Another 610 with no spark!

[runar500]

I have a 1995 (?) 610 TC with coil and cdi from Ducati Energia. Last time I had this bike out, it run fine and started easily. Now there is no spark.

The cdi unit has seven connectors, six are together in one, one (blue) is grounded to the frame.

The coil is blue, has one black and one brown / white cable, and of course the high voltage cable to the plug.

Could anyone guide me through a test for these parts?

And how to test the stator?

I could use a workshop manual, anyone know if they are available for download?


Thanks!

 

[johnclearysm610]

Try here for a manual. http://husqvarnaoutlet.com/repair_manuals

 

[jpmoeller]

Hi.

1 check magnets in the flywheel. They can sometimes become loose and the whole magnet ring gear from rotating.
2 empty carburetor for old gasoline and clean and blow all dyss .. check float height. When the carburetor is turned upside down, "swim-arms", lie completely paralel with the carburetor. See any http://www.ducatimeccanica.com/dellorto_guide/dellorto.html,
3 Fresh fuel to the tank.
4 if necessary. new spark plug.
5 check spark plug cap. Ohm value 1K ohm is best. Measuring the value with an ohm meter .... if it is OK. I had one where the value should be 1 K-ohm, but it was 16.5 K-ohms.
New spark plugs + new cap and the beast started with 2 kicks.

 

[NoMad410]

The manuals are less than useless when it comes to electrics.
I just fixed a problem on my stator (TE410E), and had to check everything from first principles. I did not know the first thing about stators before this!
I am not 100% sure about the TC model, but I think the stator is similar to the TE.
It will have seven wires coming out of it. The three yellow ones (assuming colours are the same) are for the low voltage circuit, in a three-phase arrangement. Check that they all have about the same resistance across them (which may be close to zero), but that they are not open = burnt out. The green and white are the pickup coil for the CDI, resistance should be about 300-400 ohms. The red and black are the excitor for the CDI. I am not sure what the value should be, as mine was burnt out, but I estimate a couple of kilo-ohms at least.
The above are crude checks, if you want to check operation better you will need a scope, but usually even the crude checks are enough.
The resistance across the coil and spark plug cap (if it's NGK) should be about 11 kilo-ohms, about half of that for the coil and half for the spark plug cap. I do not think it should be 1kΩ. Even the manual says 6kΩ or so.

Do these checks first and see how it goes. If all your coils/windings are OK, then the next suspect is your CDI.
Good luck.

 

[paul gadsby]

hello Nomad, could or have you got a wiring diagram for your transformer set up for your te410e? i would like to try that,....i have had a nightmare, no spark ordered stator, stator wrong one sent original to west country windings, they test it and say its ok, sent back so can it either be CDi or coil? whats your thoughts/ have you still got a cdi you would be willing to sell? i am at wits end now, only had bike for 4 days! been off road now for a month...cheers nomad

 

[NoMad410]

hello Nomad, could or have you got a wiring diagram for your transformer set up for your te410e? i would like to try that,....

Hi Paul,
Sorry to take so long to reply, been away from the forum for a bit.

The transformer wiring is very simple, but - AND I STRESS THIS - it is a last resort, i.e. only if you are 1000% sure that your excitor coil is burnt out and you are going to re-wind it yourself. So I'm not at all sure it would apply to your case.
If you still think it might work for you, read the thread in "Older Single cams" (link above) and feel free to contact me with any queries. Basically you take the winding output to the 9V side of the transformer and feed the 240V to the CDI.

Having said that, it seems to be a robust solution, Even though I have now acquired a replacement stator, I haven't bothered replacing it yet, done nearly 1000 miles now, and it's still working a treat. I'll probably replace it soon, when I do the cam-chain.

I would advise you first to check the resistance across the excitor (red and black cables). Do you have a reading? If so there's no need to panic. Check the reading across the pick up too (green and white, usually). This should be a much lower resistance, about 4 Ohms. If this is also good, then you'll probably be OK. One thing we have seen several times now on Thumper Talk, is that the polarity on the pick up coils makes a difference! Many people who were banging their heads on the wall like you are now, found that a simple pole reversal on the pickup did the job!

If these simple things don't sort it out for you, then your CDI or coil may be gone. Check that you are getting well over 100V or more from the excitor when the machine is turning over (on the starter). You should do, if the excitor is not burnt out. If you are, but the machine is still not sparking (even after reversing the pick-up polarity) then it's probably the CDI.

I do actually have a spare CDI, not sure if I want to part with it, though. They do come up on ebay fairly regularly and I think I know someone that wants to sell one for about £100, but do check all the other stuff first, this may be easier than you think.

I see you used "West Country" Windings. If you are in the West Country (UK) within striking area of Bristol, feel free to pm me...

Good Luck!