Front fork air pressure

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03 Jun 2013 21:15 #590723 by drumbrakes
Front fork air pressure was created by drumbrakes
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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04 Jun 2013 11:51 #590813 by trianglelaguna
Replied by trianglelaguna on topic Front fork air pressure
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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04 Jun 2013 12:36 #590816 by drumbrakes
Replied by drumbrakes on topic Front fork air pressure
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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05 Jun 2013 17:46 #590966 by upncummr
Replied by upncummr on topic Front fork air pressure
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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05 Jun 2013 18:27 - 05 Jun 2013 18:29 #590971 by martin_csr
Replied by martin_csr on topic Front fork air pressure
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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