Hi, For checking fork oil level there is next in the manual: For the regular fork operation, both legs must be provided with the necessary oil quantity. Remove the forkrods form the fork to check the oil level inside the forkrods. Work as follows: - remove the power rod caps; - remove springs from the stems letting the oil drop into the latter; - bring forks to stroke end; - check that the level is at distance of 140 mm(5.5 in.) below the upper limit of rods. ---------------------------------- However, when I unscrew the top cap, I can not pull out the rods from the fork. Unscrewing, I can hear like a click every turn (when caps already totally uncrewed). It seems, something is pulling down the fork caps. Springs? I`ve done this on stand, with no pressure on the forks. Any idea? Thank you, A
You need to remove the forks completely (I suggest you change the oil in them anyway-the factory stuff is way to heavy/thick),unscrew the cap, slide the outer tube down then you will see a nut just under the cap. This will need to be unscrewed and you can then remove the spring/valve. Flush them out with metho or something and refill with 5wt, you will then be blessed with nice supple front suspension. There is a thread somewhere on here about the oil issues. BTW , I set my level at 120mm, works great, but if riding whoops etc, go for 100mm. You will need about 600ml of oil for each leg (so 2 bottles required )
ok, thanks. The situation is, that I have the forks already prepared by one company (previous owner). However, the guy and owner does not remind what has been done on the forks, which are a bit too hard (nice flushing, but I can not use all the travel). The guy advised as a fast solution to take out some of the oil. Are there any schematic pictures of the forks? I know, that Yamaha had in the past similar forks mounted on. tnx again and regards, a
They are exactly the same as 06/07 YZ forks so I am sure it will be easy to find a diagram. There is also one in the parts list: http://www.husqvarnamotorcycles.com.au/support.asp?id=4&t=Parts Catalogues&cid=3 Either way, you will need to remove the springs and compress the forks fully to check the oil level.
Those forks are single chamber, same as 2003 yz250. Here is a link to the manual - http://www.ymenvom.nl/new/manuals/M5UP-30.PDF
You can tell the difference between the signle chamber and dual chamber by the valve on top. On the single chamber, the valve sticks up and you can open with a wrench. The dual chamber doesn't and takes a special tool to open up
