2007 Yamaha FJR1300: sudden loss of power

Filed Oct 13, 2010 · Electrical · 38,600 miles · IA

The vehicle, a 2007 yamaha fjr1300 motorcycle, instantly lost all power, the engine quit and electrical systems went dead, leaving me with no way to signal my need to move off of the roadway immediately. Within the five minutes prior to this, the engine sputtered twice, momentarily. The problem was diagnosed as a corroded electrical connection under the front left of the fuel tank and was replaced. The problem was diagnosed with help from posts on fjrforum.com containing numerous reports of similar occurrences.

Filed Jul 17, 2008 · Electrical · 7,336 miles · FL

I was driving the motorcycle when it had a total electrical failure, the engine shut off, and I had to coast to a stop in the median. There was no lights of any kind and no reaction to the ignition switch or starter button. I was able to get power back by moving the handlebars all the way to the left. I went another 3 blocks and it died again. I did the handlebar motion again and power came back. It died in another 3 blocks and I was able to push it home. I removed the ignition switch/key mechanism and disassembled it, and the red wire had pulled cleanly off the circuit board. The damage was similar to the post at http://www.fjrforum.com/forum/index.php?showtopic=103354 except it was the red wire in my case instead of the brown. As you can see by searching the forum, there has been a lot of these failures. The page at http://www.fjrforum.com/forum/index.php?showtopic=26098 lists similar occurrences experienced by forum members. There was a very tight "zip-tie" near the switch in the wiring loom, and it is my opinion that this exerted enough stress to eventually pull the wire off. I corrected the problem by removing the zip tie and re-soldering the wire to the circuit board. An unexpected loss of power might be very dangerous if someone is pulling out into traffic. It was even more dangerous since it was at night and other drivers couldn't see me because I no longer had lights.

Filed Apr 9, 2008 · Acceleration · 100 miles · CA

Riding up hill severe loss of power and power surges. Several times always riding uphill I have had severe power losses and power surges. Caused me to miss turn and slow down to a stop. I shut down bike and restarted. Turned around and went downhill and the bike operated fine. Have not had any repairs or modifications to bike. This occurred on the first ride on this bike uphill and several times after. Have only ridden 600 miles on this bike.

Filed Jul 10, 2007 · Engine · 800 miles · CA

Altitude above 1500 feet, bike surges and feels as though it would stall. Took to dealership who adjust throttle. Next ride between 1500 and 7000 feet bike continued to surged and loss power going around an incline curve. Had to pull over and shut down the engine. Serious safety issue.

Filed Jul 6, 2007 · Fuel system · 640 miles · WA · crash

1) throttle fainls to respond properly when ascending to a higher altitude more than 1500ft higher than the starting point. 2) this has occurred on several occasions. The throttle will fail to respond when adding more throttle. The bike will begin to loss power until the throttle has been turned to add approximately 20% more, then it will accelerate abruptly. I have run off the road on a slow uphill corner while trying to keep up with the flow of traffic. I ended up being able to stop before I crashed into a snow bank. I have experienced this failure almost everytime I ride my motorcycle into the mountains. The motorcycle will only begin to respond correctly after shutting the power off for about one minute. 3) adventure motorsports has diagnosed the issue, and tried to make adjustments to correct the issue. This has not helped. 46 other owner have report this issue to me as well, the last 6 digits of their VIN's are 000385 to 003350 so far.

Filed Jun 30, 2007 · Engine · 260 miles · OR

Severe engine surging and complete loss of power when riding through varying altitudes. Bike acts like it's running out of gas and loses all power for 1-3 seconds then power comes on suddenly almost like wow. Very dangerous when it occurs in corners as it's completely unpredictable to the point where the motorcycle is not operable.