S&S Cycle Replacement Engine - Manual (Page 6)

6
Recommended Engine Oils
Ambient Temperature Range
Viscosity Grade
Below 40°F (4°C) (Winter Only) SAE 10W40
40°F (4°C) to 100°F (38°C) SAE 15W50 or 20W50
50°F (10°C) to Above 100°F (38°C) SAE 25W60
60°F (16°C) to 100°F (38°C) SAE 50
80°F (27°C) to Above 100°F (38°C) SAE 60
Notes: • Use only API SG or SH rated oil. • S&S recommends regular oil changes every 1,000 miles (1600 kilometers) when using petroleum-based
oil not specifically formulated for motorcycles.
NOTE: S&S® recommends using Mobil 1 V-Twin synthetic oil. S&S recommends regular oil changes every 1,000 miles (1,600 kilometers) when using
petroleum-based oil not specifically formulated for motorcycles.
Checking, Adding & Changing Engine Oil
See the motorcycle owner’s manual for information on how to check, add, and change the oil and filter.
Hydraulic Lifter Oil Filter Screen
The access screw for this screen is located on the right side of the crankcase, beside the rear tappet block. Carefully remove the screw to expose the
spring and filter screen. Remove the spring and filter screen from the crankcase. Clean or replace the screen. Reinstall the screen (open end down),
spring, and screw.
Gas Tank Fuel Stainer & In-Line
Inspect and clean the gas tank fuel strainer according to the motorcycle owner’s manual. If an in-line filter is used (recommended), it should be
replaced or cleaned according to manufacturer’s specifications.
Carburetor
The carburetor has been specifically set up for emissions control. All jets are fixed at the factory.
Idle Speed Adjustment
1- Operate motorcycle until engine is warmed up (typically 15 minutes).
2- The idle speed adjustment screw is located on top of the carburetor just under the throttle cable guide. Use a long, blade-type screwdriver to
adjust the idle speed to 1,050 RPM.
Air Cleaner Element
The air cleaner element is a special carbon impregnated element designed to reduce the amount of fuel vapor from escaping the carburetor. The
element should be replaced every 5,000 miles. It is designed to be run dry; i.e., without oil.
NOTE: Oiling filter will cause improper engine operation.
If the carbon filter element is torn, punctured or has excessive build-up, replace the assembly.
A damaged, torn, or crushed element may release carbon into the engine resulting in severe engine damage. In the event of a damaged
air filter- replace filter immediately.
Replacement:
1- Remove air cleaner cover and filter element from backplate.
2- Install new carbon element on air cleaner backplate by stretching the smaller diameter around the hub of the backplate. It should be a tight
fit. If not, turn it around.
3- Reinstall air cleaner cover. S&S recommends applying Blue Loctite® to the three Phillips oval head screws. Tighten screws until they bottom
out.
CAUTION
Engine Oil
Engine oil is a major factor in the performance and service life of the engine. Use the proper viscosity of oil for the ambient temperature range
anticipated before the next oil change as shown in the following table.