Hi,
I have some doubts about oil change and want clear some things in my mind.
I did read procedure stated in service manual and owners amnual.
I bought yamalube 10W40 oil and HiFlo HF145 oil filter (black-green box).
As I understand I have to:

1. Undo oil filler cap.
2. Undo oil drain bolt on crank-case and drain oil from crank-case.
3. Undo oil bolt on oil tank and drain oil out.
4. Undo oil drain bolt on oil filter and drain oil from filter case.
5. Remove oil filter cover and replace filter element.
6. Install all drain bolts (Crank-case, oil tank and oil filter).
7. Fill little less then 2l of oil and then start engine for few seconds.
8. Fill remainder of oil till 2.6l.
9. Undo bleed bolt on filter cover and start engine until oil start to go out.
10. Warm up engine and then check oil level.
Is this above correct procedure?
Few more questions:

Service manual says I have to remove camshaft sprocket cover before draining oil but owners manual doesn't. Do I really have to do this?

Service manual say when you fill first part of oil race engine for 5-6 times. What does this mean? Can I just start engine and let it idle for several seconds?

I read somewhere on this forum when draining oil from oil tank its wise to put back oil filler cap before I unscrew oil tank bolt and then slowly undo oil filler cap - to make less mess in front of bike. Is this correct?

Do I have to replace eny of bolts or washers or Orings?

Is it essential to have torque wrench or can I screw bolts with sensitive hand? I have only big one 60Nm-200Nm.

If anyone have some other guideline please write.

Sory for long post and thaks for answer in advance.