Question about Yamaha Motorcycles

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I have a 97 Yamaha xj 900 the fuel guage does not work, How can I isolate wether its the sensor in the tank , electrical, or the guage.

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  • Expert
  • 157 Answers

The fuel sending unit is simply a variable resistance ground. There will be two wires to the unit.
One will have some measurable voltage and the other should have continunity to ground. If you ground the one with voltage the gague should go to the full reading. This would indicate a bad sending unit.

Posted on Jan 14, 2013

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SOURCE: Tyre pressures

Hi,

Offhand, the recommended tire pressure could be read on the tire itself. In most instances, this the tire pressure actually depends of:

  • rider's weight, with or without passenger;
  • rider's driving habits;
  • type of road where the bike is often ridden;
  • weather condition and ambient temperature.
Personally, I find a bit lower tire pressure on the front and standard or a bit harder at the back.

Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

Posted on Nov 21, 2008

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SOURCE: zx6r fuel tank

search google for kawasaki forums. you should join one or two and ask the same question. Someone there, who has direct experience, will know if it fits or not.

Posted on Apr 30, 2009

pugwash814
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SOURCE: can i fit a xj 900 engine into my xj650 maxim

i belive it is a straight swap, but there are some points to watch for, here is a discussion on just that...

http://xjbikes.com/Forums/viewtopic/p=22001.html

Posted on Jan 23, 2010

Testimonial: "Great, good lead very helpful.give me the solution."

SOURCE: Yamaha xj 900 s Front fork oil amount in cm

The forks hold 286ml or 9.67 US OZ of oil, best would be to use hydraulic oil.
Good Luck.

Posted on Jan 28, 2010

bschilz
  • 2049 Answers

SOURCE: Fuel tank capacity & range 97 yamaha royal star motorbike

4.8-gallon, teardrop-style fuel tank (including a 0.9-gallon reserve)
It has a cruising range of more than 170 miles (273.58848 k)

Posted on Mar 12, 2010

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1 Answer

1981 Yamaha XJ 650 not getting gas to engine


Hi, Terry I would do a compression check first and always check the fuel flow second 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.
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Oct 03, 2017 | 1981 Yamaha XJ 650

1 Answer

1981 Yamaha XJ650 engine not getting fuel


Hi, Terry 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. 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.
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Jul 24, 2017 | 1981 Yamaha XJ 650

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1995 Yamaha XJ 900 Diversion fork oil capacity


Hi, Sharon for this scenario you will need your service/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 please click on the blue links below. Good luck and have a wonderful day.
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Why am i getting no fuel 1985 yamaha maxim 700?


Hi, Anonymous 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.
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Jun 14, 2014 | 1985 Yamaha XJ 700 X Maxim

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1994 Yamaha diversion 900 cuts out after idle revs


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.
13. Multi carburetors not in sync
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Oct 10, 2013 | 2000 Yamaha XJ 900 S Diversion

1 Answer

2000 Yamaha XJ 900 S Diversion will not start


Hi, Peter 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 enrichner.
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. 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.
14. 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.
15. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
16. Spark plug cables in bad condition and shorting check for spark leakage in the dark, cable connections loose, or connected to the wrong cylinders.
17. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
18. Faulty neutral, clutch, kickstand safety switch.
19. Faulty fuel pump or fuse or relay.
20. A stuck bent or burnt valve.
21. Tilt sensor needs a reset.
22. Security system not disarming alarm needs a reset.
23. Check for engine trouble codes.
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1 Answer

My 1985 xj900 fuel tank is leaking seven holes on tank is there any other tank that can be used can't find second hand tank.


i had the same problem and had a custom tank
made coast a little but will never rust .
made out of alloy

Apr 05, 2011 | 1985 Yamaha XJ 900 F

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.
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Apr 02, 2011 | 1985 Yamaha XJ 700 X Maxim

1 Answer

1994 Yamaha XJ 900 F replace fuel sensor


Hi, Blackalice for this scenario you will need your service/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 please click on the blue links below. Good luck and have a wonderful day.
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Jul 29, 2009 | 1994 Yamaha XJ 900 F

1 Answer

97 Silhouette Fuel guage not working correctly


drop fuel tank. if guage moves all around its probably the fuel level sensor on fuel pump assembly in the fuel tank. If the guage stay's in one spot its the guage , replace instrument cluster assembly. you can take just the glass off the cluster and move the fuel guage needle and it will work (if stuck) but for how long? The wires to the guage come from the sending unit to the power train control module to the instrument cluster. pray its not in the wiring.

Sep 14, 2008 | 2000 Oldsmobile Silhouette

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