Question about Yamaha YZ 250 F Motorcycles

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Yz250F has no spark

One day i was riding it my bike just killed off, now i get it home and it has no spark?

i tried 2 plugs and they have no spark.

so its the cdi,magneto,wires how do i check these?

trouble shooting, i got an ohm metter but what settign do i use? and how much should it be, so i know if its bad or good?

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  • Anonymous Mar 17, 2014

    does bike have points or how does get spark when turning over right cdi side has orange/gray/ black only orange wire has fant pulse dont know were to go cchanged pulse coils / coils /got used cdi/ Mabye altenator bad if spark starts ther

  • Anonymous Mar 17, 2014

    does bike have points or how does get spark when turning over right cdi side has orange/gray/ black only orange wire has fant pulse dont know were to go cchanged pulse coils / coils /got used cdi/ Mabye altenator bad if spark starts ther

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Your pickup coil is most likely bad.there are five wires coming out of the left stator side. three yellow or white and the other two are the pickup coil. trace them to the connector under the seat or tank . unplug the connector and check for continuity, if none is there , the pickup coil it is bad. yamaha sells the stator and the pickup coil together. very costly , you can buy the pickup oil off ebay for about $30.00.
becareful as the screws holding the pickup coil in are lock tited in and need to be heated to remove them without damage.

goodluck, edbiggs

Posted on Mar 02, 2009

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