WP AER question

Clapped
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Peoria, AZ, USA
Clapped
Edited Date/Time 5/10/2019 7:37am
Just purchased a 17 150SX with the suspension set up for 200 lbs. I’m a brisk 150, and don’t have the extra dough to send it back to Factory Connection to have it revalved at the moment. I don’t have any experience with the air forks, and his may be a stupid question, but what can I do in the meantime to compensate for the weight difference? Remove oil? Lower the air pressure? I have the stock spring for the rear shock, so I’ll put that on to help on the rear. Any suggestions are appreciated.
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seth505
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seth505 5/7/2019 12:11pm
5/7/2019 12:11pm
Definitely lighter rear spring and yes, just start with less PSI in the fork. Depending on the clicker settings possibly back those off (or start at stock settings with less PSI). I am 150lb and I run approximately 139PSI currently on my 250sx.
Bruce372
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Bruce372 5/7/2019 4:09pm
5/7/2019 4:09pm
You should be good with adjustments... the high speed adjuster on the shock makes a massive difference compared to Japanese shocks imo
garagedog 5/8/2019 1:43pm
5/8/2019 1:43pm Edited Date/Time 5/9/2019 11:20am
Clapped wrote:
Just purchased a 17 150SX with the suspension set up for 200 lbs. I’m a brisk 150, and don’t have the extra dough to send it...
Just purchased a 17 150SX with the suspension set up for 200 lbs. I’m a brisk 150, and don’t have the extra dough to send it back to Factory Connection to have it revalved at the moment. I don’t have any experience with the air forks, and his may be a stupid question, but what can I do in the meantime to compensate for the weight difference? Remove oil? Lower the air pressure? I have the stock spring for the rear shock, so I’ll put that on to help on the rear. Any suggestions are appreciated.
For your lighter weight vs. original owner, put the stock rear spring back on, set the sag and then lower the fork psi to stock (124). Set all clickers back to original factory settings as listed in the manual as your starting point. ** Assuming the original owner didn't revale it.
Kennyfreemoney 5/8/2019 7:57pm
5/8/2019 7:57pm Edited Date/Time 5/8/2019 8:01pm
I would lower the oil. Dump out and measure how much it has and go down 10ML. Mine were done by Kreft and they recommended only 120ML for me (155lbs) and 133psi. That is with they're valving though. The manual recommends 200ML of oil! Huge difference.

You could also call FC and give them the name of whoever you bought the bike from (assuming they had the suspension done) and get the settings. They would probably advise you best on what to do to make it work for you. You may not even need to change valves or shims.

I'm also on a TX300

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bowser
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bowser 5/10/2019 12:56am
5/10/2019 12:56am
Kennyfreemoney wrote:
I would lower the oil. Dump out and measure how much it has and go down 10ML. Mine were done by Kreft and they recommended only...
I would lower the oil. Dump out and measure how much it has and go down 10ML. Mine were done by Kreft and they recommended only 120ML for me (155lbs) and 133psi. That is with they're valving though. The manual recommends 200ML of oil! Huge difference.

You could also call FC and give them the name of whoever you bought the bike from (assuming they had the suspension done) and get the settings. They would probably advise you best on what to do to make it work for you. You may not even need to change valves or shims.

I'm also on a TX300
You do realise the manual states 220ml + 40/-20ml ? running risk using such low oil level
Kennyfreemoney 5/10/2019 7:37am
5/10/2019 7:37am
Kennyfreemoney wrote:
I would lower the oil. Dump out and measure how much it has and go down 10ML. Mine were done by Kreft and they recommended only...
I would lower the oil. Dump out and measure how much it has and go down 10ML. Mine were done by Kreft and they recommended only 120ML for me (155lbs) and 133psi. That is with they're valving though. The manual recommends 200ML of oil! Huge difference.

You could also call FC and give them the name of whoever you bought the bike from (assuming they had the suspension done) and get the settings. They would probably advise you best on what to do to make it work for you. You may not even need to change valves or shims.

I'm also on a TX300
bowser wrote:
You do realise the manual states 220ml + 40/-20ml ? running risk using such low oil level
It's actually 200ML +/-. But yes I do realize its very low. Thats why I called Kreft to get their opinion. They do in fact know what they're doing so I'm not worried about it.


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bowser
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bowser 5/10/2019 3:16pm
5/10/2019 3:16pm
I knew it was close to that. If you run your oil that low make sure you change it a lot more frequent
Shawn_Sinclair
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Shawn_Sinclair 5/12/2019 8:01am
5/12/2019 8:01am
Im 175 pounds and revalved, im on a 18 sxf 350 and im running 125 psi 18 and 22 out. I ride mostly enduro though. Although Im not a huge fan of this air fork. Just me I guess coming from a decade on KYB
blaze 57
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blaze 57 5/14/2019 8:29pm
5/14/2019 8:29pm Edited Date/Time 5/14/2019 8:30pm
Shawn_Sinclair wrote:
Im 175 pounds and revalved, im on a 18 sxf 350 and im running 125 psi 18 and 22 out. I ride mostly enduro though. Although...
Im 175 pounds and revalved, im on a 18 sxf 350 and im running 125 psi 18 and 22 out. I ride mostly enduro though. Although Im not a huge fan of this air fork. Just me I guess coming from a decade on KYB
Its tough going from KYB to the KTM air fork. I have always owned Yamahas's and bought them because I'm not a suspension guru and the KYB's are so simple to set-up and WORK! So I kept my old 2012 450 Yamaha and bought a new 18.5 KTM 450 FE last yr. Not bad forks but nowhere as plush as the KYB's in braking bumps etc.

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