Fork Oil Change Preview

A preview of the video on how to change motorcycle fork oil.

Category:

Autos & Vehicles

Tags:

• fork
• oil
• change

[ylism]

I was thinking about buying a Suzuki V-Strom 650,or a V-Strom1000, But there tall bikes, Would it be ok to let the forks slide up some to lower the front, and lower the back the same amounts. Or will this mess things up. There maybe other bikes I would try as well, That's if it works .Thank's for your help, yl

[SportbikeWrench]

@ylism You can lower the front up to 10mm but have to watch the clearance between tire and head/radiator. You can lower the back by softening spring preload to increase sag numbers. You could also swap out the fork and shock springs for ofter units or lastly purchase some Soupy's adjustable lowering links.

Dave Moss

Host

[suzigixxer1000]

HELP PLEASE! ive just bought second hand forks for my 1988 fz 600 as originals were blowing seals within a week and were bouncy and sink badly when the front brake was pulled i got the other pair and seals are fine no pitting where seals run there straight and the same length but id say there just as "bouncy" im unsure what to do could an oil change solve this? There supposed to use 10w but i assume the oil thats in them will be about 20yo and i was going to put fresh 20w in them can you please

[SportbikeWrench]

@suzigixxer1000 start with 20w to the same volume as the manual calls for, then try 30w if you still experience he bouncing. If 30w doesn't cur it I would look at the installed preload on the fork springs - there may be too much.

Dave Moss

Host

[suzigixxer1000]

HELP PLEASE! ive just bought second hand forks for my 1988 fz 600 as originals were blowing seals within a week and were bouncy and sink badly when the front brake was pulled i got the other pair and seals are fine no pitting where seals run there straight and the same length but id say there just as "bouncy" im unsure what to do could an oil change solve this? There supposed to use 10w but i assume the oil thats in them will be about 20yo and i was going to put fresh 20w in them can you please

[SportbikeWrench]

@suzigixxer1000 a couple of things to watch out for. Yes 20w will work if you use Maxima or Motul and set the oil height at 130mm (we have a download to help you with that). The second part is checking installed preload. - If they are the stock springs you can add 10mm of washers that are correctly sized (use the stock washer for sizing) to increase the installed preload and help with spring collapse and brake dive.

Dave Moss

Host

[geneome]

Thank you Sir for the quick reply. I weigh about 80 kilos ( I'm an Australian so go the Metric system ) that's about 175lbs and I am about 6.1 ft. The weight on my wrists is a bit much on longer rides probably need to strengthen my core more. But I will try the mod process you suggested then go from there. Thanks again for all the work on your videos and forum reply's, always appreciated Mr Moss.