Top 20 1994 kawasaki ZZR 400 Questions & Answers

plugs may be fouled or choke is not working

maybe fuel is too lean

sitting is the worst thing for a bike. you have a bad battery. if you have to leave the bike for a long time, put it on a battery tender or at least start it up once a week. the gas will go bad in the fuel system and the battery will fail. also, when you get a battery, make sure to get a good one from the dealer, dont get the cheap ones from walmart or autozone. a factory battery will last 2-5 years. you will be lucky to get 1 year from a cheap battery.

it could be a heat related intermittent problem in the ignition coil

Stock plug is NGK CR9E, but Denso Irridium IU27 is best. Cost more but better economy and starting.
Any manufacturer will have the equivalent NGK plug for your bike on their chart, with two or three types for your preferred riding style.
Cheers.

fuel problem make sure that the fuel line is not blocked or restricted check all hoses on the tank

I would not buy one. It is a water cooled 4 stroke. That part is okay. What is not okay is the fact it has 4 cylinders and is 16 years old. Parts are getting hard to find, dealers generally will not work on a bike more than 10 years old, and because of having 4 cylinders, repairs are EXTREMELY EXPENSIVE. $1200 for a top end job and $1500 for the gearbox. One crummy bent shift fork and you will need to go to the bank. The bike is old enough to be well ready for repairs. Find a 500cc twin cylinder bike 3 to 5 years old and you will save a bunch of cash and still have a rocket. Even if the bike were new I would not buy it due to the 4 cylinders. Please rate my answer. Thanks.

Use the choke on cold starts. There should be no need for throttle.

check the gap on the plugs bud to eliminate that

spary wd-40 on all electrical connection that was expossed to water liberally.....if that doesnt do it, then you probably got water in your pulse generator system coils and will have to pull the cover off and see if theres water in there.

Hi and welcome to FixYa,

Initially, check, clean, bypass or replace the sidestand switch.

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Good luck and thank you for asking FixYa.

that box is called the air box, its where you engine breathes in its air. you say its leaking oil? these boxes are normally a bit oily but only really surface oil. If you can actually see liquid oil you have a problem with your petrol shut off. When the bike isnt running petrol will leak into the engine through the piston. When you start the bike all the petrol mixed with the engine oil will be pumped back into the air box. also check the level of the engine oil, if too much has been put in there then that can also be pumped back into the air box. If the petrol and oil has been mixing you must change the oil as petrol thins the oil and your bike could catch fire, the engine wear will be really bad.

try cleaning your carbs

check your fuel system

Its Starter relay may be causing main problem. You can try Yezdis starter relay as it can help you solving your problem

I've had the same problem a couple of times now The fly wheel is located using a 3mm key
which is way to small that shears off putting the timing out causing back firing and not starting.
Mine did it again last weekend so i'm on the search to cure it once and forall.

It is better to replace it with a performance version. K&N filters sells them on-line and you will be very pleased with the results. Changing your spark plugs to Denso Iridiums will also provide a little power boost (HP up) and improve fuel economy.

does the engine turn over but not start or does it not turn over at all

you should have a header tank some where on the bike you fill this to add water to the rad.