Kazuma 90 cc quad will not start with a new starter installed. Engine can be cranked easily. When start button is pressed it only clicks.

Normally, that clicking sound coming from your starter, because your battery don't have the charge to turn the starter over. The clicking sound your hearing happens every time you start it, just usually goes unnoticed because the starter itself is louder. The clicking sound is the solenoid engaging, which is a good thing. But otherwise if you have already tried jumping it(I mean jump it your battery could be bad) you may just have a loss wire, bad starter, or a bad battery. I have got Brand New Starters that where bad, it don't happen often but it does happen.

But odds are, your battery is dead or bad

Good luck! Hope this helps!!!

what you do to find it is remove the spark plug and put your finger over the hole. slowly turn the engine over until you feel the air blowing past your finger. Then look in the hole, you will see the piston coming to top dead center.

at your local Kazuma dealer

I am not familiar with wires on the starter

Sounds like you need to replace the carb reed. you will know by checking if there is air blowing out of the carb when you crank it over. There should be nothing coming back out. if this is not the case you need to replace the piston rings.

If it started yesterday you might have fouled the spark plug or check crank case, air intake system, and exaust pipe for dirt dobber nests if both have sat up for some time I had this problem when I bought one of the same 4wheelers what happens is the crank case builds pressure also the exaust builds pressure and will not let the motor run check for ignition spark parts are vary cheap for the pocket minies check ebay i got a exaust pipe for 13 dollers 49cc also check motosports max.com or type Kazuma.com in your search bar

I had the same problem. My positive wire would arc with the key off when connecting the battery showing a short somewhere. I disconnected the regulator/ rectifier, (where the #16 positive lead from the battery goes to), and it quit. I found a new one on e-bay for $9.90 after shipping and it corrected the problem. Check to make sure your positive is not arcing with the key off. Hope this helps.

Three causes:

1: Dirty battery terminals

2: Battery is flat or dying

3: The starter motor is dead and all that is happening is the solenoid is clicking in and out

The lower of the 2 screws is the fuel/ air mixture- the upper screw is the idle adjust screw

have you tried a new spark plug???? try new sparkplug there may be a spark on the old one but it may not be strong enought, if that dont work you know its petrol problem!