Hi After reading some of the posts I see I am not alone with lost spark syndrome on a Sym Quadlander 250.
Mine has me demented after replacing plug, Coil, CDI, stator. Struggling to find parts suppliers or any technical
support in the UK. Are they only supposed to last 2400km. This quad has forward and reverse light indicators
on the dash. The neutral light comes on and the engine will crank over but no spark after the above changes. When I
move the gear lever back the reverse light comes on but when I move gearlever to forward position the forward light does
not work, all bulbs work. I am beginning to consider the shift gear control unit may be at fault part number 3576 A-RB1-000
is there any way to test this? Is there a way to hotwire the CDI to get it to spark. So many questions not enough answers

 

Hi i have no spark also on my 250 sym quadlander watercooled. im looking for an ignition circuit wiring diagram. Can you help?
thanks Tony

 

Don't know the model at all, but ignition circuits fall into three main patterns for ATVs and the help diagnose stator sticky in the engines section, tells you how to test the AC CDI and DC CDI variants. Most Chinese stuff uses Honda wiring colours so, green = earth, black/white = kill wire, black/red = power feed, blue/yellow = feed from pulse coil. If your CDI colours don't follow those, you have to work out by tracing what colours you have at the CDI against where they come from. The other system is called ignitor by Kawasaki, who used it for some ATVs, along with a few Chinese makers. This follows the old 1980s car system, of a 12v coil and a "black box" converting the signal from the pulse coil to an off/on negative signal to the coil.

 

Yeah . You’re lucky if you get that far with one. They are not meant for full time use. Those machines are literally a novelty toy. The Chinese do not build them with any type of quality or quality control. They sell them because they know there are fools out there that are too cheap to buy an actual ATV from a real manufacturer.