S&S Cycle 49-State EPA Certified 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 comes pre-oiled and does not need to be oiled before use. The element should be replaced every 5,000 miles (8,000
kilometers). If the element is torn, punctured, or has excessive oil build-up replace the element.
A damaged, torn, punctured, or crushed element may allow unfiltered air to enter the engine. In the event of a damaged air cleaner
element, replace element immediately.
Replacement
1- Remove air cleaner cover.
2- Remove element.
3- Install new element on air cleaner backplate.
4- Reinstall air cleaner cover.
Hydraulic Lifters
Hydraulic lifters are self-adjusting. They automatically adjust length to compensate for engine expansion and valve train wear, keeping the valve
train free of lash while the engine is running. When starting the engine, the valve train may be noisy until the lifters refill with oil. If the valve train
remains noisy after twenty minutes of operation, this may be an indication that one or more of the lifters is not functioning properly. Remove and
clean the hydraulic lifter oil filter screen. Consult an S&S service agent if further service is required.
Spark Plugs
Spark Plug Removal:
1- Disconnect spark plug wires from spark plugs by pulling on the molded connector boots. It may help to twist or rock the boots back and forth
slightly while pulling.
2- Unscrew spark plugs.
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.