LCGB Forums

Posted: **Tue Oct 28, 2014 7:57 pm**

How can you tell if a cdi unit is failing on the move.
Thanks in advance
Phil

Posted: **Tue Oct 28, 2014 8:32 pm**

Really; only by substituting with a known good one.

Posted: **Tue Oct 28, 2014 8:43 pm**

CHRIS in MARGATE wrote:Really; only by substituting with a known good one.

This is true, I carry a cheap cdi that I bought new off ebay earlier this year for £4.99 including postage. I connected it up to my scoot temporarily and it worked a treat. Removed it, wrapped it in bubble wrap and put it in the tool box for the next time I'm having starting/running problems. 2 minutes swapping wires over will prove or disprove the CDI 8-)

Posted: **Tue Oct 28, 2014 9:22 pm**

And same here. My good spare is bolted to the rear leg.

Posted: **Tue Oct 28, 2014 10:18 pm**

CHRIS in MARGATE wrote: My good spare is bolted to the rear leg.

Ah, now I would have a problem with that, I have a theory that a lot of cdi failures are down to vibration so I have mine mounted on an ally plate attached to the frame above the rear mudguard on 2 small exhaust cotton reel bobbins. So far in 8 years, the only failures I have ever had were down to an electrical fault in the loom. That's why my spare is in bubble wrap in the took box 8-)

Posted: **Wed Oct 29, 2014 9:15 am**

Definitely always carry a spare!

Posted: **Wed Oct 29, 2014 11:12 am**

Those wire's look a little open to the elements

Posted: **Thu Oct 30, 2014 12:05 pm**

Not had a problem yet, good old wd40s a reasonable water repellant

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