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How do you time a 1983 honda xl600r

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Need help on timing not sure how to time the engine I've put at tdc and made sure the marks were lined up on the head

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Ignition timing;

From Honda Owner Workshop Manual.

1. Ignition timing is fixed and can't be adjusted.

2. Connect a timing light and tune up tachometer to the engine.

3. Remove the timing hole plug from the left engine cover.

4. Start the engine. Let it idle and compare idle speed. (Should be 1200 rpm on '83)

5. At idle, the timing light should flash when the F mark on the alternator rotor is aligned with the timing pointer on the crankcase.

6. Operate the throttle to slowly increase engine speed to the full advance speed listed (4000 rpm) At that point the timing light should flash when the timing pointer on the crankcase is between the full advance marks (parallel lines) on the alternator rotor.

7. If the light doesn't flash at the proper time, there's a problem in the electronic ignition system (possibly defective CDI unit)

Hope this helps.

Rossi

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