Turkey's youngest full general, Irfan Ozaydinli, hos protested to Premier Sulieman Demirel that his four-party conservative coalition is mismanaging the government, military sources said today.

The air force general's letter to Demirel cited mounting polital violence, continual bickering among the coalition parties and the prolonged U.S. arms embargo as adversely affecting the armed forces, according to the sources.

More than 150 persons have died in clashes between righist and leftist extremists, mostly students, since Demirel came to power in March 1975.

Continuing instability is thought likely to complicate solution of the Cyprus dispute, despite recent progress. It is this issue that has marred Turkey's relations with the United States and weakened the southeast flank of NATO.

Gen. Ozaydinli's letter has triggered a minor crisis in the Demirel Cabinet, according to government sources. The general is a liberal whose appointment as commander of the air force was blocked last year by the premier.

According to the military sources, Ozaydinli handed the letter to Demirel at a meeting yesterday of the High Military Council. Ozaydinli, 50, is on the general staff.

The council, composed of armed forces commanders, the premier and Defense Minister Ferit Melen, was meeting to review defense policies.

The sources stressed that the views expressed by Ozaydinli were his own and not necessarily those of other officers.

Demirel is serving his second term as premier. The first way cut short in 1971 when the army, in a "coup by communique" forced him to resign under threat of military takeover.

The ouster followed serious anti-government, anti-Western violence including the deaths of three NATO technicians - two Britions and a Canadian - excution of the Israeli consul and kidnaping of four U.S. servicemen.

The U.S. arms embargo, referred to by Gen. Ozaydinli, was imposed by Congress following Turkey's 1974 invasion of Cyprus after a Greek-led coup aimed at uniting the island with Greece.

The Carter administration has deferred discussion on repeal of the arms ban until after consultations with Turkey on settlement of the Cyprus crisis. Special envoy Clark Clifford is due in Ankara Feb. 20.

Following presentation of the general's letter, Interior Minister Oguzhan Alisturk accused Vice Premier Alpaslan Turkes of failing to control his so-called "commandos," who have been allegedly responsible for the numerous student clashes.