Drum & CW2 TJ Anspach
United States Army
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DRUMMER SS INSTALLATION
These instructions apply to all
Buell XB12 models.
For XB9 models start at step #4.
Remove the Air box cover by removing the 4
T27 torx screws that hold it in place. Donít lose the screws and plastic
Loosen the lock nuts on the mechanical
muffler valve cable and disconnect it from the servo motor. Leave the
servomotor in place with its electrical wires connected.
Carefully work the mechanical cable past
the engine to free it completely. You will have to cut some wire ties and then
replace them later.
Remove the chin fairing by removing the 7
T27 torx screws that hold it in place. Save the screws and plastic washers Ė
you may need then someday.
Loosen the rear axle pinch bolt on the
underside of the swing arm.
Using the rear axle removal tool from the
kit unscrew the rear axle 20 full turns. This loosens the drive belt tension.
Remove the front belt guard by removing
the 3 T27 torx screws that hold it in place. Don't lose the plastic washers.
Unscrew the 2 nuts that retain the belt
tensioner and pull the tensioner off of its studs. The studs are a close fit
on the holes in the tensioner so be sure to pull off in a straight even
manner. Don't try to pry it off. If it sticks then push it back on all the way
and try again to pull it off straight.
Loosen the torcon clamp on the muffler's
Loosen and remove the front band clamp and
the two rear band clamps that hold the muffler to the engine.
Work the muffler off of the header by
Remove the front band clamp and its
bracket from the underside front of the engine.
Remove the (2) 5/16 X 18 button head allen
screws that connect the Drummer to its front bracket.
Remove the 2 ĹĒ X 5/16Ē allen head bolt
from the front bracket.
Attach the front bracket to engine front
boss where the old strap mount was attached using the 2 Ĺ" X 5/16Ē allen head
bolt supplied. Do not tighten it at this time.
If you have purchased the optional chin
spoiler mounting brackets, now is the time to install them (the left one canít
be installed with the muffler in place). If you arenít using the chin spoiler
brackets, skip steps 5, 6 & 16.
To mount the right chin spoiler mount,
remove the two nuts that hold the drive belt idler pulley bracket and place
the bracket over the studs. The right spoiler mounting bracket also attaches
at itís front end with the front muffler mounting bolt. Replace the two idler
pulley nuts and retighten. Leave the front nut in place but loose for now.
To mount the left chin spoiler mount,
support the bike and remove the two bolts that hold the kick stand on. The
left spoiler mounting bracket also attaches at its front end with one of the
side case mounting bolts. Remove that bolt, locate the left spoiler mounting
bracket in place and re attach using the longer bolt we supplied and the kick
stand bolts. Re tighten the bolts and you are done with the chin spoiler
Place the stock torcon clamp over the
Drummerís inlet pipe. Note: The Drummerís pipe can rotate a bit and may seem
loose. Itís supposed to be that way for proper fitment. Leave it loose.
Slip the Drummerís inlet pipe over the
stock header and swing the Drummer into place. It may be helpful to support
the muffler from the floor at this point (unless you have 3 hands).
Line up the two tapped holes in the front
of the muffler with the slots in the muffler bracket. Start the button head
screws but donít tighten them all the way just yet. They go in easy when
everything is lined up. (You might want to put a little blue Loctite on those
Put the two rear muffler bands back on
just like the stock arrangement. Leave them a bit loose for the moment.
At this point, everything is in place but
loose. Push the front of the muffler up and lightly snug up the 2 button head
screws. The muffler should be level to the engine and nothing should be
Tighten the rear
bands to the stock recommendation of 48 to 60 in-lbs. Be careful that the
male threaded rod on the clamps doesnít stick out far enough to hit the idler
Now loosen the front button heads to let
them center and then torque them down to 95 in lbs.
Tighten the 2 ĹĒ X 5/16Ē allen head bolt
on the front bracket to the stock recommendation of 22 - 25 ft-lbs.
Line up the torcon clamp with the
top of the Drummerís inlet pipe and tighten it tothe stock recommendation of 40 - 45 ft-lbs.
Re mount the chin spoiler using the new brackets and the original screws.
Start the bike and check for any looseness
or significant leaks. A very small bit of blow by through the compression
slots in the header pipe is acceptable.
Now ride the bike at around 3500 RPM for
approximately 20 miles so the ECM will learn the new Drummer.
For peak performance, purchase and install
the Buell Race ECM and a K&N filter.