Like other manaschi, Jusup Mamai notes that the reason for pronouncing manas was a vision.
According to Jusup Mamai, he first received a vision at the age of ten from the Singer's Son Iraman. In a dream, a black horse with a sweating horse appeared in front of a very large man.
In the spring of 1932, at the request of the people, Jusup read the Manas for the first time in his life. When Dzhusup was 16 years old, his father Mamai died. Two years later, at the age of 18, at a party, Jumakun heard Mambetakun's "Dream of Almambet" narrated by Manaschi. Only then did Jusup become popularly known as Manaschi.
Between 1964 and 1966, a second scientific expedition was sent to record Jusup Mamai's version.
From 1966 to November 1978, Yusuf Mamai was politically persecuted after the outbreak of the "Cultural Revolution" in China.
In December 1978, Yusuf Mamai was summoned to Beijing, where he began writing a version of manaschi for the third time.
Of the materials recorded in 1964, only the manuscript of Semetey by Jusup Mamai remained, the rest is missing.
On June 3, 1989, he, together with the writer Tugolbai Sydykbek uulu, attended the founding meeting of Young Historians of Kyrgyzstan as guests of honor. In 1995, he took part in the traditional millennium anniversary of the Manas epic in Kyrgyzstan.
In accordance with the Decree signed by the President of the Kyrgyz Republic Almazbek Atambayev on May 30, 2014, for his outstanding contribution to the preservation of the great epic "Manas" and other epic works, as well as for his great contribution to the enrichment of the historical and cultural heritage of Kyrgyzstan, Manaschy Zhusup Mamai was awarded the highest award " Hero of the Kyrgyz Republic "with a special sign" Ak Shumkar ".
On the morning of June 1, 2014, Dzhusup Mamai died in a hospital in the Ak-Chii village of the Kyzyl-Suu Kyrgyz Autonomous Region of China.