Yakima BigStack Installation Instructions

BigStack

MiniMuM Crossbar spread 24”
For FaCtory raCks: Check fitlist notesfor your vehicle’s crossbar spread.

HEAVY D

UTY STRAP (2X)

PAD (4X)

T-BOLT (2X)

ADJUSTMENT

KNOB (2X)

BIGSTACK (2X)

BOW STERN TIE DOWN

Buckle
Strap (2X)

Plastic Tube (2X)

Plain Strap (2X)

BAIL (2X)

Steel Hook (2X)

IMPORTANT WARNING

IT IS CRITICAL THAT ALL YAKIMA RACKS AND ACCESSORIES BE PROPERLY AND SECURELY ATTACHED TO YOUR VEHICLE. IMPROPER
ATTACHMENT COULD RESULT IN AN AUTOMOBILE ACCIDENT, AND COULD CAUSE SERIOUS BODILY INJURY OR DEATH TO YOU OR TO
OTHERS. YOU ARE RESPONSIBLE FOR SECURING THE RACKS AND ACCESSORIES TO YOUR CAR, CHECKING THE ATTACHMENTS PRIOR
TO USE, AND PERIODICALLY INSPECTING THE PRODUCTS FOR ADJUSTMENT, WEAR, AND DAMAGE. THEREFORE, YOU MUST READ
AND UNDERSTAND ALL OF THE INSTRUCTIONS AND CAUTIONS SUPPLIED WITH YOUR YAKIMA PRODUCT PRIOR TO INSTALLATION
OR USE. IF YOU DO NOT UNDERSTAND ALL OF THE INSTRUCTIONS AND CAUTIONS, OR IF YOU HAVE NO MECHANICAL EXPERIENCE
AND ARE NOT THOROUGHLY FAMILIAR WITH THE INSTALLATION PROCEDURES, YOU SHOULD HAVE THE PRODUCT INSTALLED BY A
PROFESSIONAL INSTALLER.

prepare For installation

Rotate the BigStack to its upright
position. It will lock into place.

NOTE: Use the red release button on the
base when you wish to fold the mast down.

Insert t-bolt through BigStack
base and adjustment knob.

Install both pads.

Determine position of BigStack
on the crossbar before
proceeding to step 5.

Screw adjustment knob
onto t-bolt. Turn knob
three full turns.

install bigstaCk on Crossbars

ROUND

BAR

ONLY

Snap bail to base,
around crossbar.

Distance from

the BigStack to

the tower should

equal the width
of your kayak (or
kayaks) on edge.

Top notch for
Round Bars.

90°

SQUARE

BAR

ONLY

FACTORY

BAR

ONLY

Upper notch for
Square Bars.

Snap bail to base,
around crossbar.

Insert t-bolt
through bail.

Snap bail to base,
around crossbar.

Rotate t-bolt.

Choose best position
for most secure grip.

NOW COMPLETELY
TIGHTEN THE BIGSTACK
USING FIRM PRESSURE.

INSTALL SECOND BIGSTACK

Repeat Steps 1 through 7 to
install second BigStack.

Install BigStacks so that
the lock housings face
same side of vehicle.

Install BigStacks so that
they are offset and fold
toward each other.

CAUTION: BigStacks may require re­positioning to avoid vehicle contact.

CAUTION: BigStacks may need to be
adjusted to be offset to allow for folding
masts down when not in use.

get ready to

load your boat(s)

NOT RECOMMENDED

Additional straps may be required for more than 2 kayaks.

Follow these Four rules when strapping kayak(s):

1 2 3

Distance of BigStack

from crossbar tower

is exactly the width of

kayak(s) on edge.

Loop strap

under crossbar

at least once.

Loop strap
inboard of

crossbar tower.

4

LOAd

to load strap with
bigstaCk in down position:

Pass strap

through hole.

The bOAT— TIe IT dOWN WITh sTRAPs

Always tie down the bow and stern. See step 12
for proper bow stern tie down procedure.

Raise mast

to upright

position.

Continue tying

boats as shown

on following

pages.

CONTINue TO LOAd The bOAT— TIe IT dOWN WITh sTRAPs

to load strap with
bigstaCk in upright
position:

LOOP STRAP AROUND
BIGST

Cross lines and set
aside.

ACK

POST.

LOAD BOAT.

• Bring straps up and over boat.

• Hang to the side.

• Hook the strap at the
top of the BigStack.

• Slide buckle up so
that it hangs at top
edge of boat.

NOTE: Straps are to be inside of towers. If straps
are to be outside of tower due to tower/bar
position, use STRAP CAPS (Yakima part number

8005015) to prevent straps from sliding off the end
of the crossbars.

Yakima part number 8005015
(sold separately).

ADDED SECURITY:

• Pass strap inboard under
crossbar.

• Pass strap under boat
around base of BigStack.

• Pass under crossbar again
and attach to buckle.

Strap outside
of tower.

Use Strap Cap.

ConneCt
and tighten

• Insert end of strap
into buckle as
shown.

TIGHTEN STRAPS:

• To tighten straps,
hold and pull.

• Secure extra strap.

install sks loCks
aCCording to loCk
instruCtions

(Purchased separately).

bow stern tie down attaChMent

Lines on adjustment knob and BigStack

base must be aligned to lock.

Align

Attach buckle strap to boat.

Attach strap to grab handle or
rescue bar and pull tight.

Slide plastic tube to protect vehicle
at contact point.

NOTE: Twisting the strap will
help reduce wind vibration.

Attach hook to plain
strap loop.

Hook the strap to a metal
surface on the bumper, tow
loop, or frame hole using
hook.

Adjust strap tension by
pulling plain end.

• Apply even
pressure to front
and rear straps.

• Bind up and tie off
any excess strap.

Insert end of plain strap
into buckle.

Failure to secure front and rear of long loads to ends of vehicle
can result in property damage, personal injury, or death.

(press tab)