K&N Problem

[jakehopt]

Ok, I recently installed new K&N Filters with Outerwear (here )

 

So I install them, but everything back on. The start it up.

 

I expected it to sound different, since I took out the airbox completely and got rid of the stock filter crap. But I didn't expect it to run to different.

 

I get it into the field outside my house and attempt to open it up, I runs fine in first gear, but as soon as I shift into second, it bogs out. It bogs till 1/2 throttle, then runs fine, then if you give it more gas then 1/2 it won't go any faster, it'll stay the speed of 1/2. It does this in every gear but 1st, which runs somewhat fine.

 

What do I need to do? Did I install it wrong? If it's jetting (which I figured it is) what do I need to change? I still have the stock jetting configuration.

 

Also I've never changed jetting before so I have no idea what to do if it is that.

 

 

Here are some pics of them installed.

 

 

 

EDIT: Although it looks like the filter is getting hit by the sticking out peice that the airbox was on, it's not. It's just touching the outerwear, the filter isn't touched.

Edited September 14, 2006 by jakehopt

[The Faster Cracker]

man u are running so much more air into the carbs and motor know it doesnt have enough gas to run. you need to rejet. not sure where to jet it at though. ask some of the other guys on here what they are running with that setup. they can help you out. if you dont know how to rejet eihter take it to a stearlership or ask someone to do it for you. i see you are from texas and so am i. i can rejet it for you if u want just let me know.

[r/atvshee]

dude dont worry about the tabs i left mine on when i had stock carbs and same size filters......you need to REJET

[jakehopt]

I know I need to rejet. thanks

 

But what I need to know is what size mains to get? I have a stock setup so should I get bigger or smaller? Plus do I need to change the pilots?

[okbeast]

You'll definately need to rejet the mains, not sure about the pilots. For the mains I would try a 300-320 range and see what you get. Do you know how to do a plug chop?

[sheefreak]

If you are all stock otherwise(mainly concerned w/pipes) start at a 260 and see how it goes. I would think you would be a hair rich at 260's. Need to read the plugs from there. Try closing down your airscrew also. I would try them at about one turn out. Leave the needle where it is.

 

To rejet just take the carbs off, take of the bowls and you will see your main jet looking right at ya. Make sure you keep track of which bowl goes w/which carb, or your choke won't work properly. Take care to not touch the floats, they are easy to maladjust on accident. But belive me, it is not that difficult.

[jakehopt]

If you are all stock otherwise(mainly concerned w/pipes) start at a 260 and see how it goes. I would think you would be a hair rich at 260's. Need to read the plugs from there. Try closing down your airscrew also. I would try them at about one turn out. Leave the needle where it is.

 

To rejet just take the carbs off, take of the bowls and you will see your main jet looking right at ya. Make sure you keep track of which bowl goes w/which carb, or your choke won't work properly. Take care to not touch the floats, they are easy to maladjust on accident. But belive me, it is not that difficult.

 

 

Alright SheeFreak thanks, yeah I have stock pipes. So 260 would be good? I'd rather be a lil rich than lean. Thanks

[sheefreak]

No problem. If it still falls on its face, go up some more. But 260's should be plenty.

[Ducman]

You are running way to lean on the mains. Don't run it this way untill you rejet. It would't hurt to try 260 mains to start (better richer than leaner) but you'll probably be closer with 240's and turn your air screws to 1.0 turn out.