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Author Topic: ..K & N air filter  (Read 16117 times)

wordslinger

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..K & N air filter
« on: September 07, 2009, 08:52:04 PM »
..just ordered a K&N RC-2290 air filter ($40.00) for my scoot, to upgrade from the original stock filter..

..should I anticipate a jet modification for proper carburetor tuning?..

peace
« Last Edit: September 07, 2009, 09:02:18 PM by wordslinger »
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axy

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Re: ..K & N air filter
« Reply #1 on: September 07, 2009, 09:12:53 PM »
Quote from: wordslinger on September 07, 2009, 08:52:04 PM
..just ordered a K&N RC-2290 air filter ($40.00) for my scoot, to upgrade from the original stock filter..

..should I anticipate a jet modification for proper carburetor tuning?..

peace

I had it on my Kawasaki ZR-7S (750 cc), together with carb re-jetting and new slip on.

I think you will get answer to your question after you install K&N, not before...

Is it "open" type of filter? If so, your carb will probably need more fuel.

If it is just replacement type of filter, then probably no change is needed.

Considering that your Agility is 4-stroke, they are less sensitive to changes in air filter configuration compared to 2-stroke bikes so I think you will do just fine with your current setting.
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wordslinger

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Re: ..K & N air filter
« Reply #2 on: September 07, 2009, 09:19:00 PM »
...looks like this one..

..I'm betting that I will need to re-jet..

..but, hey..that's not a bad thing...maybe a little more power...
« Last Edit: September 07, 2009, 09:25:45 PM by wordslinger »
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Shaka

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Re: ..K & N air filter
« Reply #3 on: September 08, 2009, 12:40:43 AM »
It made a huge difference on mine.  I tried the stock air box after I did my 70cc kit and it would barely run.  I drilled some holes in the air box hoping that would help and I was still not getting enough air.  All is well with the K&N!  I did end up having to run a much bigger jet than I had started with though!  I was trying it with a 90 at first and ended up with a 115.  You won't know for sure till you get it installed, but i would anticipate having to up-jet.  Make sure you don't run it lean!
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axy

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Re: ..K & N air filter
« Reply #4 on: September 08, 2009, 09:20:05 AM »
This is "open" type and probably you will need to add more fuel to the mixture.

Quote from: wordslinger on September 07, 2009, 09:19:00 PM
...looks like this one..

..I'm betting that I will need to re-jet..

..but, hey..that's not a bad thing...maybe a little more power...
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wordslinger

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Re: ..K & N air filter
« Reply #5 on: September 08, 2009, 10:32:01 AM »
Make sure you don't run it lean!

..how can I tell if I'm running lean?
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axy

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Re: ..K & N air filter
« Reply #6 on: September 08, 2009, 12:51:18 PM »
Quote from: wordslinger on September 08, 2009, 10:32:01 AM
Make sure you don't run it lean!

..how can I tell if I'm running lean?

Burnt (hole in a) piston. :)
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wordslinger

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Re: ..K & N air filter
« Reply #7 on: September 08, 2009, 01:47:18 PM »
Quote from: axy on September 08, 2009, 12:51:18 PM
Burnt (hole in a) piston. :)

...umm..yeah...  ???

..any way to tell before it get's that far??...
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Shaka

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Re: ..K & N air filter
« Reply #8 on: September 08, 2009, 07:01:58 PM »
Do a WOT plug chop after you install the filter.  You may be able to get away with just adjusting the mixture screw.  Play around with that before you start messing with the jets.
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wordslinger

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Re: ..K & N air filter
« Reply #9 on: September 08, 2009, 07:21:34 PM »
Quote from: Shaka on September 08, 2009, 07:01:58 PM
Do a WOT plug chop after you install the filter.  You may be able to get away with just adjusting the mixture screw.  Play around with that before you start messing with the jets.

...wots a WOT plug chop...

 :o
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wordslinger

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Re: ..K & N air filter
« Reply #10 on: September 08, 2009, 08:07:20 PM »
Hey!
I am being quoted here!   

Too much air will burn away white insulation around central electrode and corrode the main electrode too.

http://image.superstreetonline.com/f/8999501/130_0703_03_z+reading_spark_plugs+lean_spark_plug.jpg

Also if your exhaust pipe is white-ish inside instead of black, it could be a sign it is running lean.

Finally, do not check that until engine is warmed up because cold engines usually run lean as more air is getting inside due to choke action.

p.s. Here we have probes at technical inspection station they shove up your scooter's/car's ass and measure exhaust for CO, CO2, NO2, SO2 etc... if you know somebody there you could try asking them to help you...


..axy, how long should I run before I would start to see the white deposits in my exhaust...

..I don't want to damage my piston..
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wordslinger

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Re: ..K & N air filter
« Reply #11 on: September 08, 2009, 08:39:58 PM »
Quote from: wordslinger on September 08, 2009, 07:21:34 PM
...wots a WOT plug chop...

 :o

..OK, I did a little research for myself, and found the info on the WOT plug chop...

 ;D
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Shaka

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Re: ..K & N air filter
« Reply #12 on: September 08, 2009, 09:39:14 PM »
You should be all good then!  Happy tuning! ;D
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wordslinger

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Re: ..K & N air filter
« Reply #13 on: September 12, 2009, 06:00:41 PM »
...installed...tuning in process...
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wordslinger

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Re: ..K & N air filter
« Reply #14 on: September 12, 2009, 06:05:48 PM »
...need more fuel...
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