diff --git a/__tests__/index.spec.ts b/__tests__/index.spec.ts
index 70f5e45..0eddbb8 100644
--- a/__tests__/index.spec.ts
+++ b/__tests__/index.spec.ts
@@ -164,20 +164,6 @@ describe('Test timer', () => {
       await sleep(50)
       expect(callback).toHaveBeenCalledTimes(1)
     })
-    test('should call callback reset', async () => {
-      const callback = vi.fn()
-      const timer = new Timer(callback, {
-        interval: 100,
-        limit: 1,
-        immediate: false
-      })
-      timer.start()
-      await sleep(150)
-      timer.reset()
-      timer.start()
-      await sleep(150)
-      expect(callback).toHaveBeenCalledTimes(2)
-    })
   })
 
   describe('Test async callback', () => {
@@ -304,25 +290,6 @@ describe('Test timer', () => {
       await sleep(50)
       expect(callback).toHaveBeenCalledTimes(0)
     })
-
-    test('should call async callback reset', async () => {
-      const callback = vi.fn()
-      const promise = async () => {
-        Promise.resolve(callback())
-      }
-      const timer = new Timer(promise, {
-        interval: 100,
-        limit: 1,
-        immediate: false,
-        includeAsyncTime: true
-      })
-      timer.start()
-      await sleep(150)
-      timer.reset()
-      timer.start()
-      await sleep(150)
-      expect(callback).toHaveBeenCalledTimes(2)
-    })
   })
   describe('Test use timer in Callback', () => {
     test('should emit stop event', async () => {
diff --git a/src/index.ts b/src/index.ts
index 5c37a84..d793bb3 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -24,7 +24,7 @@ export interface TimerOptions {
   adapter?: TimerAdapter
 }
 
-export type TimerEvent = 'start' | 'pause' | 'stop' | 'end' | 'tick' | 'error' | 'reset'
+export type TimerEvent = 'start' | 'pause' | 'stop' | 'end' | 'tick' | 'error'
 
 export type TimerStatus = 'running' | 'paused' | 'stopped'
 
@@ -41,7 +41,7 @@ export default class Timer {
   private readonly includeAsyncTime: boolean
   public status: TimerStatus
   private readonly eventHub: EventHub
-  readonly adapter: TimerAdapter
+  private readonly adapter: TimerAdapter
 
   constructor(callback: TimerCallback, options?: TimerOptions) {
     this.startTime = 0
@@ -69,7 +69,7 @@ export default class Timer {
     this.eventHub.on(event, listener)
   }
 
-  async start() {
+  start() {
     if (this.status === 'stopped' || this.status === 'paused') {
       if (this.limit > 0) {
         this.status = 'running'
@@ -89,7 +89,7 @@ export default class Timer {
       this.pausedTime = 0
       this.limit === 0 && this.eventHub.emit('end', Date.now())
       this.adapter.cancelTimer(this.timerId!)
-      this.limit = this.initLimit
+      this.limit = this.originalLimit
       this.timerId = null
     }
   }
@@ -104,15 +104,6 @@ export default class Timer {
     }
   }
 
-  reset() {
-    this.eventHub.emit('reset', Date.now())
-    this.adapter.cancelTimer(this.timerId!)
-    this.limit = this.originalLimit
-    this.pausedTime = 0
-    this.status = 'stopped'
-    this.timerId = null
-  }
-
   private async tick(currentTime: number, immediate?: boolean) {
     if (this.status === 'running') {
       const elapsedTime = currentTime - this.startTime