Taon 110 dirt bike
 

Hey guys. Son was riding almost new (3hrs) 110 tao. Bike just died. I have no spark. Checked connections, checked continuity of the wires. I am getting a signal from the stator to the cdi. No voltage at coil, am I supposed to have voltage to the cdi? I think the cdi is bad since I have nothing coming out. How/what do I need to check?

Ac or DC CDi?
Ac: at least ~50V in & out | DC: 1?V in, 200 V out
How to check CDI:
AC http://www.sanxin.com.cn/info5/index.asp?id=12 DC http://www.sanxin.com.cn/info5/index.asp?id=13
How to check Ign coil
http://www.sanxin.com.cn/info5/index.asp?id=20
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http://www.chinariders.net/showthread.php?t=16747 | http://www.chinariders.net/showthrea...t=16179&page=2

Looks like it's an ac. Watched the video in the link. Very informative. Bought 3 China dirt bikes, so far have not had great luck.

Faint spark
 

Hey guys. While checking the bike again last night I noticed faint spark from the spark plug. Is it possible the plug is just no good? I am going to try and get one tomorrow either way.

Certainly is possible .

Alright. Tested my pick up and stator, that seems all good. The coil is only reading .3 ohms. This is most likely the culprit correct?

.3 Ω is a healthy reading of primary side...
Healthy secondary is around 3.*k to 4.*kΩ

I should have more voltage coming out of the cdi than going in correct? I have 25 to 30 going in, 100mV coming out.

So, not sure what I did when I changed the oil, but drained and bit out and now it runs fine. Should I leave the oil level half way up the stick?