Polaris Virage TX 2000 Service Manual page 260

ELECTRICAL
Ignition Timing Adjustment
8. Connect timing to light to MAG high tension wire.
Start engine and verify timing with timing light.
Never operate the engine for more than 15 seconds while
the watercraft is out of the water. Overheating of engine
and drive line components will result.
9. Timing can now be set to exact specification
using the Ignition Point Adjustment Unit. Press
the "POS" or "NEG" button to advance or retard
timing until timing is at specification. Pressing the
"POS" or "NEG" buttons will advance or retard
the timing in one degree increments up tp two
degrees each way.
10. After correct timing has been established,
remove the timing light and install the timing
cover plug.
11. Remove exhaust and battery cable. Open
electrical box and disconnect the Ignition Point
Adjustment Unit. Reassemble the electrical box
and install.
12. Reconnect the battery and any exhaust hoses
that were removed to access the electrical box.
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