Could anyone tell me which is the engine oil drain plug and how much oil I should put in on the change. Thank you.

 

 

If you search through the M8 section in here thers an illustration right outta the service manual that shows the proper plug that someone posted up.
Order up a service manual. Boardtracker sells em. Your owners manual may show the correct one for engine oil.
To make the job easier HD sells a proper oil drain pan to slip under the filter to prevent oil from getting all over the motor when you take it off.
Also going to need the correct cap style filter wrench which they also sell.

 

If you have to ask this question, the procedure is 1) take it to the dealer. Thats it!

 

Its just that I want to get on with it now as I've just changed out the cam to a RS468 and I want to fire it up. Its evening time here and I can't call up my friendly HD Dealer.

 

https://serviceinfo.harley-davidson.com/sip/content/document/view?id=1127092882539021331&parameters=highlight%3 D2018+touring%26openProcedure%3D387696#479006!!9!5 767

Is it so surprising that the owners manual (link shown above) might show such vital information as the procedure for changing engine oil, primary lubricant and transmission lubricant?
The subject is detailed in the Owners Manual that came with the bike, the online version available from H-D, or the numerous YouTube videos.

Did you not refer to the service manual to change out the cam?

 

Nope I used Zippers instructions that came with their parts, no problem there. I just thought I would swap it out this evening as I had a bit of time but hadn't thought any further than that.
Thanks for getting me the info so quickly.

 

3 drain plugs, all for different oil, engine, primary, and tranny. all 5/8", remember the crankcase oil is the only one that sits horizontal. the rest are vertical.