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Yamaha FJR Motorcycle Forum

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  1. 3

    Rear-Ended at 70mph—I’m Done!

    I did use the brakes after I slowed to 25. That light is so bright that there is no way it couldn't be seen.
  2. 3

    Rear-Ended at 70mph—I’m Done!

    In July I was riding to work on I270 at 5 a.m. in light traffic. Saw brake lights start to come on about ¼ mile ahead so I rolled off the throttle and slowed to around 25 mph—didn’t even have to use the brakes. Some ways behind me a driver was either asleep or texting and didn’t slow at all (my...
  3. 3

    Brake/Clutch Master Cylinder Washers

    Does anyone know of a source for the sealing washers for the brake and clutch master cylinder lines? Yamaha wants $4.75 each. They are just copper washers--$4.75, REALLY???
  4. 3

    Battery shelf life w/o acid added

    The 2014 Yuasa Technical Manual discusses AGM dry vs. wet shipped and battery shelf life on page 9.
  5. 3

    Dual Platinum Spark Plugs

    Automotove training/service manuals (motorcycle too) use conventional electron theory to explain the flow of electricity. So diagrams always show electrons/amperage flowing from postitive to negative. Makes it easier to explain how stuff works and where to check for voltage drops etc...
  6. 3

    Dual Platinum Spark Plugs

    . Here is a graphic that show how a waste spark system operates. Also, GM, Ford and Chrys all made several millions of cars that used wast spark ignition systems. They call it DIS (distrbutorless ignition system). The red arrows show the path that the spark takes through the two spark plugs.
  7. 3

    Batteries!

    You can learn how to actually test a battery instead of just replacing it Here>>>> https://www.yuasabatteries.com/pdfs/TechManual_2014.pdf on page 22.
  8. 3

    Another TPS question

    Try tapping on the tps with a screwdriver handle while idling. If the idle changes from wacking the tps--you've got a tps problem. Try this both cold and hot.
  9. 3

    Hot starting (cranking) problems

    This is correct in that the amp numbers point to the general problem, or a place to start looking for the problem. If when operating the starter (and it's turnig too slowley to start the engine), and the amp draw is more that 50 amps, the amp reading is indicating that the battery, cables...
  10. 3

    '05 ABS rear sensor fail

    Check the wiring diagram--if the sensor has 3 wires--it's a Hall Effect switch/sensor. If it has only 2 wires, it's an AC pickup coil type of sensor. I'm pretty sure it's the AC PU coil type. Check the cable from the ABS unit to the sensor. If it's damaged (wire broken) it can be repaired with...
  11. 3

    Fan relay

    To trigger the relay (and test the wire from the relay to the ECU) take a 12-volt test light and connect the alligator clip to ground. Turn the ignition sw on (you can also start the engine--but it is not necessary) Find the trigger wire from the relay to the ECU (in the example above it's the...
  12. 3

    Lunasee Wheel Lights Installed

    The tape can be purchased directly from Lunasee for $25 (enough for both wheels with some left over for repairs). They also make a tape applicator for $4 that applies the tape evenly around the wheel. The tape is easy to apply and it does go around the wheel without wrinkles. I tried a short...
  13. 3

    Lunasee Wheel Lights Installed

    I just installed the Lunasee Wheel lights on my 05. Here are some picts. https:// Here are all the parts that come with the lighting kit. Lots of aluminum brackets to make it fit multiple bikes. Light pods (4 of them) can be seen at lower right. https:// Right rear side, pod mounted on the...
  14. 3

    New Yuasa Battery Manual -- (you can download it!)

    The new manual is written more like a magazine article, instead of a dated text book.
  15. 3

    New Yuasa Battery Manual -- (you can download it!)

    I wrote the new Yuasa Technical Manual for Powersports Batteries. The previous manual was over 12 years old. The new manual features more practical info about batteries including how to activate both conventional and AGM batteries, how to test a battery and more. A pdf of the manual can be...
  16. 3

    What do you use for specialty greases?

    For years I have used marine wheel bearing grease--for boat trailer wheels. I have used in on shifters, brake/clutch levers, rear break pedels, wheel bearings and on the FJR the drive shaft (also used it in my Moto Guzzi U-joints). I think I've had the same container for at least 10 years--It's...
  17. 3

    Fuel injector question

    How do you know it's not running on all 4? What are the symptoms? Does this happen hot, cold, at idle, steady crusie or light/heavy acceleration? Need a more specific description of what you're experiencing before jumping on the diagnosis bandwagon.
  18. 3

    2013 Spark Plug Change

    Here is what BMW uses for it's coil-over-plug boxer engines. https://www.cyclenutz.com/BMW-Spark-Plug-Cap-Removal-Tool_p_228.html
  19. 3

    LED replace met for H4 bulbs?

    +1, same as my experience with HIDs on the FJR. I solved the problem with foreground lighting by disconnecting the high beam function on the left light. With the hi beams on, only the right HID solenoid is activated (hi beam). With the right lamp on hi and the left on low beam the foreground...
  20. 3

    My 3D printed helmet lock solution

    The only issue with the 3 D printed lock is if helmets are locked and it rains. I guess you can use them as a way to store rain water for drinking later??
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