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[Solved] Quad Bashan 250 - No spark, no voltage on the wires from the coil, I am asking f

djspeedii 41724 19
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How do I connect the Bashan 250 engine wiring and diagnose why it has no spark?

The 3 yellow wires are the alternator/stator’s three phases for lighting and battery charging, so they go to the regulator, not to the ignition coil; the ignition system should be a DC-CDI/TCI powered by +12 V after the ignition switch [#16749885][#16751110][#16754015] The red wire from the ignition module should be connected to switched +12 V, and the other wire is for engine stop/kill; the yellow wires are not expected to show spark-related voltage, so a no-spark fault should be traced by checking the pickup/stator and the CDI wiring instead [#16754015][#16753002] In this thread, the spark was finally restored only after replacing the spark unit/ignitor and ignition module, and later the magneto/stator assembly was also replaced while charging issues were handled separately [#16763759][#17481501]
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  • #1 16749870
    djspeedii
    Level 10  
    Posts: 31
    Rate: 23
    Hello,
    I have a very serious problem with the purchased bashan 250 which was in parts separately engine, installation is cut. I've connected everything but I do not have a spark, so the engine does not start.
    I decided to re-connect everything from the beginning, starting with a short starter connection. The starter spins, so I decided to connect the cables coming out of the motor with the module. Five cables come out of the motor: 3 yellows - I suspect that these are coil cables, but why 3 cables and the same color.
    The green and blue cables also come out. The green and blue cable is probably a green pulse to ground and blue to the module (my question if I turn the starter, nothing else is connected only green to ground or if there should be some blue values on the blue cable - I do not have it)
    Returning to 3 yellow cables - trying to determine which cable is from the ignition coil (I turn the starter, no cables are connected only short starter and ground to the housing, or any voltage should appear on any of the cables (the meter does not show anything)

    Is there any possibility that the whole spark is broken, all the coils and the pulse generator? But do I check something? Maybe a weak mass where to give mass.
    Please help
    Thank you and best regards to everyone [/ b]
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  • #2 16749885
    RafalGT2
    Level 24  
    Posts: 712
    Help: 77
    Rate: 223
    it looks like you have DCI ignition, i.e. 3 yellow cables are cables for lights and aku charging, you connect the rest correctly, so you probably need a DC CDi module which must be battery powered and for sure give the resistance of the wires to the magnet then we will make sure the colors someone could change
  • #3 16750097
    djspeedii
    Level 10  
    Posts: 31
    Rate: 23
    I'll give up the wire resistance in the afternoon, when I'm at home.

    The module I have the same as in the picture Quad Bashan 250 - No spark, no voltage on the wires from the coil, I am asking f - now the question is how to check if it is a DC-CDI module.
    I searched google, however, I did not find the answer, the picture that I have the module. They write differently on the Internet regarding modules that sell DC CDI, which looks the same as my other DCs - CDI describe such a gold module.

    Despite ignition of DC CDI or on these 3 wires, I should not have any voltage when shooting the starter, because if it is coils to power the lights and the aku landing, they should generate electricity. Unless I measure them badly. (red from the meter to one of the yellow cable, black from the meter to the battery ground, meter set to V 20). Nothing else is connected, just mass and plus directly on the starter.

    Added after 7 [hours] 43 [minutes]:

    Ignitor resistance, i.e. green and blue wires, 146,3 ?
    In addition, I checked these three yellow wires by connecting to two yellow gauges showing 1.9? (does this value say something?)
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  • #4 16751110
    web69
    Level 33  
    Posts: 2144
    Help: 188
    Rate: 621
    Three yellow cables, alternator 3f. Normal motorcycle solution, the ignition must be TCI or DC CDI.
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  • #5 16751594
    djspeedii
    Level 10  
    Posts: 31
    Rate: 23
    Can you ask for a more accurate explanation of such a connection.
    I did not get any alternator for a quad, and I honestly say I have not seen a quad with an alternator anywhere.
    Is it possible to ask for a link from the store or a DC CDI ignition that will fit.

    Would it not be a simpler solution to buy a new ordinary spark magnet with a coil. In the pile of cables I got is the module mentioned above, and the regulator.
  • #6 16751866
    web69
    Level 33  
    Posts: 2144
    Help: 188
    Rate: 621
    Do not be angry, but you do not understand the simplest issues of building a motorcycle installation ... Each quad has an alternator, 1f or 3f, yours has THREE PHASES. Why do you want to buy a module, did you write that you have one and a regulator?
  • #7 16752120
    djspeedii
    Level 10  
    Posts: 31
    Rate: 23
    I am not angry at all on the contrary, thank you very much for your advice. Unfortunately, the installation from the quad I see for the first time, and that I bought a totally broken machine I have to deal with it somehow (the mistake of buying everything was to only connect the cubes, and everything was cut down, and there are still gaps both in the installation and in general in components) .

    Returning to the topic, I can describe how I connected it according to the schemes from the Internet:
    Quad Bashan 250 - No spark, no voltage on the wires from the coil, I am asking f .

    He would ask for a description of how to connect these 3 yellow cables from the motors and one red from the module, the other free one I know is used for extinguishing.
  • #8 16753002
    RafalGT2
    Level 24  
    Posts: 712
    Help: 77
    Rate: 223
    And we would ask you to measure the resistance to the weight of the wires from the ignition where we have to know if the 3 yellows are original may have other colors without measurements, no one is a fairy and the topic makes senseless
  • #9 16753999
    djspeedii
    Level 10  
    Posts: 31
    Rate: 23
    Resistance on yellow wires 0?
  • #10 16754015
    web69
    Level 33  
    Posts: 2144
    Help: 188
    Rate: 621
    Red from the ignition module to + 12V after the ignition switch (ignition system supply). 3 yellow from the motor connect to the regulator (the regulator should have 5 pins / wires, 3 phases, + and -) What you have already connected is OK. Give the photo of the regulator.
  • #11 16754176
    djspeedii
    Level 10  
    Posts: 31
    Rate: 23
    I connected, as my friend described above, unfortunately, without yellow wires, I have a 4-pin regulator Quad Bashan 250 - No spark, no voltage on the wires from the coil, I am asking f
    (as I understand well without these yellow ones, the engine should also fire), unfortunately I still do not have a spark on the wire that goes from the ignition coil. I will keep the resistances of individual modules in the afternoon and write down their values.

    Returning to the question from the first post, if I shoot a pacemaker or on these 3 yellow wires there should be no voltage which will charge aku and power the lights. The meter indicates 0, i.e. a strator for exchange?
  • #12 16763014
    dakoslav10
    Level 5  
    Posts: 125
    Help: 1
    Rate: 19
    Hello
    I do not know if you have already given advice on this installation, but I have a question whether you downloaded a serviceman, I work with Kymco but I also had problems with electric installation (I was almost dead) and with the help of this service I gave advice, of course a bit it lasted
    greetings
  • #13 16763759
    djspeedii
    Level 10  
    Posts: 31
    Rate: 23
    Unfortunately, I did not give advice, quad went to a repairman, because how much you can tire.
    I had a lot of installation diagrams but none, after using it did not restore the spark.

    The subject closes with the spark found, the purchased new spark ignitor and the ignition module.
    The previous magnet was needed for a constant current, but I decided to change the magnet.
    greetings
  • #14 16804346
    djspeedii
    Level 10  
    Posts: 31
    Rate: 23
    In the quad, all things done, unfortunately I encountered another riddle of not charging.

    A new 8 coil magnetizer was purchased with the capacitor charging coil in the ignition module (red color black)
    Another two yellow and pink wires connected to the regulator, the output current from the regulator in the limits of 12.8 - 13.0 DCV
    Alternating current measured on the charging coils
    measurement of the pink / mass voltage within 5 V ~ at high revolutions gets a value of around 10 V ~
    measurement of the yellow voltage / mass values within 7 V ~ at high revolutions gets a value of around 12 V ~
    charging coil resistance, universal meter set to 200?, yellow to pink wires, value 1.9 - 2 ?.

    The question is whether a new spark magnet and already coils or new ones have been damaged. What do you advise, buy a new one? Is it possible that something might be wrong?

    Thanks in advance for your answer.
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  • #15 16808659
    RafalGT2
    Level 24  
    Posts: 712
    Help: 77
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    Measurement of voltage between yellow and pink may be massless coils.
  • #16 16810401
    djspeedii
    Level 10  
    Posts: 31
    Rate: 23
    Measurement of pink / yellow voltage values within 5 V ~ at high revolutions gets a value of around 10 V ~
  • #17 16811264
    web69
    Level 33  
    Posts: 2144
    Help: 188
    Rate: 621
    With regulator or without?
  • #18 16811638
    djspeedii
    Level 10  
    Posts: 31
    Rate: 23
    web69 wrote:
    With regulator or without?
    - Cables disconnected from the regulator (measured on wires that directly come out of the magneto.
  • #19 16916370
    bashan250michal
    Level 7  
    Posts: 16
    Rate: 14
    how much you paid for a professional
  • #20 17481501
    djspeedii
    Level 10  
    Posts: 31
    Rate: 23
    Replacing the magnet on the new quad fires, while the problem of charging has remained
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Topic summary

✨ The discussion revolves around troubleshooting a Bashan 250 quad that has no spark and no voltage from the ignition coil. The user describes their attempts to reconnect the wiring, identifying three yellow wires suspected to be for the ignition coil, along with green and blue wires for grounding and module connection. Responses suggest that the yellow wires are likely for the alternator and not the ignition. The user is advised to check the resistance of the wires and ensure proper connections to the DC CDI module and regulator. After several attempts and measurements, the user ultimately resolves the spark issue by replacing the ignition module and magneto, although they continue to face challenges with the charging system.
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FAQ

TL;DR: Many Bashan 250 “no spark” cases come down to 3‑phase stator wiring and matching DC‑CDI/TCI ignition; as one expert put it, “Three yellow cables, alternator 3f.” [Elektroda, web69, post #16751110]

Why it matters: This FAQ helps DIY owners quickly restore spark and charging on Bashan 250 quads with cut or unknown wiring.

Quick Facts

How do I wire the three yellow stator wires on a Bashan 250?

Route all three yellow stator wires to the regulator/rectifier’s three AC inputs. Use a 5‑pin unit: three AC, battery +, and ground. This matches the 3‑phase alternator used on many Bashan 250 engines. Incorrect regulators (e.g., 4‑pin) can prevent proper charging and confuse diagnostics. [Elektroda, web69, post #16754015]

Is my Bashan 250 using DC‑CDI, AC‑CDI, or TCI?

Threads identify these engines with a 3‑phase stator as using TCI or DC‑CDI. A DC‑CDI needs battery power to fire. If your CDI requires +12 V on its red lead with key ON, it’s a DC‑CDI. Without that feed, you’ll get no spark even with a good stator. [Elektroda, RafalGT2, post #16749885]

Where does the red wire from the ignition module connect?

Connect the CDI’s red wire to +12 V after the ignition switch. That powers the ignition module. Then connect the three yellow stator leads to the regulator/rectifier, and ensure good ground. “Red from the ignition module to +12V after the ignition switch.” [Elektroda, web69, post #16754015]

How do I test the pickup (pulser) coil on this quad?

Measure resistance between the pickup’s two wires (often green and blue). A user‑reported value was about 146 Ω. Readings far from this can signal a faulty pickup or wiring. Test with the connector unplugged and the meter on the 200/2 kΩ range for accuracy. [Elektroda, djspeedii, post #16750097]

Why do I read 0 V when probing a yellow stator wire to ground while cranking?

Your stator is three‑phase and can be floating from ground. Measure AC voltage between any two yellow wires, not yellow to ground. A three‑phase setup needs a matching regulator/rectifier and correct measurement points to show output. [Elektroda, web69, post #16751110]

Can a 4‑pin regulator work with a three‑yellow‑wire stator?

No. A three‑yellow stator indicates a 3‑phase alternator that needs a regulator with three AC inputs plus battery + and ground (5 pins). Using a 4‑pin unit leaves one phase unconnected and disrupts charging. [Elektroda, web69, post #16754015]

What charging voltages should I expect from the stator with the regulator unplugged?

Measured examples showed about 5–12 VAC between stator leads at varying RPM when disconnected from the regulator. That confirms the stator is producing AC but does not guarantee proper charging without a correct regulator and wiring. [Elektroda, djspeedii, post #16804346]

My quad starts after replacing the magneto/CDI, but it still doesn’t charge—what now?

You may have a mismatch between stator outputs (floating vs grounded coil) and the regulator. One reply notes that measuring between yellow and pink suggests massless (floating) coils; use the correct regulator for that configuration and verify wiring. [Elektroda, RafalGT2, post #16808659]

How do I fix a “no spark” Bashan 250 fast? (3‑step)

  1. Feed +12 V to the CDI red wire with key ON and confirm ground integrity.
  2. Verify pickup coil is ~146 Ω and connected correctly.
  3. Ensure your ignition type (DC‑CDI/TCI) matches the magneto/stator you installed. “DC CDI… must be battery powered.” [Elektroda, RafalGT2, post #16749885]

What does it mean if stator yellow‑to‑yellow resistance reads ~1.9 Ω?

It indicates continuity between stator phase windings, consistent with a healthy 3‑phase coil set. Combine this with AC output checks to confirm operation. If resistance is infinite or a dead short, suspect damage or miswiring. [Elektroda, djspeedii, post #16750097]

Edge case: My yellow wires show 0 Ω—what’s the failure mode?

A 0 Ω reading can indicate shorted turns, short to harness, or using the wrong meter range. Isolate the stator, re‑measure between phases, then compare to typical ~1.9 Ω. If still 0 Ω, replace or rewind the stator. [Elektroda, djspeedii, post #16753999]

Will the engine fire with charging wires disconnected?

Engines using DC‑CDI need a live battery feed to the CDI, regardless of charging wires. If that +12 V feed is missing, you will not get spark, even if the starter cranks. [Elektroda, RafalGT2, post #16749885]

What finally solved the original poster’s no‑spark problem?

They replaced the spark igniter and ignition module, then changed the magnet to suit constant‑current requirements. Afterward, the engine fired normally. Charging issues were handled separately later. [Elektroda, djspeedii, post #16763759]

After magneto replacement my quad runs but charges only ~12.8–13.0 V—normal?

That’s low for many systems at higher RPM, suggesting regulator mismatch, wiring issues, or a stator configuration conflict. Check that your regulator matches the 8‑coil stator and that all three AC inputs are connected. [Elektroda, djspeedii, post #16804346]

What’s the simple rule for identifying the three yellow wires?

“Three yellow cables, alternator 3f.” Treat them as the three AC phases to the regulator/rectifier, not as ignition inputs or grounds. Use a 5‑pin regulator on these setups. [Elektroda, web69, post #16751110]
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