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How much and what grade of oil do I need for the front forks..??

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  • Gregg Mahin
    Gregg Mahin May 09, 2019

    Hi, J I would really love to help you with your bike question but due to the magnitude of yesterday's solar flare the batteries in my crystal ball are dead and my mental telepathy headset circuitry was melted. I need the year, make, and model of your motorcycle please click on " Ask For More Information" directly below and provide this information in the box that will open and then click on the green "SEND" box in the bottom right-hand corner after it posts I will receive an "ALERT" icon that will allow me to respond to your information. Good luck and have a wonderful day.

  • Isuru Jayasinghe May 20, 2019

    can you please update me the bike model and year



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  • Motorcycles Master
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Check your manual

Posted on May 20, 2019


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Posted on Jan 02, 2017

  • 1512 Answers

SOURCE: Front fork oil capacity

Hi Lukepentcof.

its 350cc or 11.8 ounces in the Clyma book, but that's for a 1986 onwards model. you can vary the amount you use to suit your style of riding anyways. I doubt it would be that far from the mark.


Posted on Dec 08, 2008

  • 1512 Answers

SOURCE: front fork oil capacity

You can download the whole workshop service manual that has this info and heaps more from here. Hope this helps Thanks for using Fixya. 
regards robotek

Posted on Jan 10, 2009

  • 298 Answers

SOURCE: Fork oil capacity and density for Honda GB400

Hi there!

you need a 15W30 grade of .48 liters on each fork. Normally, i go .5 liters on each fork. Make sure your forks are clean before replacing its fork fluid.


Posted on Apr 01, 2009

  • 47 Answers

SOURCE: front fork oil capacity?

Piaggio have a technical help line with a free phone number, try their website

Posted on May 10, 2009

  • 677 Answers

SOURCE: front fork leaking oil from bottom of the seal.

Before you take it to the shop try this.Get some camera film,Cut the notched edge of it and trim the top to an angle of 45 deg..Slide this up into the fork seal and working it up and down,slide it all the way around the seal.When you get the feel of it,you can feel tiny bits of grit.This will clean the grit out 99% of the time.I always keep a piece of film in the toolbox.

Posted on Jul 16, 2009

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The front supension on my bike barley moves really stiff but yet bike is in a good condition

Hi paul..sounds to me you have to much fork oil in the forks mate.or you have the wrong grade oil in the fork legs...or if u have air valves on top of your fork stems.theyve been pumped up to much.but that would blow your seals..1st drain the fork oil out .then replace with the correct grade oil.and oil level in each fork leg.

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I have a 1800 honda goldwing.I replaced the fork seals on the front forks,they were leaking.Now they are not good at all.On rough roads when apling front brakes, the front wheel bounces all over the...

yes i can,,,,,first drain all the old fork oil out,,,and refill them with the right grade sae10? and let the oil settel into the forks for an houre or so then bounce the bike to forse out any air traped in the fork pistons,, this should work ok then,,,
never just top up fork oil,,,,,you will pop the seals out?
all ways drain old oil out then fill up with fresh oil every year

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1988 K100 RT\r\nwhat is fork oil weight? what is fork oil volume?

only use 5 grade fork oil in the forks not 10 grade or they will be very stiff you need 13.5fl ozs + or - 10% in each leg,,,,

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1 Answer

What's the correct oil-level and grade on front fork??

Std fork oil grade all around is 10W, depending on bike usage and preference, it can go down to 5W or up to 30W.
Oil level usually run from 175 -250 cc per fork, too much oil will cause fork to be stiff, not enough can damage fork seal, so go by trial and error but the amount should not run far from above numbers. Good luck!

Apr 25, 2010 | 1995 Yamaha FZR 1000

1 Answer

Fork oil capacity and density for Honda GB400

Hi there!

you need a 15W30 grade of .48 liters on each fork. Normally, i go .5 liters on each fork. Make sure your forks are clean before replacing its fork fluid.


Apr 01, 2009 | 1989 Honda GB 500 Clubmann TT

1 Answer

Adjusting suspension

hi there,,if u can see a air valve on top of the forks, then u can use a bicycle or foot pump to squeeze a bit more air to the fork,, or if there is an adjuster on the fork,ie, a plastic lookin cap with 1 2 3 4 and a arrow on it u can turn that to a comfortable position,, if there is nothing u can see, then u either have not enuff fork oil in each fork leg,,or if there is enuff,, u will need to change the grade of fork oil and replace wots in it,, so id say a more harder grade of oil,, usually there isnt enuff oil in the forks to make it dive into the front wheel,, try topping the oil up,,with about,4or 5 egg cup fulls of oil in each leg,,if nothing has made any difference,, put in another 4 or 5 ,,,any probs on how u put oil in2 the legs ,please do come back in ,and il tell u how 2,, im assuming u do no,, ok ,,cheers

Jan 29, 2009 | 1995 kawasaki KLE 500

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