Hi, yes, ur C106D1G is ok fot this. I think the G suffix shows it to be the run of the mill, general purpose item but either way its ok. Same with ur charge cap. X2 rating, 275VAC rating, 1uf. Thats ur huckleberry. I'll go back & check ur pic when I can see the phone screen better but things to check. Ur SCR has the writting side up so u can read it as it sits on the board. Diode polarity, the bar across the arrow heads point on the layout is the silver band on the diode body & must go in that way, with all diodes which are 1N4007 types. Tantalum caps are in the right way. They have a + marked leg that must go to ground, on all of them. This means the 4.7uf's + leg goes to the edge of the board where the wire link connects & the two 0.47uf's + marked leg goes to the jumpers which bring them into circuit by grounding them.
Next, ur coil. Is it a good coil. Is it connected correctly. Coil types with 2 spade connectors have a ground connection plus the connection to the CDI (charge cap). The coils ground connection is internally connected to the bottom end of both the primary & secondry winding & also to the core. The CDI connects to the other end of the primary winding & ur plug to the other end of the secondry. So the two spade connections must be properly orientated.
Wot is ur coil off???
I have seen simillar looking coils off like pit bikes or pocket bikes but they have a built in CDI (like a china girls) with the CDI being built into the rectangular section like where ur spade connections are. Some are 1 wire types & some 2 wire types which are fired by a small triggering coil in the magneto. These type couls will not work with this CDI unless u removed the CDI part & then properly connected thus one to it, which of course, could be done. I'll be home soon & check ur pic.
One more thing, a while back someone contacted me having built a CDI & was having trouble,,, it wouldnt fire his new coil. After numerous emails being exchanged & it still not working, I made one for him, tested it on my bike & mailes overseas to him. Ten days or so later he got it, thru it on his bike,,,,, & nothing. Another coil & both his & my CDI fired straight up. He had built it properly first time. Make sure ur coil works.
I believe Huffydavidson posted the ebay link for the CR80 coil just a few posts back, for a grand total of like,,,, 11 bucks. Seriously, unless u gave a coil off an MXer or simillar lying around that u r 100% certain works, when u order ur components to build ur CDI, pay the extra 15 bucks & order the CR80 coil at the same time. It has a considerably hottrr spark than the other 3 yamkawsuki coils for the 80cc range, & the chance of it not working out if the box are pretty remote.
Cheers