No spark, continued

[ScottCarl]

So, on my 84 TRX200, I've replaced everything except the stator and regulator. New coil, cdi unit, (spark pickup tests good) new sparkplug. No spark. Ohm tested stator on the bench. Book said 0.1 - 1 ohm. I have 3 - 4 ohms. Bad? 

Wiring had been boogered up when we got it. (Key switch bypass) Not sure if related but wiring diagram shows a blue and yellow wire from CDI to the spark pick-up (pulse generator) Not sure what was hooked up there, but CDI unit plug didn't look like a blue and yellow wire was EVER plugged in there. It has one now

I had it running for a few seconds, and then it quit. Been searching for spark ever since. 

Help. TIA, Scott! 

 

 

 

[ITWarrior]

The stator is the only thing you haven't replaced yet, and the resistance is out of spec.

I think you just answered your own question 😃

[pikachu78]

I had unreliable spark on a honda cr250 dirtbike (i think the stator might be it but i'm not too sure) (sometimes the spark would be bright and then nothing for 2 kickstarts) very sporadic and dissapearing spark

[ScottCarl]

I put a new (to me) stator in. Still nothing. Went so far as buying another wire harness. Still, nothing. Spark generator tests good, but it's the only thing I haven't replaced. I have a new one enroute. 

[pikachu78]

You know the electrical wiring plugs/plug ins attached to all the dfferent rnadom bunch of wires (the ones i have seen look like a copper tube covered in soft bendy plastic plugs that are at the ends of the wires? 

Maybe one of them has corrosion or a loose connection and things only work if the bike wiggled a certain way or something

[pikachu78]

Oh i forgot you typed that you ordered a new wiring harness. So that should means the wires should be in new condition so no corrosion / maybe one of them is loose but probably not // tomorrow i will hear the results from my dad about the cr250 honda dirtbike strange spark plug behavior and maybe it will be some sort of clue// it is stator/cdi box/ wiring harness sort of problem too

 

[ScottCarl]

No, really. It's is the only thing left. 🤣😂🤣 New wiring harness, new CDI unit, new coil, new plug.

15 hours ago, pikachu78 said:

Oh i forgot you typed that you ordered a new wiring harness. So that should means the wires should be in new condition so no corrosion / maybe one of them is loose but probably not // tomorrow i will hear the results from my dad about the cr250 honda dirtbike strange spark plug behavior and maybe it will be some sort of clue// it is stator/cdi box/ wiring harness sort of problem too

 

To be honest, it's a used item but intact. The one we replaced had splices on splices. It was a mess when we first got it 

[pikachu78]

i had to take the day off work so i will find out the results on Tuesday about the Honda cr250 dirt bike //Coil/stator/wiring harness/ cdi box        the problem is sporadic spark plug behavior ( we turned off all the lights in the garage so it was very dark) he kicked the kick starter about six times and i observed the sparks from the spark plugs.

1st time - low ish medium spark 

2nd time - no spark 

3rd time - no spark

4rth time - very faint spark

5th time - big medium big bright spark

6th time - very faint spark

 

The customer guy gave my dad two different CDI boxes and some other stuff (we tried a whole bunch of things and cannot figure it out). We are guessing both CDI boxes are bad so the Honda cr250 owner guy tracked down a 3rd CDI box// the whole situation is confusing

[pikachu78]

So the guy ordered in 4 or 5 new replacement electrical parts. I think it is new CDI box, new coil, new stator, wiring harness and maybe something else too

( previously we tried everything and could not figure it out but then 'guess hypothesized that both CDI boxes the guy gave us were fucky)    //     We have no idea what is wrong (dad says maybe some switch inside of both of the CDI boxes the guy gave us is fucky)   

I don't know the status of the weird spark plug behavior because my dad said something about the fly-wheel and he had to order in some special part in do do something with it.