S&S Cycle 49-State Certified X-Wedge Engine User Manual
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CAUTION
Threads may strip in the aluminum cylinder heads if over-tightened. Repair will not be covered under warranty.
1- Inspect spark plug threads and clean if necessary.
2- Check plugs for a gap of 0.038" to 0.042".
3- Apply anti-seize to threads of spark plugs.
4- Start screwing spark plugs in by hand. They should screw in easily.
5- Torque spark plugs to 18 to 22 lb-ft (24 to 30 N-m).
Ignition Timing
The ignition timing is electronically controlled and is not adjustable.
Cam Belt Drive Inspection
To inspect belt-
1- Remove the belt cover.
2- Visibly inspect the belt for the following conditions:
a- If the following conditions are found replace the belt:
Internal or external cracks, tears, and chipped or missing teeth.
b- Frayed edge cords are acceptable, but the belt should be monitored for continued wear.
3- If belt is found to be acceptable install a new gasket and replace the belt cover
NOTE: Thin translucent debris inside the belt cavity is normal.
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.
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. 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.
Spark Plug Inspection
If either of the following conditions occurs, further service is required.
1- A spark plug with a black, glossy-wet coating indicates that oil is entering the combustion chamber.
2- A spark plug that is wet with gasoline or has sooty deposits indicates either a faulty ignition or a problem with fuel delivery.
Spark Plug Installation
Spark plugs must be screwed in correctly to avoid cross-threading and tightened adequately to ensure proper heat transfer. Do not over-tighten.
CAUTION