
Passing ghee pot through fire 3 times, starting from left to right each time.

Purifying sacrificial ladle with acamana water.

Passing the ladle through fire 3 times, starting from left to right.
Putting drops of water into right palm, turning palm sideways on the right side of the vedi so that the water sprinkles in a straight vertical line, I chant om ananta anumanyasva.
Putting drops of water into right palm, turning palm sideways on the right side of the vedi so that the water sprinkles in a straight vertical line, I chant om ananta anumanyasva.

Doing the same along along a horizontal line south of the vedi, I chant om acyuta anumasyasva.

And doing the same along a vertical line on the left side of the vedi, I chant om sarasvaty anumanyasva.
Then I take the silver coconut with 5 leaves off the top of the kumbha, dip a leaf in the water of the kumbha, and sprinkle the water around the vedi while chanting Om klim gopijanavallabhaya namah.
Now the yajna beings. Om bhur svaha idam visnave idam na mama; om bhuvah svaha idam acyutaya idam ma mama; om svar svaha idam narayanaya idam na mama; om bhur bhuvah svah svaha idam anantaya idam na mama. This is called the Vyasta Samasta Mahavyahrti homa. What shoud follow this are sixteen offerings that could, as you have been doing, be accompanied by chanting the sixteen prayers of the Purusa Sukta. Actually you can chant any sixteen prayers you like. You can take sixteen prayers from Bhagavad-gita, for example. In the yajna I do, I begin with four Vedic mantras--the first prayer of Purusa-sukta, then two mantras from Taittirya Brahmana, then a Yajur-veda mantra--and then I chant the oblation mantra given in SB 6.19.8 twelve times, putting fire into the ghee after each time and chanting svaha. This Bhagavatam oblation mantra is a short form of a puja mantra given in the previous verse. In his purport to that verse, Srila Prabhupada states, "This mantra is very important. Anyone engaged in Deity worship should chant this mantra, as quoted above, beginning with om namo bhagavate maha-purusaya."
Vyasta Samata Mahavyahrti homa is performed again, followed by Mula-Mantra-Gayatri homa: chanting aim guruva namah, klim gauraya namah, klim gopijanaballabaya namah, srim-klim radha-krsnabhyam namah, ksraum narasimhaya namah and om sudarsanaya namah, I offer ghee into the fire with each mantra. On days like ekadasi when it is nice to increase the service to the Lord, I chant each mantra 10 times with an offering each time.
After these mula-mantra/gayatri offerings I again do Maha Samasta Mahavyahrti homa. This is followed by Udicya Karma. The fire is "changed" from Vaisnava-agni to Vidhu-agni. This is done by showing the installation mudras and chanting the associated mantras (om vidhu namagnaye iha vaha iha vaha; iha tistha etc.). Then the nyasa mudras should be shown, and their mantras chanted (klim hrdaya namah; krsnaya svaha etc.).
Vaysta Samasta Mahavyahrti homa is to be performed again. Then prayascitta homa, consisting of offerings to these mantras:
om pahi no 'cyuta enase svaha idam visnave idam na mamaom pahi no visva vedase svaha idam visnave idam na mamaom yajnam pahi hare vibho svaha idam visnave idam na mamaom sarvam pahi sriyah pate svaha idam visnave idam na mamaom pahi no 'nanta ekaya pahi uta dvitiyaya pahi urjam trtiyaya pahi girbhis catasrbhih visno svaha idam visnave idam na mamaom purnar urja nivartasva punar visna isa ayusa punar nah pahi ahamsah svaha idam visnave idam na mamaom saha rayya nivartasva visno pinvasva dharaya visvapsnya visvatas pari svaha idam visnave idam na mamaom prajapateh visno na tvat etani anyo visva jatani pari ta babhuva yat kamas te junumas tanno 'stu vayagrh syama patayo rayinam svaha idam visvave idam na mama
Vyasta Samasta Mahavyahrti Homa again. Then Vaisnava homa, which I've condensed to the om ajnana timirandhandasya mantra (one ahuti or offering in the fire), the two Srila Prabhupada pranama mantras (two ahutis), the vanca-kalpa verse (one ahuti), the Panca-tattva mahamantra (one ahuti) and the Hare Krsna mahamantra (one ahuti).
Then I sprinkle a circle of water around the vedi from the silver kumba leaves, chanting Om klim gopijanavallabhaya namah; then I sprinkle water from the side of my palm on 3 sides of the fire, chanting (these mantras are a little different from the first time around): om ananta anumamsthah, om acyuta anumamsthah, om sarasvati anumamsthah.
Then I rise to perform purna ahuti. I chant the namo brahmanya devaya verse and offer ghee into the fire: idam krsnaya idam na mama. Then showing the maha mudra and pranam mudra I recite the invocation to Sri Isopanisad (om purnam adaha purnam idam...).
The comes Vamadeva-gam. Still standing, I take up the silver kumbha and sprinkle water on the "northwest" side of the fire, chanting om bhur bhuvah svah kaya nas citra abhuvad uti sada vrdhah sakha kaya sacisthaya vrta. Again sprinkle in the same place, then chant om bhur bhuvah svah kas tva satyo madanam mamhistho matsad andhasah drda cidaruje vasu. Again sprinkle in the same place, then chant om bhur bhuvah svah abhi sunah sakhinam avita jaritrnam satam bhavasya utaye.
Then I sprinkle the 10 directions around the fire. There are mantras to be chanted for each of these sprinkles:
om dyauh santir antariksam santih pritivi santir apah santihvayuh santis tejah santir osadhayah santir lokah santihbrahmana santih vaisnava cantih santir astu dhrtir astu
om santir om santir om santih
Mantras for forgiveness of offenses follow. Then Prema-dhvani prayers (Jaya om visnupada paramahamsa...etc.).
At the end one should glorify Lord Vamanadeva. I chant the calayasi vikramane balim... prayer from Dasavatara-stotram (actually I chant the whole stotram because it is so auspicious, but the verse to Lord Vamana is needed to end the yajna. The reason is given in SB 8.23.31p.
Now the yajna beings. Om bhur svaha idam visnave idam na mama; om bhuvah svaha idam acyutaya idam ma mama; om svar svaha idam narayanaya idam na mama; om bhur bhuvah svah svaha idam anantaya idam na mama. This is called the Vyasta Samasta Mahavyahrti homa. What shoud follow this are sixteen offerings that could, as you have been doing, be accompanied by chanting the sixteen prayers of the Purusa Sukta. Actually you can chant any sixteen prayers you like. You can take sixteen prayers from Bhagavad-gita, for example. In the yajna I do, I begin with four Vedic mantras--the first prayer of Purusa-sukta, then two mantras from Taittirya Brahmana, then a Yajur-veda mantra--and then I chant the oblation mantra given in SB 6.19.8 twelve times, putting fire into the ghee after each time and chanting svaha. This Bhagavatam oblation mantra is a short form of a puja mantra given in the previous verse. In his purport to that verse, Srila Prabhupada states, "This mantra is very important. Anyone engaged in Deity worship should chant this mantra, as quoted above, beginning with om namo bhagavate maha-purusaya."
Vyasta Samata Mahavyahrti homa is performed again, followed by Mula-Mantra-Gayatri homa: chanting aim guruva namah, klim gauraya namah, klim gopijanaballabaya namah, srim-klim radha-krsnabhyam namah, ksraum narasimhaya namah and om sudarsanaya namah, I offer ghee into the fire with each mantra. On days like ekadasi when it is nice to increase the service to the Lord, I chant each mantra 10 times with an offering each time.
After these mula-mantra/gayatri offerings I again do Maha Samasta Mahavyahrti homa. This is followed by Udicya Karma. The fire is "changed" from Vaisnava-agni to Vidhu-agni. This is done by showing the installation mudras and chanting the associated mantras (om vidhu namagnaye iha vaha iha vaha; iha tistha etc.). Then the nyasa mudras should be shown, and their mantras chanted (klim hrdaya namah; krsnaya svaha etc.).
Vaysta Samasta Mahavyahrti homa is to be performed again. Then prayascitta homa, consisting of offerings to these mantras:
om pahi no 'cyuta enase svaha idam visnave idam na mamaom pahi no visva vedase svaha idam visnave idam na mamaom yajnam pahi hare vibho svaha idam visnave idam na mamaom sarvam pahi sriyah pate svaha idam visnave idam na mamaom pahi no 'nanta ekaya pahi uta dvitiyaya pahi urjam trtiyaya pahi girbhis catasrbhih visno svaha idam visnave idam na mamaom purnar urja nivartasva punar visna isa ayusa punar nah pahi ahamsah svaha idam visnave idam na mamaom saha rayya nivartasva visno pinvasva dharaya visvapsnya visvatas pari svaha idam visnave idam na mamaom prajapateh visno na tvat etani anyo visva jatani pari ta babhuva yat kamas te junumas tanno 'stu vayagrh syama patayo rayinam svaha idam visvave idam na mama
Vyasta Samasta Mahavyahrti Homa again. Then Vaisnava homa, which I've condensed to the om ajnana timirandhandasya mantra (one ahuti or offering in the fire), the two Srila Prabhupada pranama mantras (two ahutis), the vanca-kalpa verse (one ahuti), the Panca-tattva mahamantra (one ahuti) and the Hare Krsna mahamantra (one ahuti).
Then I sprinkle a circle of water around the vedi from the silver kumba leaves, chanting Om klim gopijanavallabhaya namah; then I sprinkle water from the side of my palm on 3 sides of the fire, chanting (these mantras are a little different from the first time around): om ananta anumamsthah, om acyuta anumamsthah, om sarasvati anumamsthah.
Then I rise to perform purna ahuti. I chant the namo brahmanya devaya verse and offer ghee into the fire: idam krsnaya idam na mama. Then showing the maha mudra and pranam mudra I recite the invocation to Sri Isopanisad (om purnam adaha purnam idam...).
The comes Vamadeva-gam. Still standing, I take up the silver kumbha and sprinkle water on the "northwest" side of the fire, chanting om bhur bhuvah svah kaya nas citra abhuvad uti sada vrdhah sakha kaya sacisthaya vrta. Again sprinkle in the same place, then chant om bhur bhuvah svah kas tva satyo madanam mamhistho matsad andhasah drda cidaruje vasu. Again sprinkle in the same place, then chant om bhur bhuvah svah abhi sunah sakhinam avita jaritrnam satam bhavasya utaye.
Then I sprinkle the 10 directions around the fire. There are mantras to be chanted for each of these sprinkles:
om dyauh santir antariksam santih pritivi santir apah santihvayuh santis tejah santir osadhayah santir lokah santihbrahmana santih vaisnava cantih santir astu dhrtir astu
om santir om santir om santih
Mantras for forgiveness of offenses follow. Then Prema-dhvani prayers (Jaya om visnupada paramahamsa...etc.).
At the end one should glorify Lord Vamanadeva. I chant the calayasi vikramane balim... prayer from Dasavatara-stotram (actually I chant the whole stotram because it is so auspicious, but the verse to Lord Vamana is needed to end the yajna. The reason is given in SB 8.23.31p.
