2005 people 50 2 stroke. Why won't it start?

It could be the stator assembly or the coil leading to the spark-plug.

The blue with white stripe will go from stator to cdi box. Then black with yellow stripe goes from cdi box to coil will give you spark. If u have no spark and u u haven't changed cdi box or checked coil I'm going to bet that's ur problem. Hope this helps.

coil, stator, or wire to ground and to kill switch, it is grounding out somewhere - remove from coil to test.that.
Get inline spark tester at princess auto cheapie 6.00 can, or 10 for a good one. spark plug, timing, head gasket burn valve, hard to tell without compression test. if low put cap of oil in cylinder and if goes up is rings, if stays low (under 50lbs should be 90.) if stays low is a valve or head-gasket.
Check plug if dry when trying to start vehicle with choke on then remove spark plug and inspect it.
is carb or fuel problem if dry, is electrical if wet!
check fuses, and stuff and wires but probably a CDI unit to control the spark, or if old is a set of points and condensor and the spark must be triggered by a CDI, a lobe, or a coil CDI unit combo.
The coils on stator send 12 volt, coil to sparkplug send 20,000 volt and the gap in points or ruluctors should be set properly, typically stator to reluctor is set by a book of matches not folded but put piece carboard in between,spark plug gap say double that..
I suspect without more input fuel or spark. if the engine wont turn over the fuel to oil mixture wasnt enough, or the oil injector for fuel mixture if two stroke maybe clogged and may destroy your engine.
I don't suspect this but giving things to consider later.
Some bikes there is wires in a rubber plug as a chaijn indicator and the chain can break this connection, not sure about 4x4 though.
:)

Start with new plug ., then work your way to stator ., so plug., plug wire ,.coil.,, cdi ., stator.,., easy to test all them and chase your faulty part

Hi mate the cdi if failed you would have no spark period. I strongly recommend re checking stator when spark comes in and out or dies when hot or will only jump start these are all classic stator issues. simple test just need multimeter and read OHMS from the connecting plug of the stator... one of the pairs of wires will read sky high or zero... I don't know exact reading for your model but kwaka will tell you but a dodgy stator will generally read zero on one or more of the pairs of wires cheers mate hope it helps

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Check the wiring on the connector plugs make sure all the wires are the same color on both sides, red to red blue to blue and so on. I had the same problem After replacing a stator and just plugging it in,after two weeks a new cdi and coil i noticed there were two wires transposed.

Hey Roland,
I have the same problem. How did you fix this problem? Was it the Ignitor or the Rectifier? Please let me know. Thanks.

It's a grounding problem

My problem started like this,I found No spark so changed coil,cdi,voltage reg,eventualy found stator at fault,check pick up strip on flywheel and pick up pin on black pick up coil,this is fixed to stator and sends spark signal to cdi,mine were both rusty/dirty,I fitted a new stator,but now have light problems..stator seems to be to strong.

The Voltage From The Stator To The CDI Should Be Around 40 Volts(AC) At Cranking Speed. Be Sure Your Meter Is Set For (AC) Not (DC). The CDI Changes The (AC) Input Voltage To (DC) Output Voltage To The Primary Terminal At The Coil. An Electrical Shock Hazard Exist If Stator Voltage Is Checked With Engine Running. Always Perform This Test At Cranking Speed (R.P.M.) For SAFETY. 120 Volts (AC) Can Be Present With Engine Running.