How To Guide NT Carb Tuning Basics

mrbg

Member
Joined
Sep 22, 2014
Messages
216
I got a email about using the the NT on the Huashang. Where's the info for swapping out the stock carb with the NT ? I've got a NT with 66 thru 70 jets, I'm at 100' ASL.
 


bikejock

Member
Joined
Nov 25, 2014
Messages
495
I got a email about using the the NT on the Huashang. Where's the info for swapping out the stock carb with the NT ? I've got a NT with 66 thru 70 jets, I'm at 100' ASL.
I use a manifold adapter I bought from bikeberry. Had to get shorter bolts & cut out a new gasket for it though but works like a charm.
 
E

Ed kendall

Guest
Me and my son are building a motorized bike it's sort of a cheap 80cc black motor but we ordered us high performance carburetor the motor is bogging down when we give it gas and not running properly we can hear that I've tried changing the spark plugs do you have any ideas on how I might be able to make this motor run better it will barely pull you down the road without pedaling thanks for your time
 

Chreelou

New Member
Joined
Jul 26, 2017
Messages
9
Me and my son are building a motorized bike it's sort of a cheap 80cc black motor but we ordered us high performance carburetor the motor is bogging down when we give it gas and not running properly we can hear that I've tried changing the spark plugs do you have any ideas on how I might be able to make this motor run better it will barely pull you down the road without pedaling thanks for your time
Did you ever figure out the issue? Mine is doing same thing..
 

gary55

Well-Known Member
Joined
Nov 27, 2012
Messages
2,947
Me and my son are building a motorized bike it's sort of a cheap 80cc black motor but we ordered us high performance carburetor the motor is bogging down when we give it gas and not running properly we can hear that I've tried changing the spark plugs do you have any ideas on how I might be able to make this motor run better it will barely pull you down the road without pedaling thanks for your time
Check for proper torque on the head bolts, could also be a jetting issue.
 

Chreelou

New Member
Joined
Jul 26, 2017
Messages
9
Check for proper torque on the head bolts, could also be a jetting issue.
Torque is good on bolts i did indeed check those. It's odd because it ran fine had to replace the throttle assembly though it went together good bike runs good, just bogs when given throttle
 

jeffuehrer

Member
Joined
Apr 12, 2010
Messages
119
I keep leaking gas
When I was leaking gas it was caused by the float. Take the carb apart and bend the tangs down which will lower the level of gas being released into the bowl. It could also be some debris clogging the needle that goes into the bowl.
 

JAM Power

New Member
Joined
May 4, 2018
Messages
7
Jim, first point - it's not good practice to 'serial post', effectively replying to yourself. Better to edit your first post to add afterthoughts. It keeps the thread neater.

Regarding changing the float level, you said it yourself:- "my float tang was bent"
To adjust the float level, you bend the little brass tangs that contact the top of the float.

Is normal for it to be bent (for the cost and materials of those NT Carbs) but you can un-bend it with a hammer. Soft, very soft please. Put it upside down over a flat surface and with a wood block over the beñly of thr float tank you can give soft knocks to correct the problem.
 
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