My Lakota 300 cranks but won’t start completely, but if I keep starting over and over it will just all at once start up with no problem. It’s not fuel or plug, but it starts very easily for the rest of the day after getting it started the first time, what’s the problem? Rectifier or cdi box

 

Can be all sorts of things, I have a Grizzly with a similar problem at the moment, except it won't start at all when hot. Anyway, check compression, less than 90psi and a quad will be bad to start, can just be valve clearances, can be time for a top end rebuild. Fit a new plug if you haven't already, and check the choke is working properly. Some bikes, especially DC ignition ones, will only start once you take your finger off the button, never found out why, is your bike doing this? They always spark better on the pull start than the electric starter. Rectifiers are easy to check, start up, put a voltmeter across the battery, rev up slowly, if the voltage never gets over 13v you have a rectifier or alternator problem, if it goes over 14.5v you have a faulty rectifier. Over 15v and you should change it. CDIs can't usually be checked, you check all the other components, however the Lakota's can, but needs a special tester from Kawasaki, dealers will have it. You can check trigger coil resistance (390 to 590 ohms), check pos and neg wires to CDI are giving a full 12v to it,etc.

 

Thanks for your help, I'll check all of that