Removing airbox question

Jetfoi · April 20th, 2015, 05:02 AM

hello all...

I am working on eliminating my airbox from my 96 ninja 250 and yesterday I noticed a two hoses connected to the airbox. One was going to the engine block and the other was blocked off and hanging. If I am eliminating the airbox and just putting airfilters on the carbs would I just leave the one hose connected to the engine block and seal the hose off??

engine2.jpg

crazymadbastard · April 20th, 2015, 06:41 AM

Dear Jesus,

The hose to the top of the engine is a breather, I would put the hose back on and fit a small filter on there.

Amen.

agentbad · April 20th, 2015, 07:13 AM

Quote:

Originally Posted by crazymadbastard

Dear Jesus,

The hose to the top of the engine is a breather, I would put the hose back on and fit a small filter on there.

Amen.

So I've got some free time at work today. Which K&N filter should a get for the crankcase breather hose? My old one has a nice size rip in it so needs replacing.

crazymadbastard · April 20th, 2015, 10:20 AM

Quote:

Originally Posted by agentbad

So I've got some free time at work today. Which K&N filter should a get for the crankcase breather hose? My old one has a nice size rip in it so needs replacing.

Dear "Not Jesus",

Please visit here:

http://faq.ninja250.org/wiki/What_do...e_vent_hose%3F

Jetfoi · April 20th, 2015, 10:39 AM

Quote:

Originally Posted by crazymadbastard

Dear Jesus,

The hose to the top of the engine is a breather, I would put the hose back on and fit a small filter on there.

Amen.

@crazymadbastard sorry for my uneducated question...i know it is important and my knowledge of engines is limited...this is why i asked the question.

Thank you for the quick and knowledgeable response!

agentbad · April 20th, 2015, 10:41 AM

Quote:

Originally Posted by crazymadbastard

Dear "Not Jesus",

Please visit here:

http://faq.ninja250.org/wiki/What_do...e_vent_hose%3F

Yeah I think I'm gonna go the small fram filter route this time since it seems easier to clean. Cool.

http://www.amazon.com/Fram-BA3749-FR.../dp/B000A09KM4

crazymadbastard · April 20th, 2015, 10:50 AM

Quote:

Originally Posted by agentbad

Yeah I think I'm gonna go the small fram filter route this time since it seems easier to clean. Cool.

http://www.amazon.com/Fram-BA3749-FR.../dp/B000A09KM4

Advance auto $2.99, they have a black one from purolator for $3.19,

I may go purolator route.

crazymadbastard · April 20th, 2015, 10:52 AM

Quote:

Originally Posted by Jetfoi

@crazymadbastard sorry for my uneducated question...i know it is important and my knowledge of engines is limited...this is why i asked the question.

Thank you for the quick and knowledgeable response!

My pleasure!

crazymadbastard · April 20th, 2015, 10:56 AM

@agentbad
@Jetfoi

Also look into rejeting as most changes to the carbs or exhaust will require it.

I just ordered a Factory Pro kit, comes with new needles and jets:
You can get decen results by just buying individual jets:

http://faq.ninja250.org/wiki/I_want_...uretor_jetting

agentbad · April 23rd, 2015, 05:15 AM

Quote:

Originally Posted by crazymadbastard

Advance auto $2.99, they have a black one from purolator for $3.19,

I may go purolator route.

You got the part number for that because they couldn't find any of the ones on the ninja faq wiki for whatever reason when I was in there earlier this week. I'm already rejetted with jets I got off jetsrus.

Jetfoi · April 23rd, 2015, 05:59 AM

Quote:

Originally Posted by crazymadbastard

@agentbad
@Jetfoi

Also look into rejeting as most changes to the carbs or exhaust will require it.

I just ordered a Factory Pro kit, comes with new needles and jets:
You can get decen results by just buying individual jets:

http://faq.ninja250.org/wiki/I_want_...uretor_jetting

Yes I will probably have to look into this since the bike has a aftermarket header and exhaust system on it, plus with changing the airbox out it will def need to be tuned accordingly.

Thanks

crazymadbastard · April 23rd, 2015, 06:45 AM

Quote:

Originally Posted by agentbad

You got the part number for that because they couldn't find any of the ones on the ninja faq wiki for whatever reason when I was in there earlier this week. I'm already rejetted with jets I got off jetsrus.

here are some
Fram
BA3812

Purolator Breather
Part No: B13153

More info:
http://faq.ninja250.org/wiki/What_do...e_vent_hose%3F

Ghostt · April 23rd, 2015, 10:19 AM

Stupid question time, why you eliminating the airbox?

Jetfoi · April 24th, 2015, 11:48 AM

Quote:

Originally Posted by Ghostt

Stupid question time, why you eliminating the airbox?

i'm stripping out many things going for a custom cafe build

Ghostt · April 24th, 2015, 11:50 AM

Quote:

Originally Posted by Jetfoi

i'm stripping out many things going for a custom cafe build

Ahhh, very good, can't wait to see it

BTW love the buddy Christ

Jetfoi · April 29th, 2015, 08:41 AM

Quote:

Originally Posted by Ghostt

Ahhh, very good, can't wait to see it

BTW love the buddy Christ

thanks!

April 20th, 2015, 05:02 AM	#1
Jetfoi ninjette.org member Name: Thom Location: Virginia Join Date: Dec 2014 Motorcycle(s): 2013 zx6r and 1995 250r Posts: 69	Removing airbox question hello all... I am working on eliminating my airbox from my 96 ninja 250 and yesterday I noticed a two hoses connected to the airbox. One was going to the engine block and the other was blocked off and hanging. If I am eliminating the airbox and just putting airfilters on the carbs would I just leave the one hose connected to the engine block and seal the hose off?? engine2.jpg __________________________________________________ spend all the spare time on two wheels

April 20th, 2015, 06:41 AM	#2
crazymadbastard I'm crazy,your excuse is? Name: Winston Location: Connecticut Join Date: May 2013 Motorcycle(s): 250 2007 ninja Posts: A lot.	Dear Jesus, The hose to the top of the engine is a breather, I would put the hose back on and fit a small filter on there. Amen. __________________________________________________ My Cafe Racer Build My intro post

April 20th, 2015, 10:56 AM	#9
crazymadbastard I'm crazy,your excuse is? Name: Winston Location: Connecticut Join Date: May 2013 Motorcycle(s): 250 2007 ninja Posts: A lot.	@agentbad @Jetfoi Also look into rejeting as most changes to the carbs or exhaust will require it. I just ordered a Factory Pro kit, comes with new needles and jets: You can get decen results by just buying individual jets: http://faq.ninja250.org/wiki/I_want_...uretor_jetting __________________________________________________ My Cafe Racer Build My intro post

April 23rd, 2015, 10:19 AM	#13
Ghostt in your machine Name: Scott Location: Summer Shade, Ky. Join Date: Oct 2014 Motorcycle(s): 98 Ninja 250/F12 aka ZX-2R "SERENITY", 91 Ninja 500/A5 aka ZX-5R "Phoenix", 84 Honda GL1200A "SIREN" Posts: A lot. Blog Entries: 25 MOTM - Jun '17, May '16, Mar '15	Stupid question time, why you eliminating the airbox? __________________________________________________ *violente et ignorantia* ZX-2R BLOG *Twitter and Instagram = Ghostt_Scott* *I'm not here to change your mind, just to inform.*

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