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14,141 Posts
Discussion Starter · #1 ·
2004~2005 YZF-R1S/SC/T/TC; FZS600S/SC/T/TC (FZ6) Unstable Engine Idling

Symptom: On some units in the affected range,
engine idling speed can become intermittently
unstable after the engine
reaches operating temperature. Idle
speed can drop to 500~600 rpm and
the engine can stall if left idling.

Cause: Intermittent TPS (Throttle Position
Sensor) internal contact.
Remedy: Replace the TPS with one of a new
type as described in this bulletin.


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