s.
How much do you weigh also? :)

Thanks

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  • trianglelaguna
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Re: Front fork air pressure

04 Jun 2013 11:51
#590813
dbl check ,but i think like 4-7 lbs...1lbs max

very little really....
1976 KZ900
2003 ZX12R
2007 FZ1000
2004 ninja 250R for wife

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  • drumbrakes
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Re: Front fork air pressure

04 Jun 2013 12:36
#590816
Thanks. I finally found it in the manual.
8.5-13 is the range and shouldnt exceed 30 something without popping the seals.

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  • upncummr
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Re: Front fork air pressure

05 Jun 2013 17:46
#590966
I know we investigated this last fall when we were working on my KZ 750 LTD. I seem to remember the spec being 8 to 10 lbs. I don't remember 30 lbs even being mentioned.

If I remember correctly there's only one air inlet valve and the two forks are joined together to equalize the pressure. If I'm wrong I hope someone will correct me.

Gary

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  • martin_csr
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Re: Front fork air pressure

05 Jun 2013 18:27 - 05 Jun 2013 18:29
#590971
There's a Max pressure & an operating pressure. The Max is typically 35-36 psi & the manual says that seal damage could occur if exceeded. The standard operating pressure or usable range is ~8-14 psi. When adding air, do so with the front wheel off the garage floor by jacking or blocking the engine and when the forks are cold. Use a low pressure gauge (not a standard tire gauge).

Some 750s have an air tube assy that connects the forks. Other models don't have it. I'd guess the thing makes airing up the forks easier. My neighbor's bike did not come with the device, so he made a nifty manifold from copper tubing & fittings and he included a pressure gauge.... it's kinda neat.
Last edit: 05 Jun 2013 18:29 by martin_csr.

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