Drain plug on the bottom
FLSTC Heritage Classic
20W-50
3.43 gallons.... or for you brits, thats 13 liters :)
The first FLSTC was introduced in the summer of 1985 as a 1986 model.
on my hd deluxe it is 7/8 max when hot. i think the manual says between 5/8 to 7/8 hot
The manual and technicians say that the gap should be from .36-.40. Personally I use .38 just to be in the middle and my 95' FLSTC has always run great from it.
http://www.drivegreen.com/Motorcycle_Tire_Pressure/HARLEY-DAVIDSON.shtml FXSTC is a Softail Custom with tire pressure 30 psi front tire and 40 psi rear tire. Heritage Softail is FLSTC WITH 36 psi front tire and 40 psi rear tire. Hope this is helpful.
The drain plug is located on the side of the transmission end cover (on the right side of the transmission) at the very bottom center.
These should all be capitalized but WikiAnswers doesn't allow all caps: flhtcui flhrci fltri flhrs flhr flht flstc flstf fxdwg fxdx fxdl fxd fxstb fxstd fxst fxsts vrsca vrscb xl883c xl883 xl1200c xl1200r
Read the Service Manual....its not for beginners...you may want to consult someone whos done it before...some special tools are required to do it properly.
Remove the oil pan drain plug. The drain plug can be found on the bottom of the oil pan. When all of the oil has drained out, put the plug back in. Refill the engine with new oil.
Softail Custom