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2005 Yamaha Warrior

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

Limited mileage data: 17 of 21 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Electrical System. Review the 13 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine And Engine Cooling. Review the 11 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel System, Gasoline. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports1 fire reports0 injury reports

Power Train complaints

2 reports
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Mileage unknown · Aug 21, 2006
Power Train

THE REAR CYLINDER VALVES ARE STICKING OPEN WHEN MY 2005 YAMAHA ROADSTAR IS WARMING UP. IT HAPPENS VERY UNEXPECTEDLY AND WITHOUT WARNING CAUSING A LOSS OF POWER. THIS LOSS OF POWER HAS LEFT ME SITTING ALONG A VERY BUSY HIGHWAY WITH A NARROW SHOULDER AS WELL AS ALMOST CAUSED ME TO DROP THE BIKE DURING A LEFT HAND TURN IN FRONT O…

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THE REAR CYLINDER VALVES ARE STICKING OPEN WHEN MY 2005 YAMAHA ROADSTAR IS WARMING UP. IT HAPPENS VERY UNEXPECTEDLY AND WITHOUT WARNING CAUSING A LOSS OF POWER. THIS LOSS OF POWER HAS LEFT ME SITTING ALONG A VERY BUSY HIGHWAY WITH A NARROW SHOULDER AS WELL AS ALMOST CAUSED ME TO DROP THE BIKE DURING A LEFT HAND TURN IN FRONT OF ONCOMING TRAFFIC. I SPOKE WITH THE LOCAL DEALERSHIP BUT THEY CLAIMED TO NEVER HEARD OF SUCH A PROBLEM WHILE IT IS WIDELY KNOWN AMONG ROADSTAR RIDERS THAT IT IS A COMMON PROBLEM. IT IS JUST A MATTER OF TIME BEFORE SOMEONE IS INJURED BY THIS. *JB

NHTSA ODI #10166125

3,250 miles · Aug 19, 2006
Power Train

SINCE MY 2005 YAMAHA ROAD STAR HAD 3000-3500 MILES ON IT, IT HAS DEVELOPED A SEVERE LOSS OF COMPRESSION IN IT'S REAR CYLINDER. THIS CAUSES A SAFETY HAZARD BY NOT PRODUCING THE APPROPRIATE ACCELERATION OF SPEED IN CRUCIAL SITUATIONS. AN EXAMPLE WOULD BE WHILE ACCELERATING WHEN MERGING ONTO A HIGHWAY. THE MOTORCYCLE OFTENTIMES CAN…

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SINCE MY 2005 YAMAHA ROAD STAR HAD 3000-3500 MILES ON IT, IT HAS DEVELOPED A SEVERE LOSS OF COMPRESSION IN IT'S REAR CYLINDER. THIS CAUSES A SAFETY HAZARD BY NOT PRODUCING THE APPROPRIATE ACCELERATION OF SPEED IN CRUCIAL SITUATIONS. AN EXAMPLE WOULD BE WHILE ACCELERATING WHEN MERGING ONTO A HIGHWAY. THE MOTORCYCLE OFTENTIMES CANNOT PRODUCE THE SPEED REQUIRED TO SAFELY ENTER INTO A MOVING TRAFFIC LANE. I FEAR BEING HIT OR KILLED IN A TRAFFIC ACCIDENT BECAUSE OF IT, POSSIBLY NOT BEING ABLE TO ACCELERATE QUICKLY ENOUGH OUT OF ANOTHER MOTORIST'S WAY. THIS PROBLEM IS CAUSED BY 'STICKY' VALVES/EXCESSIVE CARBON BUILD-UP IN THE REAR CYLINDER AND VALVES. NOTE; BECAUSE MY MODEL IS NOT LISTED AMONG THE YAMAHA MOTORCYCLE MODEL'S LISTED IN THE DROP-DOWN MENU IN THIS COMPLAINT, I SELECTED 'WARRIOR' AS IT IS CLOSELY RELATED. THIS HAS CAUSED ME PROBLEM'S WELL IN EXCESS OF 300 TIMES, AS I HAVE NUMBERED IN THE 'FAILURES' BOX BELOW. ALSO, THE DEFECTIVE COMPONENT IS UNKNOWN TO ME. IN THIS COMPLAINT I WAS ASKED TO SELECT A DEFECTIVE COMPONENT AND IN ORDER TO CONTINUE, I CHOOSE AN ARBITRARY ONE, FOR THE SAKE OF COMPLETING AND SUBMITTING THIS COMPLAINT ONLY. ONE WAS REQUIRED TO CONTINUE, OTHERWISE I COULDN'T ACCOMPLISH COMPLETING THE COMPLAINT. *NM

NHTSA ODI #10166025

Official recalls

0

No recalls in this snapshot.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.