wont start

[leef82]

hi all, I tried to start my nc30 yesterday after a year of not starting it, it had very little petrol and i put tiny bit more in ( old fuel) it kind of started and ran for about 20 seconds on full choke but the revs were very low like it was only running on a couple of cylinders then stopped. i went and put some fresh fuel in today and nothing..
I did notice when it died yesterday some steam and smoke coming from the exhaust and today after spraying carb cleaner down the air box got a small back fire. i also took out the rear plugs and gave them clean, which should be ok as they were new 18months ago and the bike hasn't been ridden since then.
any ideas

[Rascal]

Pull your pilot jets and give them a clean (soak in carb cleaner followed by blowing some air through). It may be worth cleaning everything else whilst you're in there. Have you checked you've got a good fuel flow once there's a vacuum on the tap? Fill with fresh fuel and give it another go. If it's no go then check the coils and leads as described in the haynes.

A few guys on here would highly recommend against spraying carb cleaner down the air box as you can bollox the plugs.

Let us know how you get on.

[leef82]

hi thanks, for the reply, its frustrating because last time i started it started easy and i replaced the fuel and vacum hose. so id expected it ok as its only been sat there in the shed. i also checked the sparks and they seemed ok, but the exhaust did stink of petrol. ill start by pulling of the carbs and giving them a thorough clean and see
thanks