Check youre main jet its should be around 75-80 size(50cc) this also depends on sircumstances. But between that it should be good. Check the idle jet its should be around 33 size and for the idle mixture screw do it 1,5 turn

So when u first start the choke is open allowing fuel and air, and when it warms the choke extends limiting fuel and air is that right?

@ScooterSimplicity

11 ай бұрын

Yes, that's how I interpret it too.

@Stefffeh

6 ай бұрын

It only limits fuel when its out :)

Hi, did you find the cause? I have a very similar problem on a speedfight 4. Starts and idles just fine, but can't throttle until it's had a minute or it will just bog down. Starts and runs great when warm...

@ScooterSimplicity

Жыл бұрын

Hi! No, got it working for a while but then had problems again (just cleaning the carb). I got tired of the carburetor and have changed to a slide carburetor pz19. Video will hopefully come after summer / winter.

@user-kj7uf3vj2k

Жыл бұрын

@@ScooterSimplicity Thanks! I managed to solve it. The fuel mix was simply too rich. Some grit in the fuel mix screw gave it a false bottom and what I believed to be 1.5 turns was something else!

@whatisdreup2

9 ай бұрын

Thats normal as well, any vehicle that works with a carburetor has to be warm before riding/driving. If you start it and try to take off right away it will bug out

@tyleranderson1070

4 ай бұрын

I changed the main jet and did a valve adjustment it made mine stop doing that

Thats normal, your choke is working properly. When is cold is letting more fuel through (running rich) until the engine gets warm. when is warm is on the close position. You said when is warm is runs good. So there was no need to do all this

@tomislavstojanovic5100

2 ай бұрын

др се из изи по ко мђђђђђклллллл

no, dc its ac.