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Discussion Starter · #1 ·
Hi,

Bike is 2010 Ninja250r...

1) how do I adjust the pilot screws to a richer setting? Turning left or turning right?

2) I have noticed that the pilot screw is at the bottom of the carbs, is there a need for a Pilot Screw Adjustment tool? Or is there a way to adjust using a plain screw driver?

3) What is the stock setting of a 2010 Ninja 250r? how many turns from close?

Thank you and more power!
 

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I'm not familiar with that carb specifically, so I don't want to tell you incorrectly, but generally the idle mixture screws are air-bleed adjustments.

That means if you turn the screw in you are blocking the air passage and making the mixture richer. But depending on the design of the carb and the position of the screw, it can be opposite.

All the carbs I've dealt with have been the conventional air-bleed type, but you'll need to consult a service manual to confirm - or you can just make a best guess adjustment and see if it's an improvement.


Jay
 

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Discussion Starter · #5 ·
Which is left or right?

Sorry for this stupid question, but I just want to be sure.... How do I determine which one is the left carb and which is the right?

I mean, if Im seating on the bike, my left is exactly where the left carb is? Or should I face the bike and it is the opposite?

Thanks.
 
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