If anyone could help me (link to my post on another forum)

[yohomiesmelly...]

https://www.125ccsportsbikes.com/forums//index.php?act=ST&f=11&t=5816&st=0#entry78846

This is my post on another forum and is to do with the problem i am having with fueling on my TZR125R. I would post it all here but its probably better u read my stuff on there.

If anyone could help it would be great thanks

[yohomiesmelly...]

Managed to get a little more time so i have posted below what i have said in the other forum

[stinkwheel]

I would have a look at the needle valve and check the floats (I think you may be getting mixed up between the throttle valve and the float. The float is a plastic or brass thing inside the float bowl that shuts off the fuel when it reaches a certain level, the throttle valve is what goes up and down when you move the throttle).

Have a look at the 'NSR pissing petrol' thread, I think he has a similar problem to you, just a bit more severe. I have gone into some detail about how to check the needle valve/float assembly on there.

Your float height could also be too high, but as I said to him. Best not to mess unless you have eliminated everything else first.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[yohomiesmelly...]

I know from what i have seen when i opened up the carb that the floats connot be adjusted and they close nothing off but only seem to regulate the amount of fuel inside the float chamber.

Any ideas to the questions. the needle and needle valve are fine and the needle was replaced recently. The throttle valve is that which is moved up and down by the idle adjusted i have watched it in operation when i stripped the carb down.

[stinkwheel]

If the float height is correct and there is no leakage from the needle valve, there is no possible way for the fuel to get out of the float bowl and into your engine without air passing through the carb to suck it out (ie the engine turning over).

The main jet should have no effect on starting the bike as it should be completley closed off by the throttle needle.

The spark is yellow? It should be blue and fat. I was once told that 70% of carburettor problems are electric. Replace the HT lead, plug cap and plug (about 7.50 all in). Clean any rust off the frame earth behind the coil (where the coil bolts to the frame) and check the terminals for corrosion.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[sickpup]

[Odie]

The easiest thing to do is turn your petrol off when you park up.
The reason your flooding is because the needle valve isnt seating correctly and thus blocking the incoming fuel as it is supposed to do or you have some sh-t in the fuel line just above the needle valve causing the problem.
The reason why you have lots of black smoke and stuff is because the fuel is running into your engine and filling the bottom of you crank case, if this continues you could, one time you start it up and get a hydraulic lock and seize your engine / bend your con rod!
It doesn't matter that you have fitted a new needle valve check it!
Can you afford a new engine?
____________________
You are so ugly when you were born the doctor said "I?m gonna drop it, if it falls is a rat, if it flies is a bat."

[yohomiesmelly...]

Thanks for the huge reply sickpup and u were right i did mean the slide.
I will be taking the carb out today and giving it the cleaning of its life while looking into this needle valve.

My needle valve looks like it stick out the roof of the float chamber and it just like a stick with a base on it. Should this be a moving part? Thanks

[sickpup]