running problems

My wee bikey's not going properly. It revs up fine in 1st, 2nd and 3rd, but in 4th, 5th and 6th it'll only rev to about 6000rpm. It's not pulling right either when it's in the top 3 gears. It's also cutting out. Petrol tank is clean, venting and petrol's flowing properly. Electrics have...

Hello All, Just joined this forum as i've just bought an '87 ZL400. I really like the Eliminator, my uncle had this one with running problems so he sold it to me for £200. The bike looks in great condition. It will start on the button, run for about 10 mins with the Revs 'seeking' then it...