I have just rebuild my 2002 kx250 top and bottom but the mechanic wants me to get the timing degree ? i know it has 3 marks on the stator

Time to go back to basics and ensure the ignition timing is correct. Remove the spark plug and highlight the timing mark or make a mark on the flywheel/rotor that indicates a few degrees BTDC and use a stroboscope to ensure the marks are approximately in line when the kickstarter is operated fairly vigorously.

Could be something has been fitted wrong or has been damaged. The electrics/electronics are fairly complex and I am not familiar with the model. I don't know how the ignition is triggered for instance, but I once encountered a 2-stroke that had seized but refused to start after the rebuild. The engine had stopped so suddenly the flywheel (rotor) had kept going for a very small amount of time and had become twisted so the relationship between the hub/crankshaft keyway and spark timing had been lost. A replacement flywheel was fitted and it started first kick...

remove the distributor and turn rotor arm back a bit as its on a screw gear at the bottom ,or remove the plug leads and move them all around one outlet backwards or forewards as the case may be ,old school mechanics this when i sat my exams they gave me all the parts of the distributor and the timing gears with no marks and i had to rebuild and start engine with a starting handle ,showing my age here i think -cars with points and timing chains

TAKE TOP SIDE COVER OFF ,TOP MARK ON GEAR SHOULD BE AT 12:OO THERE IS A GROVE IN HEAD ABOVE TOP GEAR

Sounds like the timing is off or something wasn't synch'd up correctly during the rebuild. Check the timing and make sure the vacuum lines are connected correctly, especially the vacuum advance which advances your timing when the engine RPM's are increased. Start your timing at 5 degrees before top dead center, the 5 mark on your timing marks, this is the most common baseline setting for timing. If you have to set it advanced beyond 10 degree or retarded beyond 0 then your timing chain was not aligned correctly between the Pistons and the Valves or cam shaft.

theres 3 sprokets stacked verticaly correct? the bottom shaft keyway should point straight up. the 2nd shaft keyway should point straight down. finally the top gear keyway should be pointing straight up. alittle mark on the gear teeth should match a mark on the lower gear teeth.

The firing order is 1-5-4-8-6-3-7-2, distributor turns counter-clockwise. The ignition timing can be set using marks on the vibration damper. The wide mark is TDC (Top Dead Center), each mark after the wide mark represents 2, 4, 6, 8 and 10 degrees before TDC. Set timing 3 degrees BTDC (Before Top Dead Center). In addition, valve timingis set like this: Intake opens: 12 degrees BTDC
Exhaust Closes: 8 degrees ATDC

i have a 96 xh ford falcon 4.0 ute.I am rebuilding the engine and delated the pic i had of the timing set up . I am after a pic or a site that i can see where the timing marks should be. I know that the crank of cause is tdc.(key is on top) cam marker is at 3 o'clock (90 degrees from top). Where does the dizzy gear timing mark point to?

If it is the 2.5 EJ25 motor the marks ar on the cover and pulleys. Top pulleys are Single line straight up and double straight down which should line up with bottom pulleys double marks. This should line up the single lines on bottom pulleys with 90 degree mark on outer cover both sides.The center pulley for crank should be straight up with notch in block.