Caution, Caution warning – S&S Cycle Bore 4 1⁄8 V-Series Engines User Manual

Page 14

CARBURETOR

1. Install

Carb

a. Check idle mixture and idle speed screw settings.

Check setting of idle mixture screw, part #11-2354,
on top of carb body. See Picture 29. Turn screw
clockwise to close screw, counting number of turns
to fully closed position - setting should be 1

⁄

turns.

Reset by turning screw counterclockwise to 1

⁄

turns

open. After engine is started, screw must be reset as
explained in “Adjusting Idle Mixture” section of
instructions.

NOTE - Turn idle mixture screw in only far enough to contact seat.
Do not over tighten.

Over tightening idle mixture screw may cause irreversible
damage to carburetor body.

Check setting of idle speed adjusting screw, part
#50-0038.

See Picture

30.

Turn

screw

counterclockwise until it no longer contacts
throttle linkage spool, part #11-2385. Next, turn
screw clockwise until it just contacts spool. Then
turn additional

⁄

turn clockwise to slightly open

throttle plate.

b. Install throttle cables on carburetor.

Locate the correct throttle cable housing bracket in
carburetor kit.

NOTE - The carburetor kit is supplied with two different throttle
cable brackets. The shorter bracket, part #11-2339, is designed
for 1989 & earlier-style throttle cables. The longer bracket, part
#11-2338, is for the throttle cables supplied with 1990 & later
motorcycles originally equipped with a “CV” carburetor.

Apply drop of Loctite

243 or equivalent to threads

of cable bracket screw and install bracket on
carburetor.

Install opening side throttle cable barrel fitting and
throttle cable in throttle linkage and appropriate
side of throttle cable housing bracket. Opening side
cable housing outside diameter is smaller and
measures .190”.

Repeat step 2 for closing side throttle cable. Closing
side cable has a spring around inner cable wire. See
Picture 31.

Install carb on manifold

1. Bolt carb and insulator block to intake manifold

using two

⁄

-16 socket cap screws provided in kit.

(O-ring side of block faces manifold.) Tighten to 18
ft-lbs.

NOTE - If insulator block is not installed, manifold bolts supplied
in kit will be too long and may bottom in holes. Shorter manifold
bolts must be used if insulator block is not installed.

If insulator block is not installed, lower manifold bolt may
damage carburetor bowl causing possible gasoline leak.

Gasoline is extremely flammable and explosive under certain
conditions. Do not smoke around gasoline. Gasoline fumes
are toxic when inhaled. Any gasoline leak or spill constitutes
a health and fire hazard.

d. Adjust throttle cables

NOTE - Throttle grip assembly must be assembled correctly
and work freely to prevent possible sticking during
operation. Throttle must snap closed when released. Cable
routing must be free of tight bends to minimize friction
between cable and housing.

1. Turn threaded throttle (pull-open) cable adjuster to

remove excessive freeplay. Adjust this cable to fully
open the throttle plate when the throttle grip is
twisted completely open.

2. Remove the slack in the idle (pull-close) cable with

the cable adjuster and leave approximately

⁄

” of

freeplay at the throttle grip.

Test throttle to insure that it opens and closes freely.
Turn handlebars to extreme left and open and close
throttle, then turn bars to extreme right and open
and close throttle. If throttle binds, loosen idle cable
adjuster to put more freeplay in cable. Tighten
adjusting screw locknuts after making final
adjustments.

NOTE - Throttle must not bind and must snap shut to fully closed
position when released.

Picture 31

Picture 30

CAUTION

WARNING