A suggestion for starting your saw with no decomp button is to drop start it. Far easier on you and the saw. Hold the top bar in you right hand and pull on the strater with your left, while lowering the saw slightly with your right. If you start it on the ground like they recommend, you will more than likely get nailed in your left hand/wrist if you do not have an absolute tight grip and are paying attention. Only real issue I have with starting the 290... I drop start all my saws though.
One other issue on that particular line of saw is the summer-winter flippey thingey. I find that if you set the thingey to winter mode, it gets a lot more chips and crap in the filter and faster than in summer mode. It seems to run fine in summer mode, as does the 361, down to freezing. The 210 and 025 run better below 40 degrees F. in winter mode (else the carb tends to ice up and they do not idle right).
The oiler should be set at E (center) for the 18" bar. You will want to up the oil output to high with a 24" bar.
Enjoy... your boat anchor! And they are easy to mod if you want a little more power.