Hi
I have a Tao Tao Quantum 150 that I am having trouble with. Here is some background of my scooter.
First off when I got the scooter it would only run for so long then shut itself off, I was advised by my dealership that I was expending vapor lock and to drill a hole in the gas tank cap. I did this and it stopped that problem and it ran fine.
So then I modified my scooter heavily, it haad a
Big bore kit (biggest u can go without splitting the crank apart)
Aftermarket CDI box, not the blue one
Uni air filter with a Nibbi extension
Aftermarket exhaust
So my scooter ran good a couple of times no issues at all. All of the sudden I expiernced the problem of the scooter starting up running for a min or so and as soon as I gave it gas it would die. So I pulled all of the fuel lines off of it and made sure they were clean plus added a extra fuel filter and changed them out. That did nit help it at all.
I had already pulled my carb off and I believed the jets were clean. Turns out they were NOT. My main jet was messed up. So instead of replacing just the main jet and trying it like that I bought a NEW carb. The new carb I bought has a 30mm intake on it vs the 26mm stock which helps it use its power. At first I kept the pilot jet the same at 38 and went up to a 112 on on the main jet.
So here is were my problem is and what is going on. The scoot will start fine and run for a min or 2. I can get it warmed up and get a great idle and it sounding fine by adjusting the air fuel mixture screw on the side.
When I ride it and try to come to a stop my scooter dies and shuts off. This happens when I am trying to stop for a red light or make a really slow turn etc. The interesting thing is that I can almost keep it running if it is on a Incline going UP hill. If I am going down hill or on level then it dies out a lot easier...
So after getting some advice from others I was told to change my pilot jet and see if that helped. So i went from a 38 to a 42 pilot jet and also used a Nibbi to extend my uni filter out more and give it more air. I had the same exact results ;(
I am at a total loss with this scoot as a of right now. Both of the jets in my carb are perfectly clean and i cannot pin point what the problem is...
PS I am from West Virginia and I can provide any pics u need for reference...
Thanks for the help
Scott B