Question about 1998 BMW R 1100 RS

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My 1994 bmw r1100rs is leaking gas from the breather hoses

What could be causing this

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  • boxer47_32 May 11, 2010

    Where is the gas leaking from? Tank, fuel injectors, quick connect gas lines?

  • silrodau May 11, 2010

    You don't say where the gas is leaking from!

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Sounds like you need to replace carbi gaskets if that is where it is leeking.Also cheak the tap and the hose are connected if you turn the tap from on to resv to off a few times there may be something lodged in the tap and it may come lose

Posted on Dec 09, 2008

  • foxmick Dec 09, 2008

    Sounds like you need to replace carbi gaskets if that is where it is leeking.Also cheak the tap and the hose are connected if you turn the tap from on to resv to off a few times there may be something lodged in the tap and it may come lose

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I recently bought a 1994 BMW 1100 the fuel in the gas tank has been sitting. I took the gas tank off its full of rust. Can someone help me to label the parts here that are in the photo? They were inside...


Hi, Sky what you have there is a fuel pump, pressure regulator, fuel filter, fuel gauge sensor, and supporting plumbing, sorry you can't find the first and best tool you ever bought for your BMW despair, not for a mere $0 you can download another one. For more information about your issue and "FREE" valuable downloads that you will need please visit the websites below. Good luck and have a nice day. 1993 2000 BMW R1100RT R1100RS Service Manual Moto Data Project
BMW Motorcycle Parts Fiche OEM BMW Motorcycle Parts online 1970 present BMW
http://www.ketchum.org/BMWmc/R1100.pdf
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1100 backfire my rt was running perfectly it went for service at bmw agent since then it idles rough and backfires on overunhave they messed with my engine management progam


Hi, Louis and the usual suspects are:

1. A severely drained battery.

2. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.

3. Faulty main circuit breaker and or connections.

4. Faulty ignition coil and or connections.

5. Faulty spark plug, oil or gas fouled, wrong heat range or service type, wrong gap, loose in the cylinder head, broken electrode or insulator.

6. Faulty spark plug cables, leaking or broken, internal damage.

7. Faulty ignition module, switch, CKP, MAP, CMP, sensor and or any connector in the ignition circuit could have corroded, loose, or broken pins/sockets

8. Burnt exhaust valve or air leak in the exhaust system.

For more information about your issue, please visit the websites below. Good luck and have a nice day.

RT 1100 backfire burp or

R1100rt back firing

1993 2000 BMW R1100RT R1100RS Service Manual Moto Data Pr BMW Motorcycle Parts Fiche OEM BMW Motorcycle Parts online 1970 present BMW

BMW Motorcycle Parts Fiche OEM BMW Motorcycle Parts online 1970 present BMW

Jun 13, 2013 | 1997 BMW R 1100 RT

1 Answer

Gas leaking from crankcase breather hose 750 honda aero 2005


Most likely cause is carb flooding due to sticking/leaking float valves...

Sep 22, 2012 | Honda Motorcycles

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1996 R1100RT


Hi, Anonymous and the usual suspects are:
1. Oil tank/pan overfilled.
2. Restricted oil return line to oil tank/pan.
3. Restricted breather operation.
4. Restricted oil filter.
5. Piston rings badly worn or broken.
6. Valve guides are worn and or seals worn, crushed, missing, or have come of guide and is pumping oil through the valve guide.
7. O-ring damaged or missing from oil pump at crankcase junction (also results in poor engine performance). For more information about your issue, please visit the websites below. Good luck and have a nice day.
http://www.bimmerfest.com/forums/showthread.php?t=540496
http://forums.bmwmoa.org/showthread.php?68530-RT-pumping-white-smoke-on-startup
1993 2000 BMW R1100RT R1100RS Service Manual Moto Data Pr BMW Motorcycle Parts Fiche OEM BMW Motorcycle Parts online 1970 present BMW
http://www.bmw-motorrad.com/us/en/index.html?content=http://www.bmw-motorrad.com/us/en/services/manuals/manuals_main.html¬rack=1

Mar 25, 2012 | 1996 BMW R 1100 RT

1 Answer

I washed my BMW R1100RS and now it does not want to start.


Hi, Hderasmus and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Discharged battery, check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
8. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, cable connections loose, or connected to the wrong cylinders.
10. Ignition timing incorrect due to a faulty ignition coil, ignition module or sensors (MAP, CMP, CKP, O2 and/or BAS).
11. Security alarm needs a reset.
For more information about your issue, please visit the websites below. Good luck and have a nice day.
BMW won start BAR Bay Area Riders Forum
bmw R1100RS wont start BMW RS Owners Club
1993 2000 BMW R1100RT R1100RS Service Manual Moto Data Project
BMW Motorcycle Parts Fiche OEM BMW Motorcycle Parts online 1970 present BMW
http://www.bmw-motorrad.com/us/en/index.html?content=http://www.bmw-motorrad.com/us/en/services/manuals/manuals_main.html¬rack=1

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2 Answers

What would cause gas and oil to come out of the air filter


Hello check your engine oil level to see if it is over filled.
Also if it is smell it to see if there is gas in the oil.
what some times happens with older motorcycles the fuel petcock o-ring or diaphram goes bad and fuel will weap into the cylinders and into the crankcase. raising the level and pushing into the air box via the crankcase breather hose.
Also check the vacuum line from the petcock if it has gas in it the diaphragm is leaking.


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96 Ninja zx6r Fuel Tank breather hose leaking gas


It sounds like that hose which runs fron the cap area (inside) the fuel tank to the back bottom is broke, if you take it to a Kawasaki dealer and have your dealer call Kawasaki there is a good chance it will get covered as long as the tank is damaged. Those hoses (metal) that run inside the fuel tak sometimes crack, there is really not way of fixing them unless you cut the tank open and then you would need to reweld it.

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I need a schematic for reconnecting feul lines to the tank


Hi, Cdstorm2002 sorry you can't find the first and best tool you ever bought for your BMW but despair not for a mere $10 you can download another one. For more information about your issue and free downloads that you need please visit the websites below. Good luck and have a nice day.Fuel tank plumbing
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https://www.tradebit.com/filesharing.php/search/0/bmw+r1100rs BMW Motorcycle Parts Fiche OEM BMW Motorcycle Parts online 1970 present BMW
http://www.bmw-motorrad.com/us/en/index.html?content=http://www.bmw-motorrad.com/us/en/services/manuals/manuals_main.html¬rack=1

Mar 11, 2009 | 1998 BMW R 1100 RS

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