Question about 1998 kawasaki ZRX 400

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How do you de-restrict a zrx 400 grey import will only do 100mph flat out.

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If the bike came from the UK usually all they have something (screw) that limits the throttle from being opened all the way, I would look down by where your cables hook up and you'll likely find something there.

Posted on May 03, 2010

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Dakota Johnson and Jamie Dornan are the two important characters that have worked on 50 Shades on Grey. You can also get some more information on the movie from 50 nuances de grey 2.

Apr 26, 2017 | The Computers & Internet

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I would like a method to de-restrict the mufflers for 'some' more exhaust noise. any re-jetting advice would be appreciated. thanx

Removing the baffles will do that but the engine will require retiming. I would purchase some Screaming Eagles or some such slash cut pipes.
Check out ebay for ideas.

Feb 26, 2011 | 2006 kawasaki W 400

1 Answer

What the best way to start a 2005 kfx 400 when it cold put it on prime

Kawasaki's do not have a choke, they have an enrichener to allow more gas to flow through the throttle body. Cold temps make for a balky starting bike, I have one! Try a small amount of dry gas in the tank, stay away from starting fluids. Use fresh gas and premium is worse in winter. And I'm not making a pitch but some gasolines are not very good. Use Shell or Sunoco!

Feb 13, 2010 | 2005 kawasaki ZRX 400

2 Answers

Zxr 400 not running properly after being de-restricted

Did you reconnect the vaccum hose on the right hand side of the airbox? As this needs to be reconnected.
Also on some models the two holes on top of the airbox that give you acccess to the 10mm bolts need to be taped over.
The muffled noise you refer to usually happens sometime after 7-9k rpm if the the above 2 suggestions are not actioned

Feb 08, 2010 | 1993 kawasaki ZXR 400

1 Answer

2001 kawasaki lakot sport 300 klein carb. runs at idle when u hit the gas it boggs down carb has been cleaned all jets ect... sat for 2 years with old gas in it this is not the zrx 400 they didnt have an...

Hi and welcome to FixYa,

If the carb has been cleaned, fresh gas and the engine idles good, possibilities are:
  • fuel starvation - when throttled up. Determine if there is sufficient fuel in the bowl of the carb. Loosen the drain screw and note quantity and quality of fuel;
  • too much air - is the original air filter and enclosure installed? If yes, check for air leaks. The lower the bog down RPM, the bigger the leak;
  • too little fuel - if the needle has notches, adjust the e-clip lower; if none, insert small thin washers after the lock (0.5mm).
The bogging down would also happen if aftermarket open breather air cleaner is used. Install back the original airbox/filter.

Good luck and thank you for asking FixYa.

Oct 24, 2009 | 2001 kawasaki ZRX 400

1 Answer

No power in my bike

Try refittin the old cdi box. If it works then the new cdi box may be dead.

Apr 15, 2009 | 1993 kawasaki ZXR 400

1 Answer

Don't know how to check the timting on my ZRX

The ZRX has CDI ignition. The CDI ignition timing is fixed and can not be changed. A "tuneup" means you change the oil and oil filter, install new spark plugs and new air cleaner, lubricate the cables and chain, adjust your mirrors and then wash the bike. That's it!

Please rate this answer. Thanks dlowery651!

Apr 06, 2009 | 2000 kawasaki ZRX 1100

1 Answer

Rs 125 wont redline.....please help!!! PLEASE.

there's a rev limiter . Im not sure of your bike model but a simple google might help.

Mar 13, 2009 | 2008 Aprilia RS 125

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