FJRiders.com

Posted: **Mon Apr 28, 2025 1:07 pm**

Bugnatr wrote: ↑Mon Apr 28, 2025 12:19 am
Toter wrote: ↑Sun Apr 27, 2025 5:47 pm Took the FJR out for a spin today. Been quite a while. Only choice, as the GSA had an uncommanded braking event last Wednesday, and is at the dealer for diagnosis. Bike is under warranty. First time I have had a bike to a dealer in ???? over 19 years maybe. But, admittedly, haven't had very many bikes with warranty. Anyway, great ride out towards Suches. Perfect weather.
uncommanded braking event Never heard that phrase before but I'm willing to bet it's not a good thing.

Sure ya have Bugs. The term rapid unplanned disassembly is a euphemism used by engineers to refer to a catastrophic failure of a system.

Infrequently my 2018 Honda CR-V has uncommanded braking on a sunny day while traveling from sunlight to shade from a freeway overpass. First it will flash a warning on the dash, often ending the event and less frequently it will brake on my behalf. Oh thank you Honda. There are reports filed the the NTSB that this has cause some accidents. So now I get to play the game of do I turn it off. The Honda has 65000 miles I can maybe it has happened 5 times and 2 of those the brakes engaged.

Electronics are nice but not without shop time. So when I am in the back country riding the Mighty DR650 it is good to know it was engineered using stone knives and bear skins.

Posted: **Mon Apr 28, 2025 2:39 pm**

fontanaman wrote: ↑Mon Apr 28, 2025 1:07 pm
Bugnatr wrote: ↑Mon Apr 28, 2025 12:19 am
Toter wrote: ↑Sun Apr 27, 2025 5:47 pm Took the FJR out for a spin today. Been quite a while. Only choice, as the GSA had an uncommanded braking event last Wednesday, and is at the dealer for diagnosis. Bike is under warranty. First time I have had a bike to a dealer in ???? over 19 years maybe. But, admittedly, haven't had very many bikes with warranty. Anyway, great ride out towards Suches. Perfect weather.
uncommanded braking event Never heard that phrase before but I'm willing to bet it's not a good thing.
Sure ya have Bugs. The term rapid unplanned disassembly is a euphemism used by engineers to refer to a catastrophic failure of a system.

Infrequently my 2018 Honda CR-V has uncommanded braking on a sunny day while traveling from sunlight to shade from a freeway overpass. First it will flash a warning on the dash, often ending the event and less frequently it will brake on my behalf. Oh thank you Honda. There are reports filed the the NTSB that this has cause some accidents. So now I get to play the game of do I turn it off. The Honda has 65000 miles I can maybe it has happened 5 times and 2 of those the brakes engaged.

Electronics are nice but not without shop time. So when I am in the back country riding the Mighty DR650 it is good to know it was engineered using stone knives and bear skins.

Probably not electronic. No fault codes using GS-911. Right side front rotors is heat discolored, left side not. Looks like dragging caliper heated brake fluid to boiling and front lockup. Bike panic stopped. Luckily was going straight. When stopped, front lever rock hard, unable to move bike. Had to open bleeder on right side to relieve pressure, and move bike from road. Didn't feel any dragging, or sluggishness of bike. Was in 6th gear loafing along at 55 mph on rolling hills. Blockage at Master cyl., I woul expect both rotors dragging. Wierd, how sudden it was. Didn't lock tire. Maybe ABS prevented a lock. Couldn't tell as it was uncommanded. We shall see.

Posted: **Mon Apr 28, 2025 3:38 pm**

This weekend I watched/helped John (JREW) mount some new tires for the mighty FJR. Then things went sideways went I got home and mounted the wheels back on the bike. Everything seemed to go smooth, until I finished and tried to spin the front wheel....UGH!! You can guess, the wheel didn't spin it just drug like the brakes were on. After several attempts to figure out what I did wrong with the brakes I gave up and started from scratch. I pulled the front wheel off and low and behold I put the spacers on the wrong sides. I wonder how much time I have spent correcting my mistakes.

Well, on the plus side it is done and feels like butter. I figured after the frustration I learned something, and it didn't cost me anything extra, so that is a good thing.

Posted: **Mon Apr 28, 2025 4:38 pm**

Lexington Kentucky you say.

I say Red State BBQ for some twice smoked brisket. It's just off the highway.

Posted: **Mon Apr 28, 2025 5:47 pm**

Here is to Toter getting the BMW repaired quickly!

Posted: **Mon Apr 28, 2025 5:48 pm**

bungie4 wrote: ↑Mon Apr 28, 2025 4:38 pm Lexington Kentucky you say.

I say Red State BBQ for some twice smoked brisket. It's just off the highway.

Well, I didn't say it, but I do find that quite coincidental.

I was just looking at routes to get to SEO. There are 2 ways to get to Marietta,and both are nearly identical in time and distance. The "westerly" route takes me through Lexington, KY, and if things go well, that might be a good "night 1 stop". So.... I haven't been that way in quite while - and I do like me some good brisket.

Decision made!

Posted: **Mon Apr 28, 2025 7:06 pm**

Hppants wrote: ↑Mon Apr 28, 2025 5:48 pm
bungie4 wrote: ↑Mon Apr 28, 2025 4:38 pm Lexington Kentucky you say.

I say Red State BBQ for some twice smoked brisket. It's just off the highway.
Well, I didn't say it, but I do find that quite coincidental.

I was just looking at routes to get to SEO. There are 2 ways to get to Marietta,and both are nearly identical in time and distance. The "westerly" route takes me through Lexington, KY, and if things go well, that might be a good "night 1 stop". So.... I haven't been that way in quite while - and I do like me some good brisket.

Decision made!

Red State BBQ is pretty damn fine...it's kind of a hole in the wall place, but the food is worth the trip.

Posted: **Mon Apr 28, 2025 7:29 pm**

My last stop at Red State bbq was at about 10 in the morning. They don't open until 11.

I waited, and I'd do it again.

Posted: **Mon Apr 28, 2025 8:31 pm**

Toter wrote: ↑Mon Apr 28, 2025 2:39 pm Probably not electronic. No fault codes using GS-911. Right side front rotors is heat discolored, left side not. Looks like dragging caliper heated brake fluid to boiling and front lockup. Bike panic stopped. Luckily was going straight. When stopped, front lever rock hard, unable to move bike. Had to open bleeder on right side to relieve pressure, and move bike from road. Didn't feel any dragging, or sluggishness of bike. Was in 6th gear loafing along at 55 mph on rolling hills. Blockage at Master cyl., I woul expect both rotors dragging. Wierd, how sudden it was. Didn't lock tire. Maybe ABS prevented a lock. Couldn't tell as it was uncommanded. We shall see.

If I may remind everyone of my suggestion to bleed brakes annually.... either of two things could have happened, (a) the fluid may have had enough moisture in it to expand when heated (steam), and built pressure inside the brake fluid reservoir which caused your panic braking. (b) brake fluid level in reservoir was at max/maybe more, and did not have room to expand. Never fill brake fluid to max, just a hair under is good.

Your dragging caliper caused the overheating and expansion of the fluid..... however, let's see what the warranty boys say....

Posted: **Tue Apr 29, 2025 9:25 pm**

Stopped to visit with JWilly.

IYKYK.

Sent from my SM-S901U using Tapatalk

Posted: **Wed Apr 30, 2025 6:00 am**

rbentnail wrote: ↑Wed Apr 23, 2025 6:36 pm Got my new rear tire installed and while doing that the post delivery lady dropped off the Motopumps air compressor so I just HAD to try it out. My impressions:

without the bag and power cord accessories it stows nicely under the front seat. It pumps air as expected though it does not inflate as quickly as advertised but these small ones rarely do. Now the kicker- the air chuck. P.O.S.!! I have T-valves to accommodate TPMS so I ordered it with the straight latching air chuck. Doesn't seal! I rotated it 90 degrees 4 times and I always lost more air than was going in. I finally laid on the ground and had to maintain constant pressure on the chuck in order to inflate the tire. Because of this I'd give the Airshot 2.1 a solid 2-1/2 stars.

I'm going to email Motopumps and see if I can trade the latching air chuck hose for a straight screw-on one.

I emailed, Rob at Motopumps sent the screw-on hose. Mucho gooder! Feeling much better about SEO now with stuff I know works stowed under the seat.

Posted: **Wed Apr 30, 2025 8:30 am**

extrememarine wrote: ↑Tue Apr 29, 2025 9:25 pm Stopped to visit with JWilly.

IYKYK.

Sent from my SM-S901U using Tapatalk

Great pic. Thanks for keeping your helmet on.
Sorry, missing SEO is starting to make me grumpy.

Posted: **Fri May 02, 2025 11:20 am**

raYzerman wrote: ↑Mon Apr 28, 2025 8:31 pm
Toter wrote: ↑Mon Apr 28, 2025 2:39 pm Probably not electronic. No fault codes using GS-911. Right side front rotors is heat discolored, left side not. Looks like dragging caliper heated brake fluid to boiling and front lockup. Bike panic stopped. Luckily was going straight. When stopped, front lever rock hard, unable to move bike. Had to open bleeder on right side to relieve pressure, and move bike from road. Didn't feel any dragging, or sluggishness of bike. Was in 6th gear loafing along at 55 mph on rolling hills. Blockage at Master cyl., I woul expect both rotors dragging. Wierd, how sudden it was. Didn't lock tire. Maybe ABS prevented a lock. Couldn't tell as it was uncommanded. We shall see.
If I may remind everyone of my suggestion to bleed brakes annually.... either of two things could have happened, (a) the fluid may have had enough moisture in it to expand when heated (steam), and built pressure inside the brake fluid reservoir which caused your panic braking. (b) brake fluid level in reservoir was at max/maybe more, and did not have room to expand. Never fill brake fluid to max, just a hair under is good.

Your dragging caliper caused the overheating and expansion of the fluid..... however, let's see what the warranty boys say....

Update:
Heard from the dealer yesterday. They tested ABS unit and could find no faults or issues. They are working with BMW North America. Plan is to replace right caliper, pads, and rotor.

Posted: **Fri May 02, 2025 12:57 pm**

Things happen. Hope this fixes you up Ed.

Posted: **Fri May 02, 2025 1:27 pm**

D-Eagle wrote: ↑Fri May 02, 2025 12:57 pm Things happen. Hope this fixes you up Ed.

I hope it never reoccurs…especially during a 5+ car pass.

Posted: **Fri May 02, 2025 4:04 pm**

D-Eagle wrote: ↑Fri May 02, 2025 12:57 pm Things happen. Hope this fixes you up Ed.

Thanks. It makes sense. If it was master cylinder, both fronts would have been dragging. Same with an ABS module issue. You could see the heat discoloration on the right rotor. I will feel like a test pilot when I first ride it. I think I'll bring my laser thermometer and keeping checking rotors as I go along.

Posted: **Fri May 02, 2025 4:15 pm**

Agree with the master cyl theory, Ed, can't be it.....

Meanwhile, NY FJR visiting today, we're putting on new Roadsmart 4 shoes.

Posted: **Fri May 02, 2025 4:55 pm**

raYzerman wrote: ↑Fri May 02, 2025 4:15 pm Agree with the master cyl theory, Ed, can't be it.....

Meanwhile, NY FJR visiting today, we're putting on new Roadsmart 4 shoes.

Would like to try the Cont. Trail Attack 3's on the FJR. They make them in the proper size. 6.25 mm tread depth front, 9.0 mm rear. Much more than road tires. They grip well, wet or dry, and wear terrific. Take a look at the tread pattern, they're road tires, just with more rubber. Be a while for me as I put a lot more miles on the GSA.

Posted: **Fri May 02, 2025 6:35 pm**

Looked at it, wishing I was at SEO.

Posted: **Fri May 02, 2025 7:10 pm**

Spininprop wrote: ↑Fri May 02, 2025 6:35 pm Looked at it, wishing I was at SEO.

Was thinking the same thing as I was changing oil on the dually!

FJRiders.com

What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?

Re: What did you do to your FJR today?