guys, I`ve got a problem with starting the bike.
after pressing "start" I can hear only "crunck" (or sth like that

It helped some times when I get into 2 or 3 gear, release the clutch and push a little bit Paso.
now, I have to hit the starter (that small thing under the engine)..
so, it`s problem with starter

but the question is: should be the oil let off before removing the starter?
I`m asking cause I`m going to change oil and oil filter and dont know whether to do it before
or after service

another question is: how often should be the oil & filter changed?
I got my Paso last year (soon there will be anniversary

I havent ride a lot, only about 6000km...
what do you think about it?
regards
greg