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This study investigated the effects of different output-based task repetition conditions on EFL learners’ speech act production. Three intact classes of English-major students constituted three instructional groups: (1) the explicit task-repetition (ETR) group, (2) the implicit task-repetition (ITR) group, and (3) the no-input task repetition (NTR) group. All the three groups engaged in the repetition of output-generation tasks. However, before the second performance of the task, the ETR group received input coupled with metapragmatic information, the ITR group received visually enhanced input coupled with a consciousness raising task, and the NTR group received no input. The results of a written discourse completion test (WDCT) revealed statistically significant gains in the learners’ performance from the pretest to the posttest in the ETR and ITR groups, but not in the NTR group. Moreover, the analysis of differences across the groups in the posttest revealed the superiority of the ETR over the ITR and NTR groups. The results suggest that output-based task repetition cannot enhance EFL learners’ speech act production ability unless learners are provided with input before the second performance of the task. Also when explicit and implicit instructional methods are integrated with output-based task repetition, the explicit approach is more effective than its implicit counterpart.