Honda cbr 125r issues

Hello all, have today come across some issues on my cbr, I was riding it earlier and it cut out all of a sudden, (it has happened a couple of times before but I put it down to me stalling it in my ineptitude), it has also happened a few times while idling in neutral in recent weeks. It would not start off electric start after this and it would not easily bump start either. I have managed to bump start it several times since but the cutting out issue continues.When I bump it as I go to rev it the revs seem to hang a few seconds before registering initially. In this time it either cuts out again or it revs successfully after the initial slow registering. The times I have successfully revved it and kept it running I am able to ride it but it sounds bogged down often and backfires alot too. Then upon slowing down it cuts out unless I keep the throttle going above 4000 rpm or so.If I stop and put into neutral it cuts out even if trying to keep revs higher to avoid it doing so.So I'm thinking it could beDirty or badly serviced carb (previous owner said serviced it)Dirty fuel pipesBad air/fuel mixOr something else.Does anybody have any input or experience with similar sounding issues? Any help or input would be greatly appreciated am slightly disillusioned after having to push the p@#ck 2 and a half miles to work earlier and making no progress beyond consistently bumping it with the slow registering revs.Cheers guys and gals via /r/motorcycles https://www.reddit.com/r/motorcycles/comments/at644j/honda_cbr_125r_issues/?utm_source=ifttt