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My bike is Bajaj Pulsar 125 split seat 2021 model.. And not all the time.. But only when the bike is not running for a day.. Or everyday morning only.. It happens once in a day.. And didn't get the meaning of your " nose up & nose down"??
Nose up: front wheel higher than the rear.
 

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... meaning of your " nose up & nose down"??
relative to carburetor, when the motorcycle is going up a steep hill the float level can be very different from when it is going down a steep hill because of the angle of the carburetor. You notice it on a trials bike because we have them on extreme angles and it is a good diagnostic test for any motorcycle that has carburetor floats.
 

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Bajaj Pulsar 125
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Discussion Starter · #24 ·
relative to carburetor, when the motorcycle is going up a steep hill the float level can be very different from when it is going down a steep hill because of the angle of the carburetor. You notice it on a trials bike because we have them on extreme angles and it is a good diagnostic test for any motorcycle that has carburetor floats.
Yes, it stands nose down when I park in centre stand (front wheel down, rear high)
relative to carburetor, when the motorcycle is going up a steep hill the float level can be very different from when it is going down a steep hill because of the angle of the carburetor. You notice it on a trials bike because we have them on extreme angles and it is a good diagnostic test for any motorcycle that has carburetor floats.
 

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Yes, it stands nose down when I park in centre stand (front wheel down, rear high)
Well theres yolur problem right there, if you park it like this for extended time, it will drip out of the overflow tube every time....
 

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Think of it this way: your carburetor float bowl works on the same principal as the tank and float valve on a flush toilet.
:geek: If you can figure out how to fix a toilet, you can figure out how to fix the carburetor float.
 

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2010 Kawasaki Concours 1400
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Under no circumstance should you plug the your carb over flow tube. Consider the possibility of where that excess fuel will collect if the over flow tube is blocked. It can up in the cylinder...goes through the carb, through the intake valve and into the cyclinder. If enough gets in, you will have a condition know as "hydro-lock". Both valves close, the piston goes up on the compression stroke but it gets stopped along the way by the fuel buildup and bang, your piston can't compress the fluid and you just bent your connecting rod...game over. Early model Kawasaki Concours 1000 carbs didn't come with overflow tubes, that's how I know about this problem. Fix the problem
 

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So, did you take it back to the dealer yet?

One other thing to consider is the quality of the fuel you are putting in it. Contaminated fuel will give you problems and the bike doesn't sound like a premium make so may not have a decent fuel filter. Shine a torch into the tank to see if there is anything at the bottom other than clean petrol.
 

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So, did you take it back to the dealer yet?

One other thing to consider is the quality of the fuel you are putting in it. Contaminated fuel will give you problems and the bike doesn't sound like a premium make so may not have a decent fuel filter. Shine a torch into the tank to see if there is anything at the bottom other than clean petrol.
Just a safety note, the torch mentioned here is known as a flashlight in other places and not something like the Olympic torch with a flame. :D
 
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