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Hopefully a new ACS question - can the ACS be set to a higher ride height?
I have a problem with the rear bottoming out riding 1 up or 2 up. I disconnected the purge valve and manually fill the bag to 50lbs for 1 up and 75 for 2 up and the bottoming out stops. After riding for a hour I get a suspension fault that clears when the bike shuts off.
My question: can the ACS be programmed for a higher ride height than stock?
Thanks
Last edited by Peter Aawen; 05-27-2023 at 09:10 AM.
Reason: Expanded title to briefly ask the question... + then (time) - than (alternative) ;-)
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Very Active Member
Originally Posted by Bunson
I have a problem with the rear bottoming out riding 1 up or 2 up. I disconnected the purge valve and manually fill the bag to 50lbs for 1 up and 75 for 2 up and the bottoming out stops. After riding for a hour I get a suspension fault that clears when the bike shuts off.
My question: can the ACS be programmed for a higher ride height then stock?
Thanks
You could recalibrate using BUDS with thicker spacer blocks.
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Very Active Member
Originally Posted by EdMat
You could recalibrate using BUDS with thicker spacer blocks.
OR you could dis-connect the AUTO fill feature and just do it manually like many here have done ..... Mike
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Very Active Member
Originally Posted by Bunson
I have a problem with the rear bottoming out riding 1 up or 2 up. I disconnected the purge valve and manually fill the bag to 50lbs for 1 up and 75 for 2 up and the bottoming out stops. After riding for a hour I get a suspension fault that clears when the bike shuts off.
My question: can the ACS be programmed for a higher ride height than stock?
Thanks
Well, if you ride around 1-up for a time, and let the system work on its own with everything working as it should, come back and check the pressure, what pressure is the system maintaining? Is your air compressor even working anymore?
And, am I correct, in that, you actually starting having ride hight issues last year after a tire change? Sometimes a tech will remove the lower shock bolt during that job, and disconnect the sensor, in order to drop the swing arm further. Is the sensor linkage connected, and is it connected properly and not backwards? Or, does it look like it's been damaged, as in, he didn't disconnect the sensor when he hung the swing arm from it.
Doug
2023 RT Limited, RT 622, BUDS/BUD2 Megatech/Megatronic
”Freedom is not a loophole”
F4 Customs SWCV, Ultimate, Lidlox, Adjustable Side Vents, Leather Like Grips, SS Grills, Centramatic, Garmin XT2, BajaRon Original Sway Bar w/ Lamonster links, P238
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Wow, I'm impressed Snowbelt. You must have the best memory around here.
Yes, this did start after a tire change but I haven't been able to draw a connection. The system works has intended as far as adding and releasing air. I'm 200lbs + gear and the ACS will maintain about 35 to 40lbs. I've found that if I disconnect the purge valve and run 50lbs (which lines up with the chart for manual fill in the manual), no more bottoming out.
I have noticed that the shock feels smoother at 50 versus 20. So I have wondered about the shock but see no leakage or damage and this began with 10,000 mi on the bike.
I have thought of making up an adjustable Heim joint rod to replace the stock rod from swing arm to sensor.
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Very Active Member
Originally Posted by Bunson
Wow, I'm impressed Snowbelt. You must have the best memory around here.
Yes, this did start after a tire change but I haven't been able to draw a connection. The system works has intended as far as adding and releasing air. I'm 200lbs + gear and the ACS will maintain about 35 to 40lbs. I've found that if I disconnect the purge valve and run 50lbs (which lines up with the chart for manual fill in the manual), no more bottoming out.
I have noticed that the shock feels smoother at 50 versus 20. So I have wondered about the shock but see no leakage or damage and this began with 10,000 mi on the bike.
I have thought of making up an adjustable Heim joint rod to replace the stock rod from swing arm to sensor.
Well, full disclosure, I went back and read your older posts. Adjustable link - I like the idea. I like things to work the way they are supposed to work. Sometimes though, simple is better. So, if you ever change your mind, many of us have just gone to full manual. As long as your system doesn't leak, you should only have to unplug the vent valve, and remove the suspension relay or unplug the compressor. Typically, that doesn't cause a suspension fault light, unless the pressure / ride height gets too low. If your system does leak down, you'll need to just run tubing directly to the Schrader valve from the air bag and forget the rest. Good luck.
Doug
2023 RT Limited, RT 622, BUDS/BUD2 Megatech/Megatronic
”Freedom is not a loophole”
F4 Customs SWCV, Ultimate, Lidlox, Adjustable Side Vents, Leather Like Grips, SS Grills, Centramatic, Garmin XT2, BajaRon Original Sway Bar w/ Lamonster links, P238
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Very Active Member
It could be that your system needs calibration, which can only be done with BUDS.
2020 RT Limited Deep Marsala Chrome
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Very Active Member
If it still looses air pressure you could have a bad/dirty check valve. This is the most common cause of the system bleeding/leaking air. Bruce
New to Sue and I
2021, LTD, Asphalt Gray, 22,000 miles
Gone but not forgotten
RTS 2011 SM5, 95,000 miles
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I did have the ACS calibrated when the problem first started. It holds air fine. I disconnect the purge valve and can put whatever amount of air and it holds for weeks if not longer. That's my dilemma, it works fine except it runs about 10-15lbs less than what the bike needs and what should be correct based on the manual fill chart. I can continue this way but it sure would be nice if I didn't have to keep changing the pressure between 1 up and 2 up riding.
Manual Fill Chart.jpg
Last edited by Peter Aawen; 05-30-2023 at 08:41 AM.
Reason: then... :-/
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Ozzie Ozzie Ozzie
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Originally Posted by Bunson
I did have the ACS calibrated when the problem first started. It holds air fine. I disconnect the purge valve and can put whatever amount of air and it holds for weeks if not longer. That's my dilemma, it works fine except it runs about 10-15lbs less than what the bike needs and what should be correct based on the manual fill chart. I can continue this way but it sure would be nice if I didn't have to keep changing the pressure between 1 up and 2 up riding.
Manual Fill Chart.jpg
Bunson, I sent you a PM yesterday with my contact information...I may be able to help with your air ride...CHECK YOUR PM IN BOX...larryd
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