Soopercereal

Thanks for the help guys, and the lights did when I press the start button but and bright if I just switch the ignition on

Hi guys, it's o lying a quick question, and if we don't get to the bottom of it it's fine as I don't plan to have this bike any longer than Summer at the latest. So I have a Sinnis ST 125, it's only a cheap nasty bike but it's done me really well over the past 6 months and I've had no problems even though I only paid £650 for it... Anywho, when I try to start the bike with the electric start it makes like a wet farming noise, hard to explain, and I have to kick start it (sometimes it starts first time, sometimes it takes a little while). Once it gets started it cuts out pretty quickly, amd if I turn the throttle it cuts out instantly... After a few times though I can get it going, or if I run it with the carb open. I was at a light earlier though and it completely cut out when i was waiting. I think itcould be the battery as the kick start does work eventually but the electric start doesn't. Other than that the bike is working fine and I think will continue to last a little while, just wondering if there are any easy fixes for this sort of thing as I'm not mechanically minded. First post here so thanks for the help, you guys seem to have a nice community