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Hisun 700 no spark wiring diagram needed


erk mann

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Bike was flooded in tropical storm.  Replaced ecu and coil. Motor turns over but no spark have 12volts on one wire of coil. How much voltage should be on other small wire? Crank position sensor is about 200ohms. . Cleaned plug with sandpaper. Want a wiring diagram to check voltage at ecu. I have update. The blue wire going to coil has no voltage when turning it over. The white with black stripe has 12vdc when key is turned to on position.also, how do I clean the connectors on ecu? I dont see how I can get a  screwdriver in there  to release them. Found a schematic.i still need to clean connectors though

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Edited by erk mann
Update my troubleshooting
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  • 11 months later...

did you ever solve this problem?  I have one doing the exact same thing.  W/Bl wire 14 volts, B/BL nothing.  Have replaced all that plus the stator, regulator but still not getting a spark.  It almost acts like a safety switch is engaged.

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  • 2 months later...
  • 4 weeks later...

I am having the exact same issue with my 2021. no spark and the fuel pump is not priming. if i ground the fuel pump it comes on and i'm reading the same things you are at the coil pretty much. been racking my brain for three days now.   A couple of things for you to check. the purple wire on the ecu black plug pin #18, it should have 12v at all times as it is a memory. i g;uess that is a common problem with that wire losing connection. Wire #15 w/b should have 12v when ignition is on. Also, there is a 9pin connector around that area that the purple wire goes to, it is prone to corosion. Unfortunately, everything i've told you did not work for me. If you want to check to make sure your fuel pump is working, you can ground the r/l wire while it is plugged into the fuel pump, it is the ground provided by cdi ~ relay.

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