Driver/passenger backrest, Installation – Kuryakyn 1661 MULTI-PURPOSE DRIVER/PASSENGER BACKREST User Manual

Page 2

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NOTE:

Due to the great variety of seats available,

to

determine the correct mount height

needed, measure the thickness of the front of the passenger seat. Measure

from the top of the rear fender to the top of the passenger seat as in

PIC 1. Over 6 inches need the tall mounts, 6 inches and under will use the

short

mounts.


Avoid potential pinch or crush injuries! Only perform the

following procedure with the backrest in the lowered (driver)
position.


STEP 2

To adjust the Backrest further forward for the driver, depress the lock pin on the

side and pull the pad to the desired position. Make sure when the pad is in the

desired

position,

the

lock

pin is fully extended. PIC 2

DO NOT extend or retract the Backrest in the upright
position! Keep fingers away from the area between the pad

mount and the backrest when retracting the pad assembly.

The weight of the Backrest could quickly retract it causing

injury.


STEP 3

To adjust the Backrest pad up or down once it is in the desired upright or forward

position, loosen the two Knurled/Slotted screws and slide the pad up or down to

the desired position. When the pad is in the desired position, tighten the

Knurled/Slotted screws securely. PIC 3


STEP 4

To raise the backrest to the passenger position or lower it to the driver position:

fold the locking levers to the straight out position and lower or raise the backrest

to the desired location. PIC 4 Fold the locking levers over to lock them in place.

Gently move the Backrest up and down to ensure the locking pins are engaged in

the slots in the Fixed Mounts. Visually inspect the Shoulder Washers and

Countersunk Socket Head Cap Screws at the pivot point for any signs of

loosening before each ride. Küryakyn requires checking all backrest

attaching fasteners to the torque specifications defined in these

instructions every 3,000 to 5,000 miles.

BOTH PIVOT/HINGE SCREWS MUST HAVE THREADLOCK

COMPOUND RE-APPLIED AND RE TORQUED ONCE REMOVED
AFTER INITIAL INSTALLATION. FAILURE TO DO SO MAY

RESULT IN UNINTENDED LOOSENING AND MAY CAUSE

SERIOUS INJURY OR DEATH. THE FEMALE THREADS IN THE

MULTI-PURPOSE BACKREST AND THE THREADS ON THE

REMOVED SCREWS WILL NEED TO BE CLEANED TO REMOVE

ANY THREADLOCKER RESIDUE BEFORE RE-INSERTING.

RE-APPLY LOCTITE® THREADLOCKER BLUE 242® OR

EQUIVALENT, AS SHOWN IN PIC 5, RE-TORQUING TO

15 FT-LBS (20.3 NM) USING A TORQUE WRENCH AND 3/16”

ALLEN/HEX KEY ATTACHMENT. LET CURE PER THE

THREADLOCK MANUFACTURERS INSTRUCTIONS AFTER

INSTALLATION. IF YOU DO NOT WISH TO

APPLY THREADLOCKER, THEN ORDER A

NEW SERVICE KIT, (P/N 991660) WHICH

WILL CONTAIN SCREWS WITH BLUE

THREADLOCK ADHESIVE PRE-APPLIED.

DRIVER/PASSENGER BACKREST

INSTALLATION

PIC 1

MEASURE FROM
THE TOP OF

FENDER TO TOP
OF PASSENGER

SEAT

PIC 3

LOOSEN THESE
TO ADJUST PAD

UP OR DOWN

PIC 2

LOCK PIN

KEEP FINGERS OUT OF THIS
AREA WHEN ADJUSTING

PIC 4

UNLOCKED

LOCKED

LOCKING LEVERS

PIC 5

APPLY TREADLOCKER
TO SCREW

-cont.-

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