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post #1 of 10 (permalink) Old 12-03-2012, 01:41 PM Thread Starter
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KN filters and jets

With the consistancy of the KN filter verses the old foam filters. Do I need to make any adjustments on the carbs or rejet them?

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post #2 of 10 (permalink) Old 12-03-2012, 02:09 PM
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Yup, if you're stepping into K&N filters, you'll need to rejet.
There's lots of posts as to which jets to use but if you check out Voip Doc's link in my
Signature, the jets there would be a good place to start.
Of course you should check how it runs after the change, watch your plugs &
Note any lulls in performance. This can tell you if your running, rich, lean or if your good & just need to tweak the midrange by adding shims to your needle.
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post #3 of 10 (permalink) Old 12-03-2012, 02:11 PM
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Depends

Depends on if you did an ear shave. If using the K&M replacements that fit the standard air box, then most would say no need to rejet. But you may have to adjust the mixture screws.

** I would acquiesce to Kanuck's experience over mine. He has been around a bit longer. I have the K&N replacements for standard box and bike has ran fine for several months. Course, may have run better had I followed his lead. :}

Last edited by Okiebezer; 12-03-2012 at 02:16 PM.
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post #4 of 10 (permalink) Old 12-03-2012, 02:13 PM
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Quote:
Originally Posted by mrseedsower View Post
With the consistancy of the KN filter verses the old foam filters. Do I need to make any adjustments on the carbs or rejet them?

Blessings!
Richard

You should NOT have to rejet. You might have to back out your air/fuel mixture screw 1/2 to 1 turn out if the bike is running too lean.

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post #5 of 10 (permalink) Old 12-03-2012, 02:45 PM
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Quote:
Originally Posted by JM2001 View Post
You should NOT have to rejet. You might have to back out your air/fuel mixture screw 1/2 to 1 turn out if the bike is running too lean.
+1

You only need to rejet if you are installing the K+N "pod" type filters that clamp directly to the carb mouths....(or any other pod filter instead of the stock set up)

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post #6 of 10 (permalink) Old 12-03-2012, 02:58 PM
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been running my k&n stock style replacements for the better part of a year carbs are at three turns out with factory jets no issues yet

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post #7 of 10 (permalink) Old 12-03-2012, 04:24 PM Thread Starter
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yea, I didn't think about that. I am wanting to replace the ear filters with k&n filters.

Like these

http://detailsreview.com/cheap-kn-ka...cement-filter/

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post #8 of 10 (permalink) Old 12-03-2012, 04:52 PM
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if you go with ebay use this guy (autocom_performance) his price is for a set of filters not just one this is who i got mine from and he ships fast $55.97 with free shipping
k&n part number is KA-7586

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post #9 of 10 (permalink) Old 12-03-2012, 11:00 PM
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Depends on what you read as to whats suggested. I've read posts in the past that state even if you change to k&n in the ears you'll probably have to rejet.

That's why I mentioned checking your plugs & such after the change. See how its running.
You may not have to rejet. But I don't suggest changing to the K&N filters & not checking the results to ensure your not running to rich or too lean.

Perhaps I wasn't clear enough in my first post. Sorry about that.
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post #10 of 10 (permalink) Old 12-03-2012, 11:19 PM
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Quote:
Originally Posted by kanuck69 View Post
Depends on what you read as to whats suggested. I've read posts in the past that state even if you change to k&n in the ears you'll probably have to rejet.

That's why I mentioned checking your plugs & such after the change. See how its running.
You may not have to rejet. But I don't suggest changing to the K&N filters & not checking the results to ensure your not running to rich or too lean.

Perhaps I wasn't clear enough in my first post. Sorry about that.
no you were clear this is good info

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