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b_king
Oakville, Ont
Canada
4379 Posts |
Topic started on 02/21/2009 at 07:48:16 AM
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I had the opportunity to ride the 09 KX450F this past monday on the ice. This bike currently belongs to my boss, he is using for his short track and TT races this season. Currently it is setup for motox with slightly lowered revalved suspension, minor head work and a full Supertrapp exhaust. I'd have to say this bike is phenomenal. In cold temperatures, it fires right up. The new decompressor system on the exhaust cam works excellent providing effortless kickstarting. It truly is a one kick bike, hot or cold. In terms of power, this bike is nothing short of balls out. It has around 56 HP in stock form, so I'm guesstimating around 58-59 as it is now with the minor tuning. The power is so smooth though. The typical hard burp when you gas 450 is gone. Don't get me wrong, it is stronger, but the power is much more linear because the torque is line is smoothed as well. You can also gear this bike one gear too high and it'll still pull. Smooth tractable power, yet stronger than ever. I am very impressed with it's riding characteristics and am looking forward to owning it at the end of this season. Here are a couple pics.
Me:   
My Boss:  
This was my second time riding on the ice. My boss is a pro Flattrack racer, has been for 25 years. Also, a motorcycle mechanic for 35 years. |
2008 KLX450F - KX450F Airbox, Rear Fender, KTM Battery Tray, Cycra Hanguards, Fastway Disc Guard, Regina Z-Ring Chain, TAG Black T2 Kit, Renthal Grips, Billet Oil Filler, Twin Air Filter, Polisport LED Taillight, Enduro Engineering Plate Holder, Boyesen Quickshot 2, Scotts Mixture Screw, JD Kit, Leo Vince X3 System, Street Legal, Race Tech Suspension
CMA #788 Novice B Harescrambles |
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ThumperTDC
Thumpalicious
USA
6322 Posts |
Posted on 02/21/2009 at 08:43:19 AM
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| Has your boss messed with the Fuel mappingat all on the bike? I watched a video a while back with a team mechanic having the bike hooked up to a lap top playing with the different settings. |
 Bikes can be modified but only one can be Thumpified, Nicely Thumpified 98 XR450 - This is how I roll in OR & in ID
In loving memory of my son Nicolas "Cole" Allen Carter 10/5/2005
I donated to the support of 4Strokes.com |
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b_king
Oakville, Ont
Canada
4379 Posts |
Posted on 02/21/2009 at 7:42:56 PM
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| He has the tuning guide for it, but to put it lightly, he's not very computer savvy. I imagine I'll be called up to try and figure things out. It is somewhat adaptive as all EFI systems are, he's more focused on the engine side of things right now. Surprisingly though, considering his reluctance to use an EFI bike he and I are both very pleased with the results so far. |
2008 KLX450F - KX450F Airbox, Rear Fender, KTM Battery Tray, Cycra Hanguards, Fastway Disc Guard, Regina Z-Ring Chain, TAG Black T2 Kit, Renthal Grips, Billet Oil Filler, Twin Air Filter, Polisport LED Taillight, Enduro Engineering Plate Holder, Boyesen Quickshot 2, Scotts Mixture Screw, JD Kit, Leo Vince X3 System, Street Legal, Race Tech Suspension
CMA #788 Novice B Harescrambles |
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b_king
Oakville, Ont
Canada
4379 Posts |
Posted on 04/09/2009 at 5:34:19 PM
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| So far, the rev limiter can not be adjusted which is a bit of an issue. There is the capability to use the present engine maps, but also the ability to create a completely customized map. This would most definitely require extensive use of a dyno and track time to test all the results. Also, the display shows the throttle opening in a percentage which is cool so you know which area of throttle opening you need to adjust if you notice lean or flat spots in a dyno graph. The throttle opening percentage correlates with the rpm range. Also, you can program a separate map for each gear allowing different maps to be used for a gear say primarily used for starting and once off the line will not return to that gear until the next race. |
2008 KLX450F - KX450F Airbox, Rear Fender, KTM Battery Tray, Cycra Hanguards, Fastway Disc Guard, Regina Z-Ring Chain, TAG Black T2 Kit, Renthal Grips, Billet Oil Filler, Twin Air Filter, Polisport LED Taillight, Enduro Engineering Plate Holder, Boyesen Quickshot 2, Scotts Mixture Screw, JD Kit, Leo Vince X3 System, Street Legal, Race Tech Suspension
CMA #788 Novice B Harescrambles |
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2009 KX450F - First Ride on the ice
