Question about 2001 Yamaha YZF-R1

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On a 2001 r1 where do the float chamber air vent hoses run to.

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  • Yamaha Master
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Hi, Tom usually the ground for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
http://www.r1-forum.com/forums/101-98-99-r1-mechanical-help/197293-fuel-leak.html
Carbs leaking Here is how to fix it
2000 2001 Yamaha YZF R1 Service Manual R1 Moto Data Project
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Posted on Sep 02, 2016

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Posted on Jan 02, 2017

  • 128 Answers

SOURCE: After cleaning my carbs.. just the bowls and carb

Well, a couple things may be wrong.
1) debris could be lodged under the needle valve. Remove the float by gently slideing the float pin out, the needle will either slide out with the float or remain in the seat and a pair of needle nose pliers will help to retreave it. clean the seat and inspect the needle valve for damage.
*note that even the smalles debris can keep the needle from seating so take care during reassembly*

2)depending on the type of carb cleaner used, and the exact type of needle valve in your carbs, the needle valves may have been dammaged during the cleaning. Some carb cleaners can "eat" neoprene or rubber components in carbs. It is always best to fully disassemble them before cleaning, if you are not confident in your ability, have a pro do it for you.

The solution for this is to remove the needle valve as above, and inspect the needle and float for damage. **If in doubt replace the needle valve**

Good luck.

Posted on Mar 25, 2010

heimlich
  • 1978 Answers

SOURCE: After cleaning my carbs.. just the bowls and carb

You probably have a stuck float needle or a float needle that missed the hole check the leaking carb again. It could be a piece of dirt on just the one float needle or worst case scenario a sunk float(you have to test them by floating them in a cup of gas.).Note: black plastic/foam style floats are susceptible to saturation sinking when used in ethanol fuel (gasohol). If this happens you have to replace the float.

Posted on May 16, 2010

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1 Answer

Just replaced my throttle cable on my 05 yamaha r1 and it starts fine but it won't stay running


Hi, Melinda unless you tampered with the idle or A/F screw there is no reason your stalling and the throttle cable are connected that being said stalling at idle is usually a carburetor issue and the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
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2004 2005 Yamaha YZF R1 Service Manual R1 Moto Data Project
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http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Aug 21, 2016 | Yamaha Motorcycles

1 Answer

My 2001 yzf r1 will start but only when I have the choke on and once it's nice and warmed up and I give it a twist on the throttle it cuts off. Can someone help me out here please


Hi, James and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Float needle and seat sticking.
5. Float level too low.
6. Carburetor bowl vent line clogged/blocked/pinched.
7. Idle adjusting ***** set too low.
8. Air/fuel mixture ***** set too lean.
9. Idle port, transfer ports, slow air jet clogged.
10. Slow fuel jet clogged.
For more information about your issue and valuable free downloads that you will need please visit the websites below. Good luck and have a nice day.
http://www.r1-forum.com/forums/102-00-01-r1-mechanical-help/121159-adjust-choke-cable-2001-r1.html
Motorcycle Message Board Motorcycle USA
Wont run without the choke yz450f 03
http://www.yamaha-motor.com/assets/service/manuals/2001/lit-11626-14-35_76.pdf
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Mar 13, 2016 | Motorcycles

1 Answer

I have gas coming out air vent hose, gas in the chamber going into the air filter right before were the air filters are? Thanks ahead of time u guys do a great job answering u work really hard.AL.


Hi Al, and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
For more information about your issue please visit the websites below. Good luck and have nice a day.
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1 Answer

2002 Yamaha r1 bike starts but won't stay running


Hi, Anonymous and the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
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https://r1videos.files.wordpress.com/2011/04/2002-2003-yamaha-r1-service-manual.pdf
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http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Nov 11, 2013 | 2007 Yamaha YZF-R1

1 Answer

2004 r1 idels rough and dies if i give it gas?


Hi, Quentin and the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
http://www.r1-forum.com/forums/104-04-06-r1-mechanical-help/98831-2004-r1-cuts-out-update.html
Bike dies when give it gas
2004 2005 Yamaha YZF R1 Service Manual R1 Moto Data Project
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Mar 22, 2013 | 2004 Yamaha YZF-R1

1 Answer

2001 yamaha r1 carbs


Hi, Khourimitche and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
http://www.r1-forum.com/forums/101-98-99-r1-mechanical-help/300120-carb-overflowing-gas.html
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2000 2001 Yamaha YZF R1 Service Manual R1 Moto Data Project
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Jun 21, 2012 | 2001 Yamaha YZF-R1

1 Answer

My 1999 yamaha r1 bogs down in rpms and shuts off when i go to take off


Hi, Anonymous and the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
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http://www.r1-forum.com/forums/101-98-99-r1-mechanical-help/285146-bike-dies-when-1st-gear-engaged.html
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OEM parts for Yamaha
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1 Answer

Yamaha r1 2000 leaking fuel from breather pipes and is spitting at low revs, cutting out now.


Hi, Anonymous and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
http://www.r1-forum.com/forums/101-98-99-r1-mechanical-help/197293-fuel-leak.html
http://www.r6messagenet.com/forums/r6-maintenance-technical/23989-fuel-constantly-leaking-out-overflow-tube.html
2000 2001 Yamaha YZF R1 Service Manual R1 Moto Data Project
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

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1 Answer

When starting from cold ticks over ok .once warm if i then stop and restart it stalls at tickover


Hi, Tom and the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
http://www.r1-forum.com/forums/102-00-01-r1-mechanical-help/178565-wont-idle.html
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OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Dec 23, 2009 | 2008 Yamaha YZF-R1

1 Answer

2002 R1 stalls at idle


Hi, Nigel_46 and the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
13. Multi carburetors not in sync.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Intermittent rough idle then dies
2002 YZF R1 Idle Problem
Yamaha YZF R1P Service Manual
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Yamaha YZF R1P Owner Manual

Aug 14, 2009 | 2002 Yamaha YZF-R1

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