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Yep. We did all that. The switch is not faulty according to the tests. We then discovered the source of the weak spark. The ignition coil was blown, so we got a new one, installed it and now we get a nice big spark. Bizarrely, that was not the issue! This thing is a piece of junk and needs...

Nevermind.. It's stopped working again. Stopped working with the stock head. We suspected it to be the top end gone, but we are wrong. It will not start at all. Fuel leaks out of the exhaust manifold and the carby overflow valve so the cylinder is most definitely getting fuel. Plug gets wet...

We finally got the little thing running! Turns out it really was nothing to do with the carb's insides. We fiddled with the mixture and idle screw together, and we found the correct settings. When we got the bike to start on the first/second kick with the mixture screw, we were onto something...

I did what you said, and we managed to get it to idle by fiddling around with the mixture screw! That was definitely the problem. Unfortunately, things still aren't right. I pull the throttle, and the engine only rises slightly. The gold needle thingy is moving up and down correctly. It's most...

Thanks a lot for the reply, mate. It's a lot of help. >Ignition switch is dead It couldn't be. It's a brand new one from ebay that I installed. When I do manage to get the engine started and hold down the throttle, I can flick the switch to "OFF" and the engine turns off with full throttle. I...

I bought myself a PW50 from gumtree for $650 (I was ripped off lol). Picked it up around night in the rain so I was unable to inspect it properly. I was too excited as it's my first mini bike and I let that get the best of me and I'm now paying the price. Guy started it, it ran. Tells me that he...