General

The transmission lubricant level should be checked monthly.

Your motorcycle comes equipped with Screamin' Eagle SYN3 Synthetic Motorcycle Lubricant. For transmission lubrication, it is not recommended to mix SYN3 with other lubricant products.

Refer to Maintenance Scheduling → Regular Service Intervals → Regular Service Intervals: 2008 FLHRSE4. The transmission should be drained and refilled with fresh lubricant at specified intervals.

NOTE

When checking the transmission lubricant level, motorcycle should be leaning on the jiffy stand.

Check Lubricant Level

1.	Ride motorcycle until engine is warmed up to normal operating temperature.
2.	When the engine reaches normal operating temperature, turn the engine off and lean the motorcycle on its sidestand.
3.	See Figure 1. Unthread and remove the filler plug/dipstick.
4.	See Figure 2. Wipe off filler plug/dipstick and place it back in the filler hole. Do not thread in. (Dipstick should rest on threads of the case.)
5.	Remove the plug/dipstick and check the level. The lubricant level should lie between the A (ADD) and F (FULL) marks on the dipstick.
	WARNING Be sure that no lubricants or fluids get on tires, wheels or brakes when changing fluid. Traction can be adversely affected, which could result in loss of control of the motorcycle and death or serious injury. (00047d) NOTICE When draining or adding lubricant, do not allow dirt, debris or other contaminants to enter the engine. (00198a)
6.	If the lubricant level is below the A (ADD) mark, add lubricant. Do not overfill. If the lubricant level is above the F (FULL) mark, leakage may occur. The transmission fluid capacity is approximately 0.95 L (32 fl oz). a. When filling the transmission, use Screamin' Eagle SYN3 Synthetic Motorcycle Lubricant. b. If SYN3 is not available and addition of lubricant is required, SYN3 must be completely drained before using other lubricant products. A residual amount of fluid will remain. It is not required to flush out the residual fluid.
7.	Inspect o-ring for tears or damage. Replace if required. Wipe any foreign material from plug.
8.	Install threaded filler plug/dipstick and tighten clockwise to 2.8–8.5 N·m (25–75 in-lbs).

Figure 1. Transmission Filler Plug/Dipstick: FLHRSE4

Figure 2. Transmission Filler Plug/Dipstick Lubricant Level

Changing Transmission Fluid

1.	See Figure 1. Remove the threaded filler plug/dipstick.
2.	See Maintenance and Lubrication → Changing Oil and Oil Filter: FLHRSE4 → Oil Pan. Remove transmission drain plug from the right side of the oil pan and drain lubricant into a suitable container. NOTE Dispose of transmission lubricant in accordance with local regulations.
	NOTICE When draining or adding lubricant, do not allow dirt, debris or other contaminants to enter the engine. (00198a) WARNING Be sure that no lubricants or fluids get on tires, wheels or brakes when changing fluid. Traction can be adversely affected, which could result in loss of control of the motorcycle and death or serious injury. (00047d)
3.	Inspect o-ring for tears or damage on the drain plug. Replace if required. Wipe any foreign material from plug.
4.	Install drain plug and tighten to 19–28.5 N·m (14–21 ft-lbs). Fill the transmission with 0.59–0.71 L (20–24 fl oz) of Harley-Davidson Screamin' Eagle SYN3 Synthetic Motorcycle Lubricant. NOTE After adding fluid, check the lubrication level. Do not overfill or leakage may occur. The transmission fluid capacity is approximately 0.95 L (32 fl oz).
5.	Install threaded filler/check plug and tighten clockwise to 2.8–8.5 N·m (25–75 in-lbs).
6.	Start engine and carefully check for oil leaks around drain plug.