Hello there people, im Rob and I've come across a problem this evening and was wondering if someone could help me?
My Baotian 125 Evolution has broken down.
It starts and ticks over but as soon as i pull the throttle it starts to rev for a second then cuts out completely.

I have noticed recently that it has started to lose a bit of power sometimes when ive been travelling down a road, no incline or decline. Ive just changed the spark plug (on Monday). I do know very little about this kind of stuff despite being a Hydraulic Engineer haha.

Any and all help is appreciated!