Air Um Down!!!!!! - Kawasaki KLR 650 Forum
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post #1 of 14 Old 02-13-2009, 05:03 AM Thread Starter
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Air Um Down!!!!!!

I'm kinda new to dual sport and just started playing with air pressure the last few months. I have noticed a diffrence but I tried something yesterday to prove it...I tried to see what the diffrence really would feel like so I did a little experiment yesterday after work.

Running a K270 rear and still have a stocky on the front.

I was at 35 PSI rear 32 front (street) and I hit a tank trail consiting of hard packed sand and lots of loose stuff covering the top of it. There are also patches of red clay and deeper sand anlong this trail. It was straight no turns to speak of.

At road PSI @ 35 to 40 mph she was floating all over standing , setting fwd on the tank, setting back on the seat. Front end felt like she wanted to wash out each time I hit loose sand. Pretty unnerving.


Aired down to 18 PSI front / rear....... she was loving that. Ran the same strech of road same speed, same direction, same line trying to keep it as close to the same as I could a I felt like I was almost as solid as pavement. Went back to the starting point... TooK it up a notch and was fine running 70 mph and could have done it all day. seated, standing what ever, HUGE diffrence!!!!

So for the new guys out there do an experiment on your favorite trail.... it'll take the doubt out of it!

Last edited by Capt stan; 02-13-2009 at 06:43 AM.
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post #2 of 14 Old 02-18-2009, 02:18 AM
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hey stan how much air presure did you have in the front forks?

phil
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post #3 of 14 Old 02-18-2009, 06:32 AM Thread Starter
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Quote:
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hey stan how much air presure did you have in the front forks?

phil
I didn't know you could put air pressure in the forks..wanna enlighten me........
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post #4 of 14 Old 02-18-2009, 07:10 AM
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There is an air inlet at the top of each fork under a cap. In actuality, these are for letting built up gases and or air out of the front forks, but some people put a few pounds of air into each fork to stiffen them up. I preferred using a longer spacer on top of the fork springs as opposed to air.

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Previous ride was a 2007 KLR Black/Silver, I miss it..
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post #5 of 14 Old 02-18-2009, 09:30 AM Thread Starter
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learn something every day... I'll have to look
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post #6 of 14 Old 02-18-2009, 09:52 AM
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learn something every day... I'll have to look
I use 15lbs in the forks for the street. then let it out for off/road. I found like you did that soft is better off road.I also set the rebound to the highest numberon the rear shock for street and lowest for dirt.

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post #7 of 14 Old 02-18-2009, 11:05 AM Thread Starter
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so how much air can they hold... is too much PSI gonna blow the seals on the forks?

How much do you let out for dirt from 15 psi?
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post #8 of 14 Old 02-18-2009, 03:35 PM
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Yes you have to be careful of how much you put in and then how much aggresive riding and compressing of the forks you do. I never went over 10 PSI. That just seemed excessive at that point. Not saying anyone elses setting is wrong, just simply stating my point of what I think was enough. Progessive springs and slightly longer spacers, were a huge improvement over using air.

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Previous ride was a 2007 KLR Black/Silver, I miss it..
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post #9 of 14 Old 02-18-2009, 05:41 PM
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The 08's and 09's do not have the Schrader valve in forks like the earlier years.
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post #10 of 14 Old 02-18-2009, 05:52 PM Thread Starter
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The 08's and 09's do not have the Schrader valve in forks like the earlier years.
I guess that why I'm having a hard time finding it...lololololo
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