Installed Studebaker W/jet kit - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 12 Old 05-29-2008, 10:01 PM Thread Starter
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Talking Installed Studebaker W/jet kit

I just finished installing my Studebaker exhuast with the jet kit that comes with it on my 2007, and I must say that I am very pleased with the results!! I followed the instructions for road race. Drilled slide hole, 150 main jet, clip on the 4th slot, also turned out the fuel mixture 3 1/2 turns, and pulled out the snorkle. What a diff. it made.. I would def. say that it was well worth the $216.00. The bike now pulls stronger than before, power wheelies with no prob. at all, and pulls harder all the way to redline. I was hesitaint to do this mod because I read that this bike does not really gain any HP from exhaust and jet kit. We'll, I can't say if I gained HP, but the bike does FEEL faster, noticeably.. The exhaust is much louder now when you gas it hard. Prob. would compare noise level to a ducati w/aftermarket exhaust. Not as deep obviously..

Last edited by jusmoov; 05-29-2008 at 10:05 PM.
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post #2 of 12 Old 05-29-2008, 10:31 PM
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That is great. I love my Jardine and my buddy has the same thing you have. Per Eagle Mike's recommendations we ended up going back to the OEM 148 Main, put the e clip on the middle position of the needle and only go 2 1/2 turns out on the idle mixture screw. If you check your plug, you will probably find you are running rich. I couldn't feel any power reduction in our current set up from yours but the mileage increased a bit more to back above 45 mpg. If yours is doing above that and it feels fine, then by all means it won't hurt a thing to keep it as is. Ride and enjoy...

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 12 Old 05-30-2008, 05:15 AM Thread Starter
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I guess Ill check my plug after a few more rides, thanks for the feedback. That carb is such a pain in the a** to get out and back in!
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post #4 of 12 Old 05-30-2008, 02:42 PM
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Out and in?!!!
I never took mine out. Just remove the bracket on the left side of the bike behind the side stand safety switch cover. Once that is removed, you can loosen the boots, remove the accelorator cables and unplug the rear brake light at the connector above the carb and you can rotate the carb either way depending on if you need to get to the needle or to the main jet. I can have both the needle and jet changed in about 20 minutes. Of course I was having WAY more than enough practice trying out various main jets and needle settings....LOL.

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 #5 of 12 Old 05-30-2008, 06:09 PM
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Thanks for the data dump! I was about to ask about this very system for my '06. I am hoping to drop a few RPM at 75mph, as I want to drive out to Las Vegas. About 900 miles... maybe I could just take the slow road and go thru Moab.
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post #6 of 12 Old 05-30-2008, 08:17 PM
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Only way to drop some RPM's will be a 16 tooth front sprocket. About 500 less with 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 #7 of 12 Old 05-30-2008, 08:42 PM
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PERFECT!! I just read that soemwhere else! And for just $20, I better add that to the 650.com order. I am guessing that it is a quick swap?

Thanks a ton.. DX!
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post #8 of 12 Old 05-30-2008, 10:00 PM
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Takes you maybe 30 minutes or so. You will have to readjust the chain a lil bit, giving it some more slack as the 16 is a bit larger diameter than the 15 tooth.
The torque setting for the Sprocket nut is 72 ft/lbs. and 69 ft/lbs for the rear axle nut. The new sprocket will come with a spacer, it goes to the back side of the sprocket when installed. Do a visual check of chain alignment to make sure everything is lined up perfectly between rear and front sprockets.

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 #9 of 12 Old 05-31-2008, 12:50 PM Thread Starter
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Dam!!! Ill have to try rotating it... So simple DUH.
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post #10 of 12 Old 08-11-2008, 08:52 PM Thread Starter
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Update ... I tried "Eagle Mike's" settings with the 148 stock main jet and clip on middle position, 2 .5 turns out. they did'nt work out...for me. If you dont think there is much of a permormance loss with those settings, then I'm very suprised! All I have to do is roll on the throttle hard in first gear and you can feel the diff. To me, it's like night and day. The bike basically feels like a stock bike again. Way more sluggish, especially at the mid to high rpms. On the highway it a real dog. I'm Going back to the settings that were recomended with the kit. 150 jet, 4th slot on the needle and 3.5 turns out. If anything, I might see what 3 turns out is like. Ya know its funny, these companys put together these kits to make improvments in the performance of the motorcycle. Im sure they don't pick settings off a board like pin the tail on the donkey, blindfolded..They prob. spend a decent amt. of time and money in research and development of the jet kit, hoping to get optimal performance so they can sell more. My advice, if fuel economy is more important to you than performance then leave the bike stock, don't waste your money on this stuff. It reminds me of my friend who sits next to me in the car while my naviagation system says " get off at exit 35, 1 mile ahead" and my friend says, don't get off there, get off at exit 36, thats the way I always go it's faster!.... That Magellan knows nothing, it's only a stupid nav. system.

Last edited by jusmoov; 08-11-2008 at 08:57 PM.
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