20 Most Recent 2004 Yamaha V Star 1100 Custom - Page 5 Questions & Answers


It should be possible to test the pump for proper function - there should be no need to replace it hoping for a cure.

A fuel pump should suck at one end and blow at the other and this can be measured using appropriate gauges and if those measurements are satisfactory the amount of fuel pumped can be measured...

Such tests are fairly routine on wheeled vehicles and not only are they a valuable aid to correct diagnosis they remove all doubt when warranty work is involved.

Yamaha... | Answered on Oct 27, 2019


Contact your supplier, they should give support to you.
For example, if users who buy diesel generator set with us, if they have maintenance question or fault, we will tell them the solutions.
This is suport website: www.dieselgeneratortech.com

Yamaha... | Answered on Oct 26, 2019


If you investigate on the sides of the tires there is a suggested air pressure setting that produces the lowest amount of rolling resistance for the best fuel mileage

Yamaha... | Answered on Oct 25, 2019


The only way it will run backwards is the timing is incorrect. If you had the flywheel or anything in the engine apart relating to the ignition pickup coils, they didnt get put back in correctly.
It's possible something is loose, and sheared the flywheel key. 2 cycle will run regardless of direction due to no valves.

Yamaha... | Answered on Oct 25, 2019


Hi, William all bulbs must be 6-volts, for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Hyosung, despair not, for a mere $20 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.
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Yamaha... | Answered on Oct 22, 2019


Hi, Toni 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.
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Yamaha Xt 550 Wiring Diagram
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Yamaha... | Answered on Oct 15, 2019


Hi, Zakaria the answer to this question is way above my pay grade for this situation, I would call or visit my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts enquiry.
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.
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Yamaha... | Answered on Oct 11, 2019


Hi, Douglas external oil deposits fall into 3 categories:
1. WEEPAGE is the oil that is sweated pass gaskets, seals, o-rings, and crankcase seams, it's covered by dry dust and is normal for older engines with lots of miles, no repair is necessary.
2. SEEPAGE is the same as weepage except the deposit is wet and confines itself to a specific area, the repair is optional depending on the owner's cleanliness criteria, the deposit location and the weight of his bag of "DRACHMA"
3. LEAKAGE is the same as seepage except it is enough to drop to the ground leaving a spot. Repair as necessary.
To find the source of your oil leak, start at the point where you see oil and trace its path going up and forward, blowing baby powder from the palm of your hand will help in those difficult to see areas if there is too much oil present then buy a spray can of engine degreaser apply it to the affected area then rinse off with a pressure wand or garden hose, use compressed air to blow off excess water or just let it drip dry, take your bike for a 15 minute ride and check for the leak.
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://mechanics.stackexchange.com/questions/5785/how-to-find-and-fix-an-oil-leak-on-a-yamaha-scooter
https://www.youtube.com/watch?v=FgtAMIOps_8
https://www.manualslib.com/manual/983364/Yamaha-Xc125.html
https://www.partsfish.com/page/oem-parts-for-yamaha
https://www.manualslib.com/manual/597176/Yamaha-Cygnus-X-Xc125.html

Yamaha... | Answered on Oct 05, 2019


Hi, Shazngaz35 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. Vacuum line from the petcock to intake manifold cracked.
5. Float needle and seat sticking.
6. Float level too low.
7. Carburetor bowl vent line clogged/blocked/pinched.
8. Idle adjusting screw set too low.
9. Air/fuel mixture screw set too lean.
10. Idle port, transfer ports, slow air jet clogged.
11. Slow fuel jet clogged.
12. Faulty fuel pump.
13. Faulty auto choke or wiring connection.
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://thumpertalk.com/forums/topic/291948-bike-only-runs-with-choke-on/
https://www.youtube.com/watch?v=sK8t3-XI-FE
https://www.manualslib.com/manual/591730/Yamaha-Pw80t.html
https://www.partsfish.com/page/oem-parts-for-yamaha
http://www.yamahaownershandbook.com.au/?r=0

Yamaha... | Answered on Sep 28, 2019


Hi, Anonymous and the usual suspects are:
1. Fuel tank empty.
2. The fuel tank has old dead gas.
3. Fuel tank bottom contaminated with ethanol sludge, dirt, water, rust, etc.
4. Fuel supply valve/petcock turned off.
5. Fouled spark plugs.
6. Engine flooded as a result of overuse of the choke.
7. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
8. Fuel valve/petcock or filter clogged.
9. Fuel line to carburetor or throttle body pinched, kinked or blocked.
10. Carburetor float stuck.
11. Fuel injectors clogged.
12. Fuel injectors stuck open.
13. Quick disconnect check ball stuck.
14. Compression below 75 PSI.
15. A stuck-bent-burnt valve.
16. Improper valve clearance (too tight)
17. 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 cursory 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.
18. 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.
19. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
20. Spark plug cables in bad condition and shorting check for spark leakage in the dark, cable connections are loose or connected to the wrong cylinders.
21. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
22. Faulty neutral, clutch, kickstand safety switch.
23. Faulty fuel pump or fuse or relay.
24. Faulty or corroded run/stop switch.
25. Tilt sensor needs a reset.
26. Security system not disarming alarm needs a reset.
27. Check for engine trouble codes.
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.pitbikeclub.co.uk/showthread.php?t=27564
https://www.motorcyclecruiser.com/what-to-do-if-your-motorcycle-doesnt-start
https://www.pitbikeclub.co.uk/showthread.php?t=28477
https://www.partsfish.com/page/oem-parts-for-yamaha
https://www.manualslib.com/manual/611378/Yamaha-Pw50-V.html#product-PW50

Yamaha... | Answered on Sep 28, 2019


4. Air leaks: If excessive air leaks into the intake ahead of the impeller, the jet unit will "slip". Possible sources of air leaks are though a faulty gland seal, which is usually accompanied by a static water leak into the boat when standing idle.
So if the gland is worn out and leaking into the boat with the engine off, it can also suck air when accelerating on to plane, and if this happens, then the thrust is reduced dramatically. Air can also be introduced into the system via the inspection cover, so you will want to make sure the cover is tight.

https://www.google.com/search?safe=off&rlz=1C1QJDB_enCA643CA644&sxsrf=ACYBGNRVe0tQKMAxqCrcTR1kSlkDN27UCg%3A1569678054788&ei=5mKPXZPaL9COggeIjojoCQ&q=Yamaha+jet+boat+Jet+drive+sucking+air

Yamaha... | Answered on Sep 28, 2019


Hi, James for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Yamaha, despair not, for a mere $15 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.
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https://www.tradebit.com/filedetail.php/6902433-download-now-yamaha-mx100-mx-100-service $15
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Yamaha... | Answered on Sep 23, 2019


Hi, Sanjay for this scenario you will need your service manual, 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.
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Yamaha... | Answered on Sep 23, 2019


Hi, Billy for this scenario you will need your service manual, 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.
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https://www.yamahamotorsports.com/motorsports/owners-manuals

Yamaha... | Answered on Sep 23, 2019


Hi, Tandy and the usual suspects are:
1. Spark plugs in bad condition or have an improper gap or are partially fouled.
2. Spark plug cables in bad condition.
3. Battery damaged or nearly discharged, should have 12.5 volts.
4. 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.
5. Throttle controls not adjusted correctly.
6. Water or dirt in the fuel system.
7. Water or dirt in the carburetor.
8. Intake air leak.
9. Fuel tank vent hose and vapor valve plugged, or the fuel line is closed off, restricting fuel flow.
10. Choke valve inoperative.
11. Engine lubricant to heavy (winter operation).
12. Ignition is not functioning properly (possible sensor failure).
13. Faulty ignition coil.
14. Valves sticking.
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.facebook.com/171109872920925/photos/a.238194019545843/374609199237657/?type=1&theater
https://mechanics.stackexchange.com/questions/5643/motorcycle-with-efi-not-starting-well
https://usermanual.wiki/Document/yamahat115servicemanualuoezmze.582485069.pdf
https://www.partsfish.com/page/oem-parts-for-yamaha
http://www.yamahaownershandbook.com.au/?r=0

Yamaha... | Answered on Sep 23, 2019


Hi, Rhys for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Mikilon, 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.
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http://www.classiccycles.org/1852/597985.html
http://ironbrothersmc.com/motors/Yamaha/Yamaha_XV_V-Twins_81-94.pdf
https://www.partsfish.com/page/oem-parts-for-yamaha
https://mybikemanuals.com/yamaha/yamaha-xv-owners-manuals/

Yamaha... | Answered on Sep 23, 2019


Hi, Arthur and the usual suspects are:
1. Fouled spark plugs.
2. 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.
3. 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.
4. Loose connection at ignition coil or plug between ignition sensor and module.
5. Spark plug cables in bad condition, shorting/leaking, spark plug cable connections loose check for spark leakage in the dark.
6. A faulty ignition coil or electronic control module.
7. Faulty pulse coil.
8. Faulty CKP, CMP, or BAS sensor.
9. Faulty ignition switch.
10. Faulty run/off switch
11. Tilt sensor needs a reset.
12. Security alarm failing to disarm needs reset
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://motorcyclistlifestyle.com/hotwire-a-motorcycle/
https://www.youtube.com/watch?v=JRD58qqmRWE
http://www.xjcd.org/book/export/html/77
https://www.partsfish.com/page/oem-parts-for-yamaha
https://www.manualslib.com/manual/898875/Yamaha-Xj600sk.html#product-Seca%20II

Yamaha... | Answered on Sep 23, 2019


It appears to be a part of the battery. When you look at the battery there is a plug attached to it.

Yamaha... | Answered on Sep 19, 2019

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