gutted Air box

A

akViper907

Free Member

Oct 22, 2008

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• Oct 16, 2009

• #1

I'm bored and I wanna go in the garage and gut the airbox. I've read a few posts, but can someone real quick just sum up the process in one post?. Also will I have to mess with the Carb settings now because(I'm assuming more airflow will be present). I ask this because I once "modded" my airbox to get more air on my Carbed Yamaha Raptor quad and it ran like chit after so I had to put the airbox back to stock again. Oh yeah, 03 900 mountain cat

 

T

Twostroke

Free Member

Jun 27, 2008

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Bend, Oregon

• Oct 16, 2009

• #2

On my EFI all I did was pop the "shoehorn" out, took 2.589 seconds.

 

F

Funoutfitters.com

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Jul 13, 2009

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FunOutfitters.com

www.funoutfitters.com

• Oct 16, 2009

• #3

Twostroke is right it doesn't take long to pop out the shoehorn but if you do this I would pay close attention to the color of your plugs to ensure all is good.

If there is anything else I can help you with let me know

Jeff

 

G

Going West

Well-known member

Nov 30, 2007

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Canada

• Oct 16, 2009

• #4

you will probable have to jet up 1 or 2 sizes. When i replaced my air box with k&n filters i think i jetted up 3 sizes.

 

A

akViper907

Free Member

Oct 22, 2008

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• Oct 16, 2009

• #5

hey

Alrighty then............so I went out to tinker on the sled and do my airbox only to open it up and discover that its already been done!. Also while checking stuff out I noticed that the sled already has V force reeds in it. They say "V force 3". Are these good reeds?.

 

M

Meatman

Well-known member

Lifetime Membership

Nov 26, 2007

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• Oct 16, 2009

• #6

they help with the bottom end....i run boysen in mine, dad had v froce in his

 

G

Going West

Well-known member

Nov 30, 2007

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• Oct 16, 2009

• #7

Yes there good reeds, they Give a lot more bottom and mid range snap,

 

A

akViper907

Free Member

Oct 22, 2008

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• Oct 16, 2009

• #8

hey

Going West said:

Yes there good reeds, they Give a lot more bottom and mid range snap,

Click to expand...

your pulling my heart strings:face-icon-small-hap

 

1

1Mike900

Well-known member

Premium Member

Dec 5, 2007

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Bellevue, Wa

• Oct 16, 2009

• #9

I would be bummed out now! No extra BHP to look forward to. Just kidding! Next step is too block off the outer internal air vents. They are on the inside behind the secondary clutch and behind the muffler. You don't want the warm dirty air. Now install a cowl induction thru the tach hole! Then I would do twins for the exhaust for max benefit.

Mike

 

D

diesel12

Free Member

Nov 29, 2007

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MN

• Oct 19, 2009

• #10

When you guys gutted the airbox did you remove the entire plate including horns or just remove the horns. I saw a sensor in there and didn't know if not having the plate would affect anything.

 

Z

zr600

Member

Oct 26, 2001

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Bismarck ND

• Nov 2, 2009

• #11

I took out the plate and the horns on a 03 800efi. No problems in 5 years.

 

1

1Mike900

Well-known member

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Dec 5, 2007

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Bellevue, Wa

• Nov 2, 2009

• #12

I was told not to remove the plate from the dealer, But instead drill some holes in the plate for added flow. They were a series of holes 1/2" and 7/16" I added two more 1/2" on the PTO side as the airbox lid intake is more ctr'd toward the Mag side. They said the horns are to aid in the bottom end response like a velocity stack, Then with the other holes it should increase top end airflow? I also deburred the entrance and exit of the horns as there was too much plastic flash. There must be a reason for these besides intake silencing? But the quality of the design is less than desirable!

Mike