Arnott Installation Manuals
KIT # MC-2904, MC-2905, MC-2906, MC-2907
FOR 2009-PRESENT HARLEY-DAVIDSON TOURING SERIES

Congratulations on your purchase of an Arnott® Motorcycle Air Suspension system. This system provides you with the ability to maintain your bike at a constant level regardless of load, resulting in enhanced vehicle ride, handling, and performance. We at Arnott Incorporated are proud to offer a high quality product at the industry’s most competitive pricing. Thank you for your confidence in us and our product.

Proper installation is essential to experience and appreciate the benefits of this system. Please take a moment to review these installation instructions before you begin to install these components on your motorcycle. The removal and installation of air suspension products should only be performed by a fully qualified, ASE Certified, professional.

It is equally important to be aware of all necessary safety measures while installing your new Air Suspension System. This includes proper lifting and immobilizing of the motorcycle and isolation of any stored energy to prevent personal injury or property damage.

"Elevate Your Ride."

KIT # MC-2904, MC-2905, MC-2906, MC-2907 for 2009-Present Harley-Davidson Touring Series

TruAIR

WARNING: DO NOT inflate the air suspension system until it is installed. Inflation of the air suspension system before both ends are supported by the motorcycle’s frame and/or appropriate suspension components may result in serious personal injury and/or damage to the air suspension system. The maximum recommended air spring inflation pressure is 100 psi.

Arnott Industries® is committed to the quality of its products. If you have a question or problem with any Arnott product, please contact us by calling +1 321-868-3016 during normal business hours or email techassistance@arnottinc.com (In the EU please call +31 (0)73 7850 580 or email Info@arnotteurope.com).

GENERAL INFORMATION:

Reading this manual signifies your agreement to the terms of the general release, waiver of liability, and hold harmless agreement, the full text of which is available at www.arnottinc.com

Avoid damage to air lines and electrical components.

Removal and installation is only to be performed by fully qualified personnel.

CAUTION: Damage to the motorcycle and air suspension system can be incurred if work is carried out in a manner other than specified in the instructions or in a different sequence.

Each owner or installer is unique, therefore installation of this system can be done many different ways. The mounting locations of the compressor and inflation switch are suggestions by our engineers. If proper wiring guidelines and instructions are followed, relocation of the compressor or switch will neither affect the system operation nor void your warranty.

Adjust air shock pressure as required for desired ride quality to maximize the benefits of your system. Excess pressure will result in a firmer ride, too little pressure will allow the suspension to bottom out.

WARNING: To avoid the possibility of short circuits while working with electric components consult your owner's manual on how to disconnect your battery.

WARNING: Refer to the Owner’s Manual for the bike and instructions for the motorcycle lift for all correct lifting procedures. It is also recommended that you protect any chrome or painted surfaces that may be damaged during lifting, removal or installation process.

SHOCK REMOVAL

Use a solid, level surface to position the bike on a motorcycle lift and use all recommended safety techniques. Lift the bike so the rear wheel is just slightly off the ground.

1. Support the motorcycle under its frame. Remove the saddle bags, right side cover and seat. (FIGURES 1, 2, 3)

FIGURE 1
FIGURE 1
FIGURE 2
FIGURE 2

FIGURE 3
FIGURE 3

2. Remove both OE shocks. (FIGURE 4, 5)

FIGURE 4
FIGURE 4
FIGURE 5
FIGURE 5

3. If the motorcycle is a model year 2009-2013 go to Step #6. For a model year 2014-present remove the two bolts at the rear of the right saddle bag support. You will need to reuse the larger bolt and nut on the far right of the motorcycle. Locate the included 5/16 bolt and lock nut. (FIGURES 6, 7, 8)

FIGURE 6
FIGURE 6
FIGURE 7
FIGURE 7

FIGURE 8
FIGURE 8

NOTE:  The Arnott accessory kit K-2850 is necessary when installing Arnott Ultimate Ride Kits MC-2904, MC-2905, MC-2906 and MC-2907 or Smooth Ride Kit 9048 kit for 2014-Present Harley-Davidson® Touring motorcycles equipped with Harley- Davidson’s Saddle Bag Guard Rails (P/N 90200561) or 2014-present CVOTM Touring motorcycles with O.E. speakers in the saddle bags. This kit includes CNC Machined aluminum spacers and additional hardware that was designed to securely adjust the placement of the air suspension compressor so that it will not interfere with the Bag Rails or touch the CVO Speaker connection harness. To order this kit call 1-877-900-0247 or visit www.arnottcycles.com

4. Mount the compressor to the frame with the 5/16 bolt, lock nut, the larger OE bolt, and OE nut. Tighten both bolts. (FIGURES 9, 10, 11, 12)

FIGURE 9
FIGURE 9
FIGURE 10
FIGURE 10

FIGURE 11
FIGURE 11
FIGURE 12
FIGURE 12

5. Check the clearance between the compressor assembly and the rear brake rotor. If the clearance is less than ¼” remove the compressor assembly. Add the included lock washer to the 5/16 bolt and reinstall the compressor assembly. Adding the lock washer will only be necessary in some cases to increase clearance between the compressor and the brake rotor. (FIGURES 13, 14, 15, 16)

FIGURE 13
FIGURE 13
FIGURE 14
FIGURE 14

FIGURE 15
FIGURE 15
FIGURE 16
FIGURE 16

6. If the motorcycle is a model year 2014-present go to Step #8. For a model year 2009-2013 you will need to install then tighten the supplied hex bolt and non-lock nut onto the air compressor bracket as shown below. (FIGURE 17)

FIGURE 17
FIGURE 17

7. Remove the factory bag support bolt on the right side of the motorcycle and install the pump bracket bolt through the hole. Tighten the supplied lock nut on the back side. The previously installed hex nut acts as a spacer to properly align the compressor assembly. (FIGURES 18, 19)

FIGURE 18
FIGURE 18
FIGURE 19
FIGURE 19

8. Attach the included wire extension to the compressor and wrap the wires with the included split loom. Insert the included ¼” air hose into the push-to-connect fitting on the compressor. Route the wires and air hose toward the right side battery cover attaching them to the frame with the included zip ties. (FIGURES 20, 21, 22, 23)

FIGURE 20
FIGURE 20
FIGURE 21
FIGURE 21

FIGURE 22
FIGURE 22
FIGURE 23
FIGURE 23

9. Screw a VOSS fitting into one of the air shocks. Pull out the white plug and insert the 4mm air hose until you feel it seat. Unscrew the VOSS fitting from the shock and verify that the keeper is attached to the hose. Screw the fitting back into the shock and snug tight with a 10mm wrench. (FIGURES 24, 25, 26)

FIGURE 24
FIGURE 24
FIGURE 25
FIGURE 25

FIGURE 26
FIGURE 26

10. Apply blue thread lock to the included ½” cap screws and mount the right shock to the motorcycle with the VOSS fitting pointing toward the motorcycle. Route the air line toward the right-side battery cover. Trim the air line and repeat with the left shock. Route the air line to the right-side battery cover. Make sure the air line will not be pinched when the seat is placed back on the motorcycle. Apply some soapy water to the O-Rings inside the included bolt covers and slide them over the heads of the bolts. (FIGURES 27, 28, 29)

FIGURE 27
FIGURE 27
FIGURE 28
FIGURE 28

FIGURE 29
FIGURE 29

11. Mount the included air manifold under the right-side battery cover. The images below show some options with the included mounting hardware. Trim the ¼” compressor hose and insert it into the push-to-connect fitting on the air manifold. Screw the 2 VOSS fittings into the manifold and following the same procedure as in step #9 attach the 4mm air lines. (FIGURES 30, 31)

FIGURE 30
FIGURE 30
FIGURE 31
FIGURE 31

12. Remove the lower clutch lever perch bolt. Reusing the same bolt mount, the handle bar switch to the handlebar. Route the switch wires down the handle bars, under the fuel tank to the manifold. Using the wiring diagram in the back of this manual complete the electrical connections. (FIGURES 32, 33)

FIGURE 32
FIGURE 32
FIGURE 33
FIGURE 33

13. Before putting the motorcycle completely back together, it is recommended that you air up the system. Spray all the hose connections and fittings with soapy water. If there are any air leaks in the system bubbles will form at these locations.

14. For model year 2014-present motorcycles bag spacers must be added to keep the bags from touching the shocks. Insert the included quarter turn fastener with included washer through the grommet in the bag. Slide included spacer over the fastener on the other side of the bag. Install the included O-Ring into the groove in the fastener. The O-Ring will keep the spacer from falling off the fastener when the bags are removed. (FIGURES 34, 35, 36, 37)

FIGURE 34
FIGURE 34
FIGURE 35
FIGURE 35

FIGURE 36
FIGURE 36
FIGURE 37
FIGURE 37

15. the quarter turn fasteners are not needed if the bags are held in place with screw style mounts from the factory. simply slide the spacer over the screw and use the O-Ring to keep the spacer in place. (FIGURES 38, 39, 40, 41)

FIGURE 38
FIGURE 38
FIGURE 39
FIGURE 39

FIGURE 40
FIGURE 40
FIGURE 41
FIGURE 41

16. The clocking of the shock eyes can be changed to suit the owner’s tastes. Simply fix the lower eye in a vise to keep it from moving. Then grasp the damper sleeve as shown below. Twist the sleeve on the shock body. (FIGURES 42, 43)

FIGURE 42
FIGURE 42
FIGURE 43
FIGURE 43

17. On rebound adjustable shocks, the rebound damping force can be increased or decreased to suit the rider’s preference. Increasing the rebound damping will slow the speed at which the shock extends after it is compressed. This is usually desirable when running higher air pressures than normal for a single rider. For example, riding 1 up would require lower air pressure and less rebound damping than riding 2 up with a fully loaded motorcycle. The increased air pressure is trying to extend the shock faster. This can lead to an uncontrolled bouncy feeling in the rear of the motorcycle. Increasing the rebound damping will help slow down the extension and make a more controlled feeling. (FIGURES 44, 45)

FIGURE 44
FIGURE 44
FIGURE 45
FIGURE 45

The terms Harley-Davidson®, Harley®, H-D®, Buell®, Softail®, Dyna®, V-Rod®, Tri-Glide®, and Sportster® are used for reference only. Arnott Air Suspension products are in no way authorized by nor associated with the Harley-Davidson Motor Company. All references to Harley-Davidson terms and models are for reference and identification purposes only. The use and installation of any Arnott Air Suspension product or kit may adversely affect or void your Harley-Davidson® factory warranty. It is the responsibility of the motorcycle owner to check federal, state and local laws and ordinances before modifying or customizing his or her motorcycle. It is the exclusive and total responsibility of the motorcycle owner to determine the suitability of this product for his or her use. The user shall assume all legal obligations, personal injury risk and all liability duties and risk associated with the use of this product. Arnott Air Suspension products are designed and intended for the experienced on-road motorcyclists only and intended for closed course operation. Arnott Air Suspension products and kits are designed exclusively for OEM manufactured and equipped motorcycles with no modifications. Any installation of aftermarket or customized components may adversely affect the operation and performance of Arnott Air suspension kits and components and may void the manufacturer’s warranty. These directions are accurate at time of publication. Arnott Inc. reserves the right to revise specifications without notice.

Wiring Diagram

Wiring Diagram


11-MC-FLT REV 9 09/27/2018