pop up forks

[Pop-Kat]

Not sure what the correct grade is, but a safe bet would be 10w
Make sure you've got the correct spec level for the bike.

If your it feels soft you could wind the preload all the way in, if thats still soft then make a spacer to fit on top of the spring to preload it some more, 10mm should do it then you can back the adjuster off till your happy with it..

[nokatanayet]

the suzuki book states:
fork oil; p/n 99000-99044-15g (which i believe is 15 weight)
capacity 259ml
air gap 213mm
service limit on spring ;477mm
hope this helps

[Pop-Kat]

good info Simon, that air gap seems alot though ?
Talking of air gap, thats the best way to do it, you may already know but to measure it you take the spring out and fully compress the fork (forks need to be off the bike) then measure the distance to the oil, i would mark a tape measure at 263mm, then when there's oil upto 50mm on the measure your at the right level.
15w should work fine and that maybe the original spec but who knows for sure ?. example, most modern suzuki's use an oil called L01 but it's not available anywhere and no info as to the weight, general consensus is that 5w is close enough.

[nokatanayet]

its only wat d book says
the es ef etc has 10w oil with 293ml with an air gap of 192mm.
you see i can read

[Pop-Kat]

I don't doubt the book , just saying the air gap seems big, but then most of the forks i've rebuilt over the last few years are modern cartridge type, the air gaps tend range from 90mm to 140mm on them..

[nokatanayet]

[quote="arnica2612"]I don't doubt the book , yes you do.
how dare you doubt mr suzuki

[stevepeanut]

thanks for your help everyone, I will pull the forks off over this next week and re-fill them with 15w oil and see how it works

[Pop-Kat]

I don't doubt the book , yes you do.
how dare you doubt mr suzuki

Ok ok, i did doubt mr suzuki and his book, But HE like ME has been known to get it wrong before

[nokatanayet]

we all get it wrong once in a while mal, lets see how steve gets on with the info i gave him and then he can tell us if mr suzuki is wrong

[stevepeanut]

got some oil, will let you all know how it goes later in the week,

so would people say, its better to set up with air gap rather than the fluid measurement?