Help GSXR250 GJ72A - Power problem

So what I am experiencing about lacks of power is probably caused by that?

 

Very much thank you mate!

Though I still have other problem of the bike to ask soon.

 

I think that my carb is having a hard time to vacuum a fuel.

 

So my bike, as of the time this thread was made, is running but the carburetor is not sync. So I watched on YouTube on how to manual tune parallel twin carbs and applied it. Then, I install it back and now the bike won't start. Already did adjusting the idle screw and mixture but nothing helps.

Any idea?

 

I understand. But the bike is in need. I applied gasket maker anyway as a temporary fix till I found a replacement for the intake.

Just the bike itself. Seems that it is better to not than to sync it cause it did run when it was not synced.

Confused of what took it to that situation.

 

Now, I noticed that if I slight aggressively run the bike (e.g taking high rpms before changing to 2nd gear), then I will attempt to stop, it dies instead then starting it again seems to be the battery has been already drained. Then I need to bump start it.

Also noticed that the bike gets hotter every time this situation happens.

 

Hello, Does anyone know what are these jettings for?

 

I see. Mine's don't have tho. It's kinda weird and suspicious. I don't know what the previous owner did on the bike but yeah. Does it has to do with the bike sometimes start and sometimes don't? And is it different with the pilot jet cause it's physically look the same from the outside.

For the inlet manifolds, I just bought a used but in good condition ones cause I don't have that money to buy new ones.

 

This is what mine's look like.

 

Guess, I don't have to worry now, especially knowing that mine's don't need jets.

I just cleaned it yesterday btw and yes it was disassembled when cleaned. Hopefully did it right haha. One thing is still a problem, my bike's randomly starts and randomly not. But it has the boggling (I guess) sounds that are sign of trying or almost to start. Sometimes covering the carburator's inlet helps tho. It is really tuff to understand a bike without a full knowledge of being mechanic.