Can I use a 66cc CDI instead of the stock CDI that came with my 49cc chinese motor? I found one online that seems to have the upgraded rubber wire that will fit the new NGK plug I bought... My plug wire does not unscrew from the CDI and has no screws on it, completely sealed off and leaving me stuck pedaling.. the upgraded CDI is only 10 bucks, which the new plug wire will cost me almost that... and if I can't use the 66cc CDI where can I find a BETTER CDI than this all plastic POS... thanks for any input