2000 KLR Rocks Now - Kawasaki KLR 650 Forum
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post #1 of 21 Old 01-18-2009, 11:30 PM Thread Starter
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2000 KLR Rocks Now

Ok.Here's the deal.Brought this m/c with a Big Gun Race pipe complete system already on.Decide to make the best of it.The m/c was NOT jetted for the Exhaust pipe.So I got that straighted out.M/C ran better No popping when slowing down and better mid & top performance.But what I did today before our little ride out to Hi Mt lookout,made the biggest gain..... I removed the intake screen & did the Airbox Mod. And letting that BIG SINGLE breath is WHAT it needed.It now pulls like a freight train.U just gotta love that. I do.

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05 KLR650 & 06 KLR650
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I love seeing the World from a different angle/////
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post #2 of 21 Old 01-19-2009, 06:28 PM
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Did you remove that big restrictive rubber snorkle out of the left side of the airbox? You can see it in the opening where air is pulled in. That also makes a big difference.

2008 DL650 VStrom Yellow and Black
Previous ride was a 2007 KLR Black/Silver, I miss it..
Looking to get back into KLR's sometime soon.

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post #3 of 21 Old 01-19-2009, 07:23 PM Thread Starter
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DXKLR No I didn't.But I went out to the M/C to see what U were talking about and it is now been pulled out. Just got back from a 103 miles it was about 60/40 60 being in the dirt.Great fun.Can't wait the Kenda 270s to get here.The M/C has a worn Dunlop 570 up with a worn IRC Trail winner GP110R on the rear.M/C pushes and skates real bad on loose gravel rocks.. Thanks for the heads up..

BlueByU06
05 KLR650 & 06 KLR650
Vietnam Vet. Big Red 1 68-69 Can Tho & Di-aN
I love seeing the World from a different angle/////
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post #4 of 21 Old 01-23-2009, 03:47 PM
 
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Air box mod?? more infor please.

phil
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post #5 of 21 Old 01-23-2009, 04:57 PM
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Airbox mod:
Usually 4 or 5 3/4 inch or 1 inch holes drilled into the top of the air box for more air access. Keep your stock filter.

**Do not drill holes into the access door. We did this and it created a vacuum of sorts with the oem inlet. The bike didn't run too good until we sealed up the holes in the door, then all was great. Just my first hand advice.

Some people remove the debris screen that is between the airbox and carb, but I prefered leaving mine there, just to feel secure nothing could get thru, yeah I know the chances of that happening are miniscule, but is just me .

2008 DL650 VStrom Yellow and Black
Previous ride was a 2007 KLR Black/Silver, I miss it..
Looking to get back into KLR's sometime soon.

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Last edited by DXKLR; 01-23-2009 at 04:59 PM.
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post #6 of 21 Old 01-23-2009, 06:25 PM
 
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Quote:
Originally Posted by DXKLR View Post
Airbox mod:
Usually 4 or 5 3/4 inch or 1 inch holes drilled into the top of the air box for more air access. Keep your stock filter.

**Do not drill holes into the access door. We did this and it created a vacuum of sorts with the oem inlet. The bike didn't run too good until we sealed up the holes in the door, then all was great. Just my first hand advice.

Some people remove the debris screen that is between the airbox and carb, but I prefered leaving mine there, just to feel secure nothing could get thru, yeah I know the chances of that happening are miniscule, but is just me .

What about removin the foam thingy? What needs to go in there to act like some kind of filter?
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post #7 of 21 Old 01-23-2009, 06:34 PM
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The foam thingy is your filter, don't remove it .

2008 DL650 VStrom Yellow and Black
Previous ride was a 2007 KLR Black/Silver, I miss it..
Looking to get back into KLR's sometime soon.

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post #8 of 21 Old 01-23-2009, 07:31 PM
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Quote:
Originally Posted by DXKLR View Post
Did you remove that big restrictive rubber snorkle out of the left side of the airbox? You can see it in the opening where air is pulled in. That also makes a big difference.
Thanks DX for mentioning this FREE mod that takes very few skills to complete. Plus the BaaWaaah factor is cool.

Phil doing the L mod (drilling the airbox) is a major difference and should be seriously studied before completing. Blu already had the biggest exhaust system installed and it does require more air.

-A stock KLR is already very lean from the factory. Completing the L mod will only make it leaner and that is not always good.
-Do the needle jet needle mod (.22 cent mod), and open the idle jet air screw to 2 to 2.5 turns before you do anything else.
-A Uni air filter is a plus for more than one reason.
-Remove the rubber air snorkle.
-Get it running well then start making decisions on other improvements.

I like to do 'one improvement at a time' if I can. This allows you to discover the plus's and minus's of your improvement.

Read, read, read and attend Tech Days if possible. TD's are fun and you have the opportunity to learn a lot about the KLR.

Tim

2005 KLR 685
2015 Yamaha Super Tenere ES, 5/23/2015
2012 Yamaha Super Tenere; Purchased 7/30/2011; Sold 5/23/2015
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post #9 of 21 Old 01-23-2009, 08:43 PM
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Tim makes a great recommendation, that I always seem to just take for granted that people probably know. The KLR's are lean runners. The airbox mod would need to be in conjuction with needle mod, or slightly larger main jet installation, and or definatetly if you upgrade the exhaust pipe which would definately dictate an adjustable needle and or possibly larger main jet.

2008 DL650 VStrom Yellow and Black
Previous ride was a 2007 KLR Black/Silver, I miss it..
Looking to get back into KLR's sometime soon.

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post #10 of 21 Old 01-23-2009, 10:02 PM
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The L-mod is a strange thing. Some people report no performance change. Others report a significant power increase while still others report a power increase along with surging and pinging because it's too lean. The latter is most often the case.
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