Hd Low Rider Owners Manual
Change engine oil often in colder climates. If motorcycle is frequently ridden less than 15 mi 24 km, in ambient temperatures below 60 °F 16 °C, reduce oil change intervals to 1500 mi 2400 km. Lower ambient temperatures require more frequent oil changes. Water vapor is a normal byproduct of combustion. During coldweather operation, some water vapor condenses to liquid form on the cool surfaces inside the engine. In freezing weather, this water becomes slush or ice.
If the engine is not warmed to operating temperature, accumulated slush or ice blocks the oil lines and causes engine damage. Over time, water will accumulate, mix with the engine oil and form a sludge that is harmful to the engine.
If the engine is allowed to warm to normal operating temperature, most of the water evaporates and exits through the crankcase breather.
AUTOMATED PDF TO TEXT EDITOR: 2007 Dyna: Engine 3-23 HOME TROUBLESHOOTING 3.11 DIAGNOSING VALVE TRAIN NOISE 1. Disconnect spark plug wires, clean around plug base and remove plugs. Connect compression tester to front cylinder per manu- To diagnose and correct noisy hydraulic lifters and valve train facturer’s instructions. Components, use the following procedures: 3. Make sure transmission is in neutral. With throttle body 1.
With engine and oil at normal operating temperature, butterfly plate in wide open position, crank engine contin- check oil pressure at 2000 RPM. If oil pressure is above uously through 5 to 7 full compression strokes.

50 PSI (345 kN/m2) or below 5 PSI (34 kN/m2), inspect 4. Note gauge readings at the end of the first and last com- oil pump, crankcase passages, and oil hoses for restric- pression strokes. Record test results. Tions or blockage. Repair or replace parts as necessary. Repeat steps 2 through 4 on rear cylinder.
Hd Owners Manual
If oil is reaching the hydraulic lifters, remove and inspect. See LIFTER INSPECTION under 3.22 PUSH RODS, 6. If the final readings are 100 PSI (689 kPa) or more, and if LIFTERS AND COVERS. Clean lifter bore of all foreign the final readings do not indicate more than a 10% vari- material. Replace hydraulic lifter if required. Ance between cylinders, compression is considered nor- mal. If compression does not meet specifications, refer to 3.
Examine push rod, lifter and lifter block for proper fit and Table 3-1. Any signs of unusual wear. Replace parts as necessary. Inject approximately 1/2 oz. (15 ml) engine oil into each 4. Visually inspect camshaft lobes for abnormal wear.
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Cylinder and repeat the compression tests on both cylin- 5. Check cam chain tensioning spring and shoe for wear. Readings that are considerably higher during the 6. Remove cylinder head and rocker box assemblies. Second test indicate worn piston rings.
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Check rocker arm end play and check for binding. NOTE Inspect valve stems for scuffing and check stem to guide After installing spark plugs, be sure that throttle plate is in the clearance. Check valve seats for signs of looseness or closed position before starting the engine. Grind valves and valve seats. Compression Test Results.