Question about Motorcycles
First thing is to find out if the crankshaft will turn. Remove the spark plug and the roundish cover on the left side of the engine which should expose the ignition assembly. Put a socket on the end of the crankshaft and see if it turns freely. If it doesn't, you have a seized piston or other internal problem.
Posted on Aug 09, 2014
SOURCE: yz 250 wont kickstart
You obviously look after your machine and very sensible when laying up, however as you are probably aware 2 strokes rely heavily on compression, A. to produce excellent combustion and B. to draw fuel into the chamber. So when you try kick starting you can't get enough revolutions to draw the correct amount of fuel into the cylinder, where as you push start you constantly turn over the engine increasing compression slightly and bingo it fires.
Can you remember how when kick starting it before this problem the feel on resistance when kicking over? has it now become a lot easier? if so you possibly have worn or broken compression piston rings.
A compression test will reveal this, I hope this sorts your query?
Press the Blue button please for my FREE effort,
Paul 'W' U.K.
Posted on Feb 06, 2009
If you are saying the starter just spins and doesnt start the engine then your starter bendits has gone bad and is not kicking out to meet the fly wheel. You while have to remove the starter and have it repaired or replaced.
Posted on Dec 12, 2009
check first if spark plug working you can see spark light on it upon kickstart. then proceed with the gas carburetor if gas intake working and not stuck. if no power goes to spark plug trace the source. first the cdi then the ignition coil and the voltage regulator.
Posted on Apr 13, 2010
SOURCE: new stator cover bike wont start
useing a multimeter set to d.c check your charge at the battery whith out the motor running it should read above 12 volts determine the voltage stored in the battery with the meter stil conected hit the start button if the meter shows a dramatic drop in voltage its almost certain that the battery is shot howevwer if the voltage does not drop & it wont start bump start it conect the meter still set on dc increase the revs asyou do this the voltage should climb to 13.50 if it does & maintains 13.50 to 13.65 the chargeing system can be declared ok & you only need replace the battery however if it goes above 14 volts the voltage regulator is faulty & cooking the battery so you will need to replace both
Posted on Apr 14, 2010
Hi there, I have a yz 250 which did the same thing. Would jump start but would not start when kicked over. Test your stator, orthe pick up. Worked for me
Posted on May 27, 2010
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