idle screw question

[dotcom]

I knew RT carb stood for runtong but not NT

 

[crassius]

not sure what the NT stands for, but there are many clones like the NTTC, the WH, and one that has just Chinese chars on it - they are cheap & easy to work with

 

[dotcom]

how is the needle lowered on a standard NT carb?

 

[Fabian]

Unscrew the throttle cable housing from the Carburettor.
The throttle slide (containing the needle) and the return spring can then be removed in one assembly.

Pull the spring towards to top of the throttle cable adjuster. This will allow you to remove the throttle cable from the throttle slide.

With throttle cable removed from the slide, the spring can then be removed from the slide.

This will leave you with just the throttle slide and the needle sitting in the upper portion of the device.

Now you can remove the washer and the needle, with it's attached "E" clip.

Removing the "E" clip can be tricky, but once it's removed, place the "E" clip on the very top notch of the needle, which will (when reassembled) allow the needle to be in the lowest possible position.


Reassembly is the reverse of the process described above.

 

[dotcom]

done, thx!

 

[Fabian]

Always here to help, in any way i can.

 

[dotcom]

That definetely did the trick! Thanks again!

 

[dotcom]

if the RT carb has poor low end torque and the idle screw is screwed all the way in to stay at a fair idle, which jet should be put in between 60,65,70,75,80
?