the sportsters had a service-manual typo a few years ago. they kept coming up 3/4 short of a quart.
here is the 2010 1125 procedure
Pre ride Inspection:
An accurate engine oil check can only be made with the engine at normal operating temperature.
1. With motorcycle on the side stand look at the oil level in the sight gauge. An indicated oil level between the lower and upper lines on the oil level sight gauge is acceptable for safe engine operation.
2. If there is no oil present in the sight gauge lift the motorcycle to a straight up and down position to see if any oil appears in the sight gauge.
3. If oil appears proceed to the Hot Check.
4. If no oil appears place motorcycle on sidestand and add oil in 0.1 L (3.4 fl oz) increments just until you see oil in the gauge and then proceed to the Hot Check
Hot Check Procedure:
1. To bring the motorcycle to normal operating temperature, ridethe motorcycle for a least 10 minutes and 8 kilometers (5 miles).
2. Park the motorcycle on the sidestand while idling and remove the oil fill plug.
3. Idle the engine one (1) minute. Shut off the engine.
4. Read the oil level in the sight gauge.a. Below the lower line: Add oil in 0.1 L (3.4 fl oz)increments until the level is between the upper andlower lines.b. Between the upper and lower lines: It is safe tooperate the motorcycle.c. At (or above) the upper line: Drain oil at 0.2 L (6.8fl oz) increments until the oil level is between the lines.
5. Reinstall the oil fill plug.