i brought a nc30 as a little project, finaly got it running last week, seemed to be ok would start with no throttle. started it on saturday but as soon as i reved the bike it would die, the first thing i thought was that it was flooded but is there any thing else i should check

thanks rob

did you clean carbs out? strip them, degunk and put back together...

Check your tap as this was what had happened to mine when i bought it, i took the vacum out and it ran fine, but before it had exactly the same symptoms as your saying, i thought it was flooding too! I've tried putting a brand new vacum kit back in my tap but it still wouldn't run, started up with no throttle and it died when i revved it, so out came the vacum again!
I think this should be your problem mate take your tank off, whip the tap off, dismantle it and take out the diaphram, then see if she goes then.

thanks for the replies, think i will give the fuel tap a go first as it shound easier, then if that don't work off with the carbs

can you get it to start on the choke?

let it warm up a bit before revving it and see how it goes?

CMSMJ1 wrote:can you get it to start on the choke?

let it warm up a bit before revving it and see how it goes?

thats what I was gonna say

CMSMJ1 wrote:can you get it to start on the choke?

let it warm up a bit before revving it and see how it goes?

it will start sometimes but it wont run for long, till it cuts out

Have you tried what i said the other day, definately worth doing as i reckon this is your problem. If it starts with choke you only have to give it a few seconds before revving it and if it dies then, the fuel is not getting through.

1990nc30 wrote:Have you tried what i said the other day, definately worth doing as i reckon this is your problem. If it starts with choke you only have to give it a few seconds before revving it and if it dies then, the fuel is not getting through.

was working on the bike yesterday, you was spot on, works fine now thanks