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      • Do you need a fuel controller with full exhaust ninja 400 Do you need a Power Commander for full exhaust on the Kawasaki Ninja 400?
      • featured image How to install an R6 throttle tube in the Kawasaki Ninja 400 / Z400
      • 49899087_301487663905591_4918556926305894400_n How to remove the front fender and rear fender of the Kawasaki Ninja 400
      • 2019-02-07 10_57_46-Clipboard How to remove the gas tank on the Kawasaki Ninja 400
      • IMG_4330_2 How to remove the OEM bodywork of the Kawasaki Ninja 400
      • open clutch Kawasaki Ninja 400 / Z400 Clutch Slipping, Poor Shifting, False Neutrals, and Dropping Gears – Explained and Fixed!
      • Kawasaki Ninja 400 dyno horsepower Kawasaki Ninja 400 Exhaust Dyno Shootout!
      • CVR_3132_Sep1519_CaliPhoto Ninja 400 Electronics and GP Bodywork Test
      • Traxxion Dynamics Omni Fork Spring Kit Yamaha R3 2015-2018 Suspension Spring Rate Chart for Kawasaki Ninja 400 / Z400
      • Braketech Vs Galfer Rotor Brake Test Rocco Landers What’s up with the Kawasaki Ninja 400 / Z400 brakes?
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      • DSCN2608_zpsqza81eb3 How to do an oil and filter change on the Yamaha R3 / MT-03August 16, 2015
      • IMG_3857 How to get more dash clearance for your clipons and brake line – Yamaha R3August 28, 2015
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      • IMG_4463 Paint is done, heading to 5zero4 Designs next weekend to install the graphicsDecember 14, 2015
      • Traxxion Dynamics Omni Fork Spring Kit Yamaha R3 2015-2018 Suspension Spring Rate Chart for Yamaha R3 / MT-03January 24, 2021
      • Yamaha R3 Woodcraft 1.5 rise clipons What are the best clipons for the Yamaha R3?March 24, 2016
      • yamahaR3_raceconcept_rearsets_gold_fitR1 What are the best rearsets for the Yamaha R3?March 26, 2016
      • Yamaha R3 Exhaust Test Superbike Dyno horsepower Norton Motorsports Yamaha R3 / MT03 Exhaust Dyno Test and Superbike BuildJune 6, 2019
      • 2015 yamaha r3 exhaust header muffler weight Yamaha R3 OEM exhaust weight, headers, muffler, slip-on, heat shieldJuly 3, 2015
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      • Do you need a fuel controller with full exhaust ninja 400 Do you need a Power Commander for full exhaust on the Kawasaki Ninja 400?September 2, 2019
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What’s up with the Kawasaki Ninja 400 / Z400 brakes?

2021, February 25 by Norton Racing
Braketech Vs Galfer Rotor Brake Test Rocco Landers
The Ninja 400 / Z400 have decent enough brakes for street use, with their 310mm floating front disc.  It’s larger in diameter than similar bikes like the Yamaha R3 (298mm).  The OEM pads have what seems to be the standard “OEM feel” for budget oriented bike, very wooden, lacking any substantial bite, and requiring a
Read more
  • Published in Kawasaki Ninja 400 / Z400
No Comments

** Kawasaki Ninja 400 / Z400 Critical Issues

2021, February 24 by Norton Racing
The Kawasaki Ninja 400 and Z400 are awesome little bikes!  Kawasaki made some advancements to the little bike scene offering a 400cc package that was just as lightweight (or lighter) and nimble as other 250cc and 300cc bikes.  But like with anything that’s a brand new design, there are a few quirks that should be
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  • Published in Kawasaki Ninja 400 / Z400
No Comments

Suspension Spring Rate Chart for Kawasaki Ninja 400 / Z400

2021, January 24 by Norton Racing
Traxxion Dynamics Omni Fork Spring Kit Yamaha R3 2015-2018
*Keep in mind, these are only general recommendations for spring rates to get you close for your weight. Optimum spring rate is affected by countless variables including riding style, preference, pace, track layout and surface finish, and bike geometry and suspension setup.  Generally faster racers will prefer springs at the stiffer end of their range.
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  • Published in Kawasaki Ninja 400 / Z400
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*** Top 5 Kawasaki Ninja 400 / Z400 Mods and Upgrades

2021, January 24 by Norton Racing
coming soon.
Read more
  • Published in Kawasaki Ninja 400 / Z400
1 Comment

Kawasaki Ninja 400 / Z400 Clutch Slipping, Poor Shifting, False Neutrals, and Dropping Gears – Explained and Fixed!

2019, December 02 by Norton Racing
The Ninja 400 / Z400 is an awesome little bike with a fantastic engine. But it is no secret by now that the Kawasaki Ninja 400 / Z400 has some issues with the clutch and shifting. No matter how many Kawi dealers tell you it’s normal for your clutch to slip on a bike with
Read more
  • Published in Kawasaki Ninja 400 / Z400
12 Comments

How to install an R6 throttle tube in the Kawasaki Ninja 400 / Z400

2019, November 07 by Norton Racing
Like all stock bikes, the throttle throw on the Kawasaki Ninja 400 is painfully long, and requires twisting your arm to awkward angles to reach full throttle without re-gripping the throttle. Not only is this a nuisance, but it’s dangerously distracting while trying to ride. A quick and inexpensive way to shorten the throttle throw
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  • Published in Kawasaki Ninja 400 / Z400
2 Comments

Ninja 400 Electronics and GP Bodywork Test

2019, September 19 by Norton Racing
I also needed to deliver a Yamaha R3 superbike to one of my friends and customers, Trisin Harris, for his first ride and put some laps on my own R3 superbike to dial in my new Penske shock. Tristin and our friend Alex getting ready, also last minute, of course! Also got to see a
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  • Published in Kawasaki Ninja 400 / Z400
2 Comments

Do you need a Power Commander for full exhaust on the Kawasaki Ninja 400?

2019, September 02 by Norton Racing
Do you need a fuel controller with full exhaust ninja 400
A lot of people ask about slip-on exhaust vs full exhaust, and whether or not you need a fuel controller (power commander, bazzaz, ECU flash) when you install a slipon or full system exhaust. So let’s cover that with some real data. Different bikes vary a bit because of where the stock restriction, muffler, and
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  • Published in Kawasaki Ninja 400 / Z400 Dyno Testing
8 Comments

Kawasaki Ninja 400 Exhaust Dyno Shootout!

2019, September 02 by Norton Racing
Kawasaki Ninja 400 dyno horsepower
***This is important, please don’t skip over this: Before I just post a bunch of graphs of dyno runs, I want to explain a few things.  Dyno charts can be very misleading without some back story and more complete information.  First of all, dyno charts are generally only printed for the results at 100% throttle.
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  • Published in Kawasaki Ninja 400 / Z400 Dyno Testing
5 Comments

How to remove the gas tank on the Kawasaki Ninja 400

2019, February 07 by Norton Racing
***BE VERY CAREFUL REMOVING THE GAS TANK!!!!******THE FUEL PIPE ON THE THROTTLE BODIES IS VERY FRAGILE AND EASY TO BREAK AND THE FUEL HOSE IS VERY SHORT!!! Tools Required:10mm socketsmall pick tool to release wire connectors*I recommend having a buddy help you hold the fuel tank as you remove it the first time so you
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  • Published in Kawasaki Ninja 400 / Z400
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Search All Posts

Post Category:

Kawasaki Ninja 400 / Z400
  • ** Kawasaki Ninja 400 / Z400 Critical Issues
  • *** Top 5 Kawasaki Ninja 400 / Z400 Mods and Upgrades
  • Do you need a Power Commander for full exhaust on the Kawasaki Ninja 400?
  • How to install an R6 throttle tube in the Kawasaki Ninja 400 / Z400
  • How to remove the front fender and rear fender of the Kawasaki Ninja 400
  • How to remove the gas tank on the Kawasaki Ninja 400
  • How to remove the OEM bodywork of the Kawasaki Ninja 400
  • Kawasaki Ninja 400 / Z400 Clutch Slipping, Poor Shifting, False Neutrals, and Dropping Gears – Explained and Fixed!
  • Kawasaki Ninja 400 Exhaust Dyno Shootout!
  • Ninja 400 Electronics and GP Bodywork Test
  • Suspension Spring Rate Chart for Kawasaki Ninja 400 / Z400
  • What’s up with the Kawasaki Ninja 400 / Z400 brakes?

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