Carb help!

set608 · May 14th, 2013, 12:17 PM

Was taking apart the carb and this fell out

where does it go in the carb? Also which direction.

parox91 · May 14th, 2013, 01:18 PM

I'm doing my carbs too!

You know the rubber rings on the vacuum side that connect to the plastic par that holds the needle and slides in?

Look at the hole it's going into, and the silver thing fits in there! (Underneath the plastic)

Let me know, I'm pulling my carbs out again later and I'll take pics if you need

cuong-nutz · May 14th, 2013, 07:43 PM

Those collars(#160170) go in before you install the main jet holder things that the main jet screws into.

You can see the collars protruding out inside where the needle fits through.

set608 · May 14th, 2013, 11:41 PM

Ok i got it all back together thanks for the tips. My bike is still idling high at 3500 rpm or it goes below 1000rpm. i got new fuel, ran sea foam, cleaned out air box filter, cleaned out the carbs that were already clean. and have played with the idle screw ( it either idles to fast or to slow when i try to adjust it) its an 07 bike with 12000 miles. maybe a valve adjust next? Maybe new spark plug? HELP

FvnnyL3tt3r1ng · May 15th, 2013, 04:39 AM

Quote:

Originally Posted by set608

Ok i got it all back together thanks for the tips. My bike is still idling high at 3500 rpm or it goes below 1000rpm. i got new fuel, ran sea foam, cleaned out air box filter, cleaned out the carbs that were already clean. and have played with the idle screw ( it either idles to fast or to slow when i try to adjust it) its an 07 bike with 12000 miles. maybe a valve adjust next? Maybe new spark plug? HELP

Well make sure your idle mix screws are set correctly and your carbs are synced evenly. If your turn the bars left and right the idle would change if your accel cable was too tight

FvnnyL3tt3r1ng · May 15th, 2013, 04:41 AM

I'd try turning the screws out at least a half turn though because it sounds like its lean. When you blip the throttle does it hang high then set back down?

set608 · May 15th, 2013, 10:52 AM

It does hang when i blip the throttle. So its too lean?

cuong-nutz · May 15th, 2013, 11:26 AM

Quote:

Originally Posted by set608

It does hang when i blip the throttle. So its too lean?

It could be that it is lean. Also make sure you don't have any vacuum leaks.

Did you rejet the carbs? Change out the needles? intake mods? exhaust mods? More info you have the better we can assist you

The fuel mixture screws when set at 2.5 turns out will have the needle almost flush with the surface of the carb body. Usually 2.5 turns is a good starting point when tuning.

Valve adjustments are done at every ~7500 Miles. You're exhaust valves will always be on the tight end of clearances which will require you to swap in some thinner shims to bring it within specs.

There's a ton of info in the wiki about carb adjusting.

set608 · May 15th, 2013, 03:16 PM

The bike is all stock no mods. when i cleaned the carbs both needles were flush .

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May 14th, 2013, 01:18 PM	#2
parox91 ninjette.org member Name: Not Applicable Location: hamden ct Join Date: May 2013 Motorcycle(s): 2007 Blue Ninja 250 Posts: 171	I'm doing my carbs too! You know the rubber rings on the vacuum side that connect to the plastic par that holds the needle and slides in? Look at the hole it's going into, and the silver thing fits in there! (Underneath the plastic) Let me know, I'm pulling my carbs out again later and I'll take pics if you need

May 14th, 2013, 11:41 PM	#4
set608 ninjette.org member Name: Seth Location: SO CAL Join Date: Mar 2013 Motorcycle(s): 2005 Ninja 250 Posts: 24	Ok i got it all back together thanks for the tips. My bike is still idling high at 3500 rpm or it goes below 1000rpm. i got new fuel, ran sea foam, cleaned out air box filter, cleaned out the carbs that were already clean. and have played with the idle screw ( it either idles to fast or to slow when i try to adjust it) its an 07 bike with 12000 miles. maybe a valve adjust next? Maybe new spark plug? HELP

May 15th, 2013, 04:41 AM	#6
FvnnyL3tt3r1ng ninjette.org certified postwhore Name: Justin Location: Florida Join Date: Aug 2012 Motorcycle(s): Ninja 250 2001 Posts: A lot.	I'd try turning the screws out at least a half turn though because it sounds like its lean. When you blip the throttle does it hang high then set back down?

May 15th, 2013, 10:52 AM	#7
set608 ninjette.org member Name: Seth Location: SO CAL Join Date: Mar 2013 Motorcycle(s): 2005 Ninja 250 Posts: 24	It does hang when i blip the throttle. So its too lean?

May 15th, 2013, 03:16 PM	#9
set608 ninjette.org member Name: Seth Location: SO CAL Join Date: Mar 2013 Motorcycle(s): 2005 Ninja 250 Posts: 24	The bike is all stock no mods. when i cleaned the carbs both needles were flush .