Bike wont start unless its rolled.

[benox]

Well, I was riding around the park for about half hour then i decided to go home. So i rode up the hill and at the top of it it just died.. I sat there trying to kick start it but it didnt work and yes i checked that everything was on. Then i decided to roll start it. I pushed the bike down the hill and it started but it studdered HEAPS and it backfired alot. So i turn around and rode it back up the hill in 2nd it was studdering heaps and backfiring alot, i got up the top of the hill and started to go down my hill and i tried to pop it up into 3rd but it died again.. so i rolled it all the way down my hill in second it started studdered heaps and backfired then I just pushed it into my house?
Can any of you tell me what this is? its only a brand new freekin bike it cant be screwed already. i dont think its contaminated fuel because i just got a new fuel filter recently. what else?

Things ive tried :
Fuel Filter - Working

 

[benox]

Yay, its working .. dont know how, i got teh spark plug out.. the plug works.. I put it back in and it started

 

[cass38a]

Was it possible that you were close to running out of fuel or needing to swich to reserve. When i was close mu bike would start leaning to the right but stall if it lent to the left. It might do similar going up or down hills.

 

[benox]

According to franky, the bike was starved of fuel when i was going up the hill. The tank had barely any petrol as it is.. so i guess that was it.. now its working im gonna go get more petrol

 

[motoluver]

It sounds to be like you ran out of petrol.... Did you even have it on reserve?

 

[Hillz]

Bah hahahahhahahahahahahhahahahahahahahahahahahhaahhahahahahahahaahhaahahahahahahahahahahahahahahahahaahahhahahahahaahahahahahahahahahaahhaahhaqhhahaha LAMO

Benox: MY BIKE DOSENT WORK, boo who who, Franky: did you check the fuel dummy? Benox: Huh? Franky: LAMO

 

[benox]

Lol, i actually did check the fuel.. There was still some in it and when i thought it was a problem with the fuel filter i took the hose off the carby and just let petrol from the tank run out, shitloads of fuel was coming out.. So i think you just got owned

There was some fuel in it, but as i was going up the hill all the fuel was moved to the back of the tank..

 

[scribbles]

oi..dose ur bikes fual switch hav a reserv?