Synthetic is a good oil - but the Savage really isn't all that demanding and dino oil works fine......as long as the oils have adequate amounts of ZDDP to protect the cam and rockers from wear.

I use the Rotella T4 Dino or T6 Synthetic...works like a charm and is easy to get and is a bargain price compared to specialty oils.

The electrical system doesn't put out much more than what the bike uses. Add a light and you can overload it and drain the battery. A voltmeter to monitor the battery condition and a switch for the added light can work out. Use it when necessary..
Changing to L.E.D.s can free up some electrons.

Ditch the oem muffler.
It's huge, heavy, restrictive, and ugly.

One of Suzukis best color schemes.

The top end design is old. Oils without enough zddp cause wear. Just because oil is okay with a wet clutch doesn't mean it's healthy in the savage.

Looked more into the oil thing and decided to use the new Rotella T6.  Thanks for pointing out some things I had not considered.

I don't know what your lighting goal is - but the stock headlight is small and not very good when compared to a 7" light.  Cruisers for some reason use small headlights.....it is a styling issue I guess.

If you are doing a lot of night riding that little LED you listed really won't shine any light down the road - it is a "spot" light that is made for ATV's and it will light up the road for 50' - which is not far enough to avoid hitting anything.  The light also does not have a verticla cutoff to prevent shining light into other drivers eyes (pull your bike up so it faces a wall and notice how the low beam light has a flat pattern on top....a spot light does not have this cutoff).

There are some LED bulbs you can put in your stock headlight housing that improve the amount of light.....but the pattern is still a bit lacking - but they still are worthwhile.

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1546456433/5#5

I tell you...that vino 125 with transmission mods was pretty fun.  But going 55 on something that small was kinda scary at times.  

Today I got the petcock in.  I just pulled the tank, flipped it and changed it out.  Tank was 3/4 full and barely any gas spilled.  Also ordered a new H4 led bulb.  I had one from Xenon Depot that was really nice but it was too tight of a fit so I spent the better part of the evening looking for a slimmer alternative.   Ended up ordering a Sealight X2S LED bub and in quite impressed.  The low is pretty even with just a small dark spot on the cutoff and the high beam is ridiculously bright.  Also I was surprised that the glare was very minimal.  And the factory dust boot fit with no cutting.

I'm with Norm.  You have a perfectly clean good looking bike.  

My bike has been made to look old, but other that than removing 2" from the fork tubes, slightly different jetting, the muffler, and using a different battery, my bike is 100% stock mechanically.  It works perfect for my needs.