Motion Pro Rev3 Throttle Kit – Kawasaki Ninja 400 / Z400

From: $159.99

***You will need to replace the start/kill switch when you install the Motion Pro Rev3 Race throttle on your Ninja 400 because the OEM start/kill switch is part of the throttle housing.

There are a few options available for this:

The Domino Kawasaki Ninja 400 kill switch is an inexpensive, plug-and-play replacement switch for the Kawasaki Ninja 400.

The Kawasaki Ninja 400 Kill Switch w/ Integrated Keyswitch Elimination Harness is a plug-and-play harness for the Kawasaki Ninja 400 that also bypasses the OEM keyswitch so the heavy keyswitch can be removed.  This is recommended for racers, as it’s a better and cheaper option than purchasing a Kill Switch and Keyswitch Eliminator Harness separately.

*This kit is for closed course use only.

SKU: _000036 Categories: ,


The REV3™ throttle has several different size reels that will change how much twist is necessary for the throttle to completely open the carbs or throttle bodies on a motorcycle. The larger the reel is, the shorter the twist. Each reel size will shorten the twist by about 10 degrees. If your stock throttle has a 40 mm reel and stock twist is 90 degrees (1/4 turn), the 45mm reel will reduce the twist to 80 degrees and the 50 mm reel will reduce it to 70 degrees. The 35 mm reel will increase the throttle twist to approximately 100 degrees. This is just an example; every model of motorcycle is different.

The included cam reel has a progressive profile that allows the throttle to act like a sensitive, long twist throttle during the initial small throttle openings for precise control and then acts like a more aggressive short twist throttle at large throttle openings, progressively shortening the amount of twist needed to reach full throttle.

Installation of this kit requires the Motion Pro Enhanced Right Side Start/Stop Switch (Kawasaki A). From the factory the start/stop switch is built into the OEM throttle housing which is removed from the bike when installing the Motion Pro REV3 Throttle Kit. In our install video for this kit Van installs the Motion Pro Universal Start/Stop Switch because the direct fit version had not been released before we shot the install.

Product Features:

Innovative reel changing system lets you tailor the throttle rate to your preference and riding conditions
5 different reels provide perfect throttle response for any condition. Use smaller reels for slower throttle rate and larger reels for faster throttle rate. Included cam reel provides progressive throttle response preferred by some riders
Slim REV3™ throttle housing allows more room for lever clearance and adjustment to throttle housing position
Improved throttle stop provides greater strength and durability – Snap together elbows makes it even easier to install and change reels
Cable boot keeps dirt and dust out for reliable and smooth operation
REV3™ off-road kits are compatible with the new Motion Pro DirtControl™ V2 Lock-On grips (01-2818 and 01-2819) and ODI Lock-On grips
Billet aluminum inline cable adjusters ease installation and adjustment
Lower section of cables use 5 mm housing with PTFE liner for reduced friction, increased routing flexibility and lighter weight
Upper section of cables use 6 mm housing to provide solid support of adjusters
Simple to install and maintain
Kit Includes:

REV3™ throttle assembly with throttle tube (REV3™ off-road kits include the unbreakable Titan Throttle Tube™)
Motion Pro REV3™ black vinyl cables specifically designed for your bike
REV3™ sportbike kits include Motion Pro RoadControl™ grips (01-1131) and REV3™ off-road kits include Motion Pro DirtControl™ II grips (01-2816)
Four interchangeable round reels: 35mm, 40 mm, 45 mm, 50 mm
Progressive cam reel – Sportbike kits include road race profile cam reel (orange) and off-road kits include off-road profile cam reel (gray)
Rev3 Kits have cables specifically designed for fitment on specific models, but the Rev3 throttle itself is not model specific. Therefore, in some situations, the Rev3 kit may not be a direct bolt on installation due to space limitations on the stock handlebar. In some installations, it may be necessary to move other control components on the stock handlebar, shorten the Rev3 throttle tube and grip, install longer aftermarket handlebars, or possibly all of the above. It is up to the end user to determine the best method for fitment on their motorcycle, and ensure that the Rev3 kit is installed properly and with the correct clearances for safe operation. Installation should be done by a qualified mechanic and carefully checked for proper function. Improper installation could result in great bodily injury or death.

Additional information

Weight 1.75 lbs
Dimensions 14 × 12.5 × 3 in


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