I would have to agree with prasocyte here, the first rung on the yogic ladder is chitta shuddhi - purity of mind. Selflessness, patience, compassion, charity, and all the other moral traits are first needed to make any solid progress on this path.
The foundation needs to be strong to withstand the fierce winds of kundalini when she begins to blow, otherwise your house will collapse around you and you will probably be worse off than when you started. If your base is strong with moral courage you will be able to cope with whatever dirt kundalini drags up from your causal body. Otherwise you may be easily shaken and leave the path. First develop patience, serenity, courage etc and then take up the practise of yoga with full faith.
As much as we may loathe them, the cardinal principles of all traditional religions are there for a reason - to develop the individual to receive the higher graces, particularly the electric power of kundalini.
The practice of Kechari Mudra will be of no use in the beginning stages. The effort would be better spent in pranayama, meditation and yoga asanas to purify the thousands of nadis to prepare for Kundalini awakening. After it is awakened Kundalini takes your hand and guides you step by step through various practices designed to remove blockages that are specific to your condition.
This automatic yoga led by Kundalini herself is real Kundalini Yoga. Everything else is preparatory to her awakening.