Bought a 2004 CBR600 RR how do i check and add oil

Sorry, I am familiar with the CBR600 RR. Great bike. But I am puzzled by the word "karizma" I know a little Japanese and I don't recognize it. An English translation would probably help, there are several online dictionaries that would help, but I would have to know what the language was to use them..Perhaps you can do better on your end. Please re-post your question with a translation for that word.

There are many reason a vehicle will not start:
1) Battery drained -could be solved by kick starting.
2) No spark-check spark plugs
3) Check fuses
4) Ignition
5) Old fuel.
6) Clogged carburetor (if it is not Fuel injected)
7) Bad fuel pump

think its the same on most bikes just under the seat

change the oil seals and oil in the fork,and avoid wheelies on the bike and off road biking 

Hi there , great bike  by the way.... Okay so you just bought a nice bike, the best thing to to is to assume that it hasn't been done, One thing is for sure the bike shop 9 times out of 10 will not spend much on a trade in and people that sell their bikes usually don't service them before they sell them which leaves you in limbo land so, if the bike is running well then great buy your self a new oil filter and oil , (check owners manual or ask at the bike shop when you buy the oil but if it was me i would used the Motul full synthetic considering the amount of miles the bike is only just run in so she will be a bit tight.
To check the oil it is easy .
First kick her over and let her run until she's at operating temperature, (don't rev it hard or any thing let it do it by itself, once this is achieved , stop the bike , put the bike on its dual stand (if fitted) if your bike has not got one then hold the bike level , now on the motor there is a black twist grip plug , with finger grab face on it , unwind it out and you will see a dip stick , on the dip stick there is two markings , one is the low level the other is the fill level , anywhere below  half way should be topped up no higher than the top mark on the stick, remember the bike must be level,
To change the oil and the oil filter its just a matter of placing the bike on its main stand ( again if your bike only came with the side stand it means that the drain plug will be located on the left side of the bottom of the motor and is usually easy to find) and in most bikes they design the fairing around it so you don't have to remove any covers , and same for the oil filter ,
I hope this info helps you , if you need a more in depth look at how to let me know 
Regards
Roadrunning1 

oil level is in window just under the cover on left side below the fill hole

any honda certified oil will do, but since its an older bike you gotta pay attention cause 2nd gears in older bikes tend to go out more often.