How do i drain my 2005 dyna lowrider's brake fluid back resevoir.

In 2005 cars all what you need is to remove the right hand side small grill under the glass , the brake fluid resevoir is under that small grill

Please start again as there is no connection between clutch and brake.See if there is a bleed screw on the abs unit crack the lines at the brake m/cyl and press on the brake until there is pressure tighten the lines and start bleeding the brakes from the longest line first. Keep an eye on the resevoir level all the while

Your engine is a dry sump engine, the oil drains at the TANK and not at the engine.

the easiest way i find is to drain the resevoir, refil and drain with a vaccuum bleeder until clean fluid comes through the bleeder (topping up the resevoir as you do so)
this works for front or rear brakes.
hope this helps

The oil tank is on the bottom of the transmission. Two drain plugs. The center one is the transmission drain, the one towards the front on the left side is engine oil drain.

There should be a drain plug on the trailing side of the slider. Some have cross point screwdriver heads on the plug others have allen or hex head plugs. Remove the plug and work the forks up and down. If all fails, you can remove the entire tube and turn it upside down.

Clutch