Question about 2010 Yamaha Cygnus X

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2010 Yamaha Cygnus vacuum and fuel line routing

What are the 3 tubes for leading from my Yamaha Cygnus vac petcock for

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  • Yamaha Master
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Hi, Roy for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
2010 Yamaha Cygnus vacuum and fuel line routing Google Search
Fuel and Vac Line Tutorial
Yamaha XC125 Service Manual
OEM parts for Yamaha
YAMAHA CYGNUS XC125 Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Posted on Oct 11, 2017

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Posted on Jan 02, 2017

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colin butcher

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SOURCE: I am not geting a spark on my yamaha cygnus, there

check to see if the magnito has come loose, although you would hear it if it was, maybe the points need replacing

Posted on Jan 02, 2010

David

  • 49 Answers

SOURCE: my yamaha cygnus x 125 (2004) scooter back fires

The motor might have jumped timing or bad spark plug or both mabe even the float is jammed

Posted on Mar 30, 2014

ANTISPAMMER

  • 33381 Answers

SOURCE: I have a vacuum petcock,isn't the large tube for the gas,and small for vacuum on 1981 Yamaha xj650?

on my kawasaki it is. no gas will flow to carbs if you hook them up wrong

Posted on Jul 24, 2017

ANTISPAMMER

  • 33381 Answers

SOURCE: I have a vacuum petcock,where are the proper tubes hookup-1981 Yamaha xj650?

look at this video https://www.youtube.com/watch?v=GojvH7TgHMg

Posted on Jul 24, 2017

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1 Answer

2008 Yamaha Cygnus quits running while riding


Hi, Anonymous and the usual suspects are:
1. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
2. Failed alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, stator, magneto, ignition/electronic module.
7. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Faulty neutral, side stand or clutch lever safety switch.
10. Faulty or corroded kill switch.
11. Accelerator pump damaged or not working.
12. Water or dirt in the fuel system, carburetor or filter.
13. Restricted, blocked or kinked fuel line.
14. Fuel tank empty.
15. The gas cap is not venting properly or fuel tank venting system blocked, loosen gas cap and go for a test ride.
16. A failed fuel pump, pressure regulator and or fuel injectors.
17. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
18. Needle and seat stuck closed in the float bowl.
19. Petcock clogged or damaged.
20. Lean angle switch is faulty or needs adjustment.
21. Catastrophic engine failure, perform a compression test.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://groups.google.com/forum/#!topic/alt.scooter/jwRUQITS9lA Scooter Troubleshooting Scooter won run All about Scooters
Yamaha XC125 Service Manual
https://www.partsfish.com/page/oem-parts-for-yamaha
Yamaha Cygnus XC125 Owner Manual

Aug 19, 2018 | 2008 Yamaha CygnusX

1 Answer

Hooking up the gas tank the gas line to petcox the vac line to petcox what is the other line what do it go to this is on a 1982 gs650 suziki


The other line goes to the fuel gauge overflow right next to the petcock vacuum line on the tank. Big nipple on petcock goes to fuel line leading between carb 2 and 3. Small nipple on petcock goes to the brass nipple on the front of carb number 2. The other hose hooks up to the nipple coming from the fuel sending unit and routes down below the battery and ends. It's there in case the fuel sending unit leaks the hose will route the gasoline away from a hot engine instead of pouring out right on top of it. The nipple to the fuel sending unit should be positioned pointing directly at the petcock on the bottom of the tank. In case you don't know what I mean by sending unit it's the big round circle on the left side of the bottom of the tank with 2 wires coming from it.

Jan 29, 2014 | 1982 Suzuki GS 650 GT

1 Answer

My Cygnus wont start after sitting in the sun


Hi, Anonymous 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. Fuel line to carburetor or throttle body pinched or kinked.
8. Carburetor float stuck.
9. Fuel injectors clogged.
10. Severely discharged or damaged battery, you need 12.5 volts or better and be able to pass a load test if necessary.
11. 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.
12. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and CDI box.
Spark plug cables in bad condition and shorting check for leakage in the dark, cable connections loose, or connected to the wrong cylinders.
13. Ignition timing incorrect due to a faulty MAP, CKP, O2, TPS, sensors.
14. Faulty neutral, clutch lever, or kickstand safety switch.
15. Faulty fuel pump or fuse or relay.
16. Faulty CDI box.
17. A stuck bent or burnt valve.
18. Tip over sensor needs a reset.
19. Check for engine trouble codes.
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.
Yamaha Cygnus Wont Start
http://www.sheffieldforum.co.uk/archive/index.php/t-923184.html
Yamaha XC125 Service Manual
OEM parts for Yamaha
Yamaha Cygnus XC125 Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Nov 10, 2013 | 2008 Yamaha CygnusX

1 Answer

Fuel line routing from tank to petcock,from petcock to fuel pump


Hi, Anonymous 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.
yamaha xv535 Virago Fuel line routing Google Search
1983 Yamaha XV500K Fuel Vacuum routing
Yamaha XV 535 DX Virago Service Manual
OEM parts for Yamaha
http://www.starmotorcycles.com/assets/service/manuals/2000/LIT-11626-13-16_110.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


Dec 13, 2012 | 1988 Yamaha XV 535 Virago DX

1 Answer

2007 Yamaha CygnusX 125 poor high-speed performance


Hi, Anonymous and the usual suspects are:
1. Inlet system air leak.
2. Enrichener valve not seated or leaking.
3. Damaged or restricted fuel tank vent system.
4. Restricted fuel supply tract.
5. Dirty or damaged air cleaner element.
6. Plugged bowl vent or overflow.
7. Worn or damaged needle or needle jet.
8. Vacuum piston assembly malfunction.
9. Loose or plugged main jets or passages.
10. Improper float level.
11. Accelerator pumps inoperative.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.o2w.co.uk/tagforum/viewtopic.php?t=6817
YAMAHA CYGNUS 2007 FUEL PUMP FAULT DIAGNOSTICS AND TEAR DOWN PART 1
Yamaha XC125 Service Manual
https://www.partsfish.com/page/oem-parts-for-yamaha
Yamaha Cygnus XC125 Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


Jan 08, 2018 | 2007 Yamaha CygnusX

1 Answer

Yamaha Cygnus has petrol problem Has spark fuel not getting to carburetor


Hi, Aaronslocks always check fuel flow first to isolate the problem area otherwise the usual suspects are:
1. Fuel tank empty.
2. Fuel cap or fuel tank not venting properly.
3. Fuel filter clogged with rust or dirt.
4. Vacuum line to fuel valve clogged, cracked, pinched, bent, broken, or missing*
5. Faulty vacuum line switch/relay
6. Petcock clogged or diaphragm cracked, cut or torn*
6. Fuel line from the fuel valve/petcock to the carburetor clogged, cracked, pinched, bent, broken, or missing.
7. Vacuum lines to the mechanical fuel pump clogged, cracked, pinched, bent, broken or missing*
8. Faulty electric fuel pump and or wiring*
9. Fuel line from the fuel pump to the carburetor clogged, cracked, pinched, bent, broken, or missing*
10. Carburetor inlet fitting clogged.
11. Carburetor float and or needle and seat stuck.
12. Carburetor overflow line clogged, pinched, or bent.
13. Vacuum line from carburetor deacceleration valve not zipped tied*
* If equipped or applicable.
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 wonderful day.
Fuel not getting in carb
https://traxxas.com/forums/showthread.php?366591-Fuel-not-getting-to-carb
Yamaha XC125 Service Manual
OEM parts for Yamaha
YAMAHA CYGNUS XC125 Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Mar 16, 2012 | 2006 Yamaha CygnusX

1 Answer

FUEL AND VAC LINE ROUTING FOR A FJ1100 YAMAHA


Hi, Anonymous 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 $10 you can download another one.
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.
1985 FJ1100 fuel and vacuum line routing Google Search
Fuel lines vacuum lines for 84 fj 1100
Yamaha FJ1100 FJ1200 1984 1993 Workshop Service Manual PDF Download... $10
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-fj-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Feb 23, 2012 | 1985 Yamaha FJ 1100

1 Answer

2010 Yamaha C3 not getting fuel


Hi, Assinline always check the fuel flow first to isolate the problem area otherwise the usual suspects are:
1. Fuel tank empty.
2. Fuel cap or fuel tank not venting properly.
3. Fuel filter clogged with rust or dirt.
4. Vacuum line to fuel valve clogged, cracked, pinched, bent, broken, or missing*
5. Faulty vacuum line switch/relay
6. Petcock clogged or diaphragm cracked, cut or torn*
6. Fuel line from the fuel valve/petcock to the carburetor clogged, cracked, pinched, bent, broken, or missing.
7. Vacuum lines to the mechanical fuel pump clogged, cracked, pinched, bent, broken or missing*
8. Faulty electric fuel pump and or wiring*
9. Fuel line from the fuel pump to the carburetor clogged, cracked, pinched, bent, broken, or missing*
10. Carburetor inlet fitting clogged.
11. Carburetor float and or needle and seat stuck.
12. Carburetor overflow line clogged, pinched, or bent.
13. Vacuum line from carburetor deacceleration valve not zipped tied*
* If equipped or applicable.
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 wonderful day.
http://www.provoscooter.com/forum/archive/index.php/t-18597.html
Yamana C3 XF50X not starting
Yamaha XF50W Service Manual
OEM parts for Yamaha
Yamaha XF50E Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Jun 18, 2011 | 2010 Yamaha C3

1 Answer

Its a 1985 Yamaha xj700 maxim that has a problem with the fuel and vacuum line, from the fuel tank to carburetors and drain line diagrams


Hi, Sevensons7 always check fuel flow first to isolate the problem area otherwise the usual suspects are:
1. Fuel tank empty.
2. Fuel cap or fuel tank not venting properly.
3. Fuel filter clogged with rust or dirt.
4. Fuel valve/petcock not in the on or reserve position.
5. Vacuum line to fuel valve cracked, broken, pinched, or missing*
6. Fuel valve/petcock clogged or diaphragm cracked, cut or torn*
7. Fuel line from the fuel valve to the carburetor or fuel pump clogged, cracked, pinched, bent, broken, or missing.
8. Fuel pump not working*
9. Fuel line touching cylinder or head causing fuel to boil and vapor lock, repair by rerouting and wrapping line with convoluted tubing.
10. Carburetor inlet clogged.
11. Carburetor float or needle and seat stuck.
12. Carburetor not venting properly overflow line or bowl fitting clogged, pinched, or bent.
* If equipped or applicable.
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.
Yamaha XJ 700 Fuel and vacuum line diagram Google Search
petcock fuel yamaha maxim xj700
Yamaha XJ700N Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-xj-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


Apr 02, 2011 | 1985 Yamaha XJ 700 X Maxim

1 Answer

What is the proper way to hook up (4 fuel line) the return and send fuel line hoses for a 1982 Yamaha -XZ-550 Vision Motorcycle.


The '82 1/4" fuel line goes from the petcock to the carb....(install an in-line fuel filter between them)...with a vacuum line going from the petcock to the vacuum off take, located on the front carb rubber manifold, (the smaller of the two brass tubes!!).
You should also go to www.ridersofvision.net A web site for Yamaha Vision owners...

Tiger.

Oct 01, 2010 | 1982 Yamaha XZ 550

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