Manuel calls for 10 wt but I used bell -ray 15 wt and made a huge difference in the feedback.Also dropped the fork tubes 10mm into the triple tree . That quickEd up the steering.
While measuring what came out and putting the same amount back in works. Setting the oil by distance from the top with the forks bottomed out and no springs in them is the best way to do it.
You can put a little more oil than factory in them and stiffen the last part of the travel up so you dont bottom out.
I'd take the springs out, bottom the forks and measure how far down the stock oil is. When filling them back up go 1 inch closer to the top, remember to pump them up and down a bunch of times to get the air out before setting the oil height.
On my dual sports with similar forks (klr650 and dr650) we added at least that much extra and it makes the forks work alot better but guys knew the oil height and I just went by it. IE the factory was 165mm from the top and we went to 130mm.
I want to put 15 wt oil in my forks and raise the oil height/amount at some point, the forks are quite a bit softer than the shocks and this will stiffen them up without spending a bunch of money.
How do you tell when fork oil change is due? The service manual's periodic maintenance table doesn't say anything about changing fork oil. My previous motorcycles it always did. Makes you think the oil is for life but certainly don't want to overcook it.
If you are wondering if the forks are due for a fork oil change I bet they are over due lol.
If you really pay attention while riding the bike the forks will get a bit softer as the oil breaks down when it's due to be changed.
Funny, cuz I just noticed that my forks are slow to rebound after a hot 200 mile ride today. 5 years, well, 2 and 1/2 years due to our climate and 19,000 miles later, I'd say that she's due for some new fork oil. I will probably wait until the dead of winter, though. I'll tackle the muffler repack at the same time, although she is getting louder by the day. On a totally unrelated note, I just about " bought the farm " today. I don't want to hijack this thread, so I will make a new post. Jevers
Jay syncs his valves and throttles his body every weekend. No worries there.
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