Why my kawasaki zzr600 can not star when weather is cold?

Many motorcycles simply will not run or start well in cold weather. The engine is tuned for warm weather summer riding. Just the nature of the beast.

My V-Twin cruiser is very difficult to start when the temperature is below 45F. Below 40F it is next to impossible to start. Once it finally starts it runs like crap for several minutes until the engine is nearly completely up to operating temperature.

However this is not an issue for me. Where I live we get long harsh winters with lots of snow. You won't see the pavement on the side streets until mid March to mid April. It is also a pretty safe bet that most of the intersections on the side streets will be icy. For these reasons my bike gets picked and packed away in early November and I won't even think about taking it out of storage until late March or early April.

Another thing to consider is the condition of your battery. It is not unusual for a motorcycle battery to last only a few years, especially if the bike is used in extreme warm or cold temperatures. And the colder a battery is, the less cranking power it will have.

Also, with a new motorcycle battery the very first charge is critical. Many dealers will simply add the acid to the battery and send you out the door. Be battery may only have a 75% charge at this point. If the battery is immediately placed into service without being fully charged first, it may never reach a full charge.

If you get a new battery you should fully charge it before use. Never charge at a rate above 2 amps. One of the new fully automatic battery chargers works best. These won't over charge a battery.

You should also periodically check the acid level in the battery. It is usually best to remove the battery for this. There will be high and low marks on the battery. They should always be near the high mark. Use distilled water only if it is low. Tap water contains chemicals and minerals that will shorten battery life.

When connecting the battery I always use a small dab of dielectric grease on the battery terminals. This helps make a good connection and avoids corrosion.

If its cold out make a habit of putting the battery on a battery maintainer, this keeps the battery charged for those cold days. But you might want to have it checked as some batteries only last a couple years.

That's normal for some bikes. My bike also had the same problem. Use the choke, it will be easier to starts. After the engine warms up and you're ready to run.