Heating oil prior to a change, on a non runner

Hi All, I've just picked up an 83 XJ750 (UK) model that hasn't been on the road for the last 12 years, and wanted to treat her to an oil change (so when I do get her going she has something nice and fresh swishing around).
I want to get as much of the old stuff out as I can and know the warmer the better (within reason ) is there anyway I can externally saftely and easily warm her up (I have no access to blow heaters and ambient temp is around 14C in sunny Devon. UK)
I'm thinking I will have to do a couple of oil changes in quick succession anyway just to be on the safe side.
Ta

 

The point in doing them warm is so the oil will drain fast. Just let it drain a long time.

Oil change at short interval is a very good idea.

 

Get more oil out by -

Laying the bike over, each side, empty the filter housing, spin the motor over a few turns, and drain the oil cooler, the added effort drains about 25 OZ. extra.

http://xjbikes.com/Forums/viewtopic/t=2 ... vious.html

 

x2. it primarily is just for speeding up the draining process. just let it sit and drain for a while, like just leave it sit and drain when you're eating dinner or something, lol

 

long time, I can leave it overnight, or till a week on tueday
Will see if I get any willing helpers before I lean the ole girl over too much.
Thanks for your advise

 

It's also to pick up as many contaminates as possible; if some oil has dried or become 'sludgy', warming it up increases viscosity, getting rid of more of the bad stuff. (Viscosity increase is responsible for faster draining as well).

But it's a small effect, 10% or less. Just change it cold and then change the new oil out at 500 miles hot after you've been driving. You'll be fine.