DT125 LC Weak Spark?

[Ollie1995]

Hi, I've pulled my project DT125 LC out the shed and I'm trying to finally sort the spark. Basically, it's got a really shoddy loom that I made to try get a spark and I finally managed to get one. However it will jump about 2-3mm through the HT lead but only occasionally will go through the plug. My dad was saying it looked a bit weak and when we held it, it only really felt like one of those shock pens. After cleaning the earthing points, the spark has improved a lot. How could I make the spark go through the plug more reliably, could it be the cap. It may be the CDI or the Coil but I haven't been able to test them. Any advice would be great and I'll try get a video up later.

Cheers, Ollie.
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XR 125, DT125 LC, Greeves Scottish, RS200, XS400, GPX600r

Theory Passed - 18/7/13 MOD1 Booked - 24/9/13

[stirlinggaz]

hi,
1st thing i do is replace the spark plug & then work back.
replace the plug cap & ht lead, cheap & easily replaced. (i buy it in metre lengths).
total cost? around a fiver all in & takes 10mins. (not counting the spark plug, seeing as i usually have a couple of br8's in tool box).
THEN onto the coil etc,
cheers,
GAZ

[Ollie1995]

It's a brand new spark plug/cap but the cap does feel a bit loose so i might try another cap. Here's the video showing the spark from the HT lead:

https://i941.photobucket.com/albums/ad257/ollielovesturtles/th_DT125Spark_zps20868301.jpg
____________________
XR 125, DT125 LC, Greeves Scottish, RS200, XS400, GPX600r

Theory Passed - 18/7/13 MOD1 Booked - 24/9/13