hi all i have a swist and go 125 belt driven scooter,she starts on kickstart no probs.but when i turn the throttle she dies.also no elec start when i pull in the break all my lights dim,my break light goes off.please help me

michael mcnamara, December 2009

thanks guys sorry for late reply,had it looked at it was the side stand switch believe it or not.they took it off and wow no problems at all.but have trouble trying to cahange by cv belt,it is very hard to pull in on the spring tention on the back wheel.it wont budge at all any help.

mike mcnamara, April 2010

The running problem dieng when you open the throttle is due to the weak mixture in the carb,there may be a blockage in the carb i.e the main jet as it ticks over ok just dies when you open the throttle,or the settings are wrong like the float height or possibly a faulty vaccum tap or perished or twisted vaccum hose.The chinese imports are made to run very weak from new they have to pass strict emission laws for the eu and this is how they get them through.they make them very weak.also they restrcit them by putting a rubber stopper or sometimes a pin in the diaphragm cap on the carb take this out it will go better.i would also put a new battery on it it sound like its buggered.

adam bike doctor, December 2009

Hi,
is it under warranty? I think you should take back to shop where you got it. If you got it new then you should be ok. let the shop look at it for you

bb, December 2009

it is a biotian btm t 12 on a 09 plate 3 month old

michael, December 2009

Hi, What is make and model of bike? Year etc. two stroke or four stroke?
Take spark plug out. what is the end like? Is it covered in Oil?
With regatrds to electrics. How long Battery been in bike?

BB, December 2009