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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through January 08, 2008 » Gas Tank Venting & Brakes « Previous Next »

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Travelingman
Posted on Thursday, January 03, 2008 - 08:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have three questions for those putting miles on the 1125's in warmer weather. I have the only 1125 in the San Antonio are to my knowledge.


First Question:

After riding 150 miles in 82 degree weather and shutting down the bike, the fans will run for there normal cycle and shut down within a minute.

Sitting about fifteen feet from the bike in the garage there is a heavy gas vapor coming from bike. When you walk up to bike there is a boling sound coming from gas tank area. It does not seem to be radiator boil. However, when you open the gas cap the pressure inside the gas tank makes a very loud hissing sound and you can hear gurgingly within the tank.

Second:

Filling up the bike on the side stand and then uprighting bike the gas comes directly out the vent tube and onto the exhaust below it. Maybe 6 OZ. I know I should be more careful but it seems to me I have never had a bike that did this.

Rear Brake Question:

They hardly seem to be there. Dealer bled brakes twice and agrees rear brakes are weak. I do not know if this is beacuse exhaust blows on them or maybe brake pedal needs to be extended to get better leverage on it.

Your responses would be appreciated. Bike runs fanastic other then these issues. 550 miles and getting stronger.

I have brought the bike back to dealer with both questions and they
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Dtx
Posted on Thursday, January 03, 2008 - 09:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I can help on the first one. On my XB, if the rubber gas vent tube was pinched between the air box and the tank cover, it would cause the tank to "pressurize" and hiss like you stated.
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Interex2050
Posted on Thursday, January 03, 2008 - 10:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have the same brake situation...
The rear brake does nothing...
I have been told by others that they thought the rear brake was in fact better then the one on the XB... So that leads me to believe that there is just something wrong.
It could be a blocked passageway or line
I will figure it out eventually, or have the dealer do it such as not to void the warranty.
I am going to wait till they get their official training and service manual though
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Xb9
Posted on Thursday, January 03, 2008 - 11:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Also, if you fill the fuel cell past the lower ring in the filler neck it will puke.
Do not fill past the ring.

On the rear brake - I'm surprised you guys even use it, only time I use it is when stopped in trafic or on a hill. That's all I ever use it for. Maybe it does nothing by design?
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Interex2050
Posted on Thursday, January 03, 2008 - 11:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Xb9,
Its bad to a point where if I am stopped on a hill it takes considerable pressure to keep the bike from rolling back...
I have been told that it was designed to be weak, but this is just useless...
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Sheridan_bueller
Posted on Friday, January 04, 2008 - 01:12 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'm wondering if for whatever reason the rear brakes are glazing on some of you. Just a guess 'cause mine works wonderfully. That used to happen to me every now and then on the front XB9 brake. I would just give the rotor a scrub with a good scotch bright pad and it was back to being great.

On the fuel, I always fill mine while on the side stand to just over the lower ring, then I tip up the bike to burp it and the level drops to right at the ring or just below, depending on how fast the pump is. No dripping fuel.

FWIW
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Zac4mac
Posted on Friday, January 04, 2008 - 02:19 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I saw somebody else say they didn't have a good back brake.
Checked mine a couple of times yesterday and skidded the back tire at 50 and 30 mph.

The only time Loretta smells of gasoline is when she floods out.

Ed, make sure you don't fill to the top of the neck. Look inside and you'll see the top of the frame, about two inches down after lifting the cap. Don't fill past that, same as the XBs.
I overfilled my XB9R a couple of times before I "got it".

Z
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Jdugger
Posted on Friday, January 04, 2008 - 08:49 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I discovered the gas puke a weekend ago, too. What I do is just stick the nozzle of the pump all the way in the tank. It stops fuel delivery just below the lower neck, and the vapor recovery works -- something that often doesn't for motorcycles.

It also stops fuel splatters on the tank.

The 1125r's large fuel capacity means I'm still not on reserve when a lot of other bikes are pulling in for service.
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