S&S Cycle Motorcycle Accessories Manual de servicio descargar pdf (Pagina 4)

Pinion Gear Nut ................................................................90 ft-lb

Use 609 green Loctite liberally on gear and nut--especially on

nut face.

Cam Gear Nut

...................................................................90 ft-lb

Use 609 green Loctite liberally on gear and nut threads

and face.

ransmission Trap Door and Case Bolts...........................18 ft-lb

Use 272 red Loctite

Left Side Main Bearing Nut - coat threads lightly with non-

setting thread sealer such as Loctite 592 and torque with S&S

rench (PN 53-0211) to 125 ft-lbs.

EXHAUST PIPES

ont & Rear Cylinders

Section 1, 2-3/8” O/D X 7-1/2” long

Section 2, 2-1/2” O/D X 1-1/4” long

Section 3, 2-3/4” OD X 4-3/4” long

Section 4, 3” O/D X 12” long

LUBRICATION

● Engine Oil - 0 or 5wt, 1-1/2 quarts

● Transmission and Primary Lube - 75w90, 2 ounces in primary

fill transmission fluid level to overflow hole, 12 to 14 ounces

● There is a .030 restrictor installed in the oil line that feeds the

bottom end – check it often to ensure that it is free of debris

● There is a .015 restrictor in the left main bearing oil feed line

– check it often to ensure it is free of debris

● Oil lines must be made from -4 AN braided hose

S&S VFI FUEL INJECTION

Please use -6 high pressure hose to plumb the VFI system.

Anyone purchasing and using the S&S Billet Pro Stock Engine is

expected to attend S&S Fuel Injection School to learn the procedures

for operation and tuning the S&S VFI Pro Tune II module. G2 will

supply the latest version of the most successful map as a starting

point for proper initial operation.

IGNITION SYSTEM

Ignition Timing - Set dynamic timing at 30 degrees BTDC-

DO NOT use more than 31.5 degrees at any time.

Timing Instructions - The following are instructions how to

statically and dynamically time your engine using the MSD

Programmable MC-4 Ignition Control. First, familiarize yourself

with the MSD instruction sheet provided with the MC-4 ignition

control. The following summarizes how to static time the front

and rear cylinders.

1. Load the appropriate MSD MC-4 file for the configuration of

your motor/motorcycle. This should be coordinated with G2

Motorsports.

Disconnect all wires leading to the coils to prevent accidental

misfire. Also, disconnect the clutch switch at this time.

3. With the MC-4 box plugged in, roll the engine over while

simultaneously watching the crankshaft degree marks

through the primary and the red LED on the end of the

MC-4. When the red LED is illuminated, record the

crankshaft degrees BTDC.

Adjust the ignition pickup plate until it reads 38 degrees

BTDC for the front cylinder.

4. Repeat the process for the rear cylinder – rotating the rear

pickup for the rear cylinder instead of rotating the ignition

pickup plate as in the front cylinder. (See Diagram 2)

5. Verify the "Run Timing Curve". Under the "View" Menu

select "Plot #1" to display the Run T

iming Curve. The

MC-4 ignition box automatically subtracts 4 degrees from the

static timing number. In addition, from the "Run Timing

Curve Screen", specify the degrees of advance to subtract

from the static timing number.

6. For example, if the timing curve is a straight line from 1,000

RPM to 10,000 RPM at 4 degrees, the final dynamic ignition

advance will be 38 degrees minus 4 degrees (which is

automatically subtracted), minus 4 degrees from the "Run

Timing Curve Screen". The final dynamic timing is 30

degrees BTDC.

7. Validate the dynamic timing with a timing light at 4000 rpm.

Loosen screws and rotate backplate to set front cylinder.

Loosen screws and rotate pickup to set rear cylinder.

STARTING PROCEDURE

Due to the large displacement and high compression of this

engine, it is important to make sure the front piston is just

past TDC on the compression stroke before starting. This gives

the starter a chance to get the crankshaft turning before it has

to push the engine through a compression stroke.

Make sure the ignition switch is turned off.

2. Remove the timing plate in the primary cover.

3. Use a 3⁄4" RATCHET handle and a short extension if needed,

insert extension into the engine sprocket and turn the

engine counter clockwise (forward) until it rolls over TDC.

The compression will make it snap over TDC with some force.

4. Check in the timing window to be sure the front cylinder is

at TDC. You may have to turn the engine clockwise

(backward) slightly to see the timing mark.

5. If the front TDC timing mark (TF) is visible, the engine is ready

to start. If the rear TDC mark (TR) appears in the window,

repeat the above procedure.

6. Mark the oil pump pulley for future reference. This

eliminates the need to remove the timing window.

Diagram 2

Loosen screws and rotate

backplate to set front cylinder

Loosen screws and rotate

pickup to set rear cylinder.

1 2 3 4 5 6 7 8 9 ... 15 16

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S&S Cycle Motorcycle Accessories Manual de servicio Pagina 4

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