Question about 1986 Yamaha FZ 750 FM (Japan)

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Yamaha FZ 750 FM

I have an oooooold yamaha that will start, but it dies shortly after. To keep it running I have to keep the enigne reved, and even that doesn't last long. Could this be a carb problem? I was thinking of giving it a good cleaning. I will also check all the fuel lines. I took out the air filter just to see if that was doing anything.

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It sounds like the idle screw is not set right., but if your going to clean the carbs anywyas. Clean them, sync them and see how she runs, if still doing the same thing the idle screw needs to be adjusted. The RPMs should be between 800 to 1200 while idling. If your bike is an older on it will most likely sit around the 1200 rpm at idle.

Posted on Nov 10, 2008

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Posted on Jan 02, 2017

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1 Answer

Engine torque specs 1985 fz 750


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 links below. Good luck and have a nice day.
http://www.edubs.net/bikestuff/sv650/sv650TorqueSpecs.pdf
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http://mybikemanuals.com/yamaha/yamaha-fz-owners-manuals

May 17, 2014 | 1985 Yamaha FZ 750 FM (Japan)

1 Answer

1983 FZ 750 high idle


Hi, Stevemagney and the usual suspects are:
1. Throttle cables improperly adjusted, pinched or need lubrication.
2. Idle adjusting screw needs to be backed off.
4. Air fuel mixture adjusted too lean start with 2 full turns.
5. Intake system air leak.
6. Fast idle choke ramp is not releasing.
7. Broken throttle return spring.
8. Damaged diaphragm or slide.
9. Faulty MAP, TPS, ATS, O2, sensors or wiring/connector
10. Multi carburetors not in sync.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links blue below. Good luck and have a wonderful day.
FZ750 Super High Idle Problem
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1985 1988 YAMAHA Genesis FZ750 Service Manual Repair Manuals AND Owners... $10 cheap
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-fz-owners-manuals

Mar 25, 2011 | 1986 Yamaha FZ 750 FM (Japan)

1 Answer

Why does my Yamaha Fazer 750 1986 revs high on idle when warm


Hi, Rayevans2006 and the usual suspects are:
1. Throttle cables improperly adjusted, pinched or need lubrication.
2. Idle adjusting screw needs to be backed off.
4. Air fuel mixture adjusted too lean start with 2 full turns.
5. Intake system air leak.
6. Fast idle choke ramp is not releasing.
7. Broken throttle return spring.
8. Damaged diaphragm or slide.
9. Faulty MAP, TPS, ATS, O2, sensors or wiring/connector
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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YAMAHA FZ700 FZ750 FZX700 FAZER SHOP MANUAL 1985 1988 Download Manuals... $10
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-fz-owners-manuals

Aug 08, 2010 | 1986 Yamaha FZ 750 FM (Japan)

1 Answer

How do the fuel lines route on my 1986 fz 750 I got the bike and they were disconected


Your in luck... You can route fuel lines any way you want just keep them clear of heat sources and any where they may kink. If need be, you can even get longer hose to re-route. Keep it as short as possible and you'll be fine.

Jul 27, 2009 | 1986 Yamaha FZ 750 AE (U.S.)

1 Answer

I have a 1988 yamaha 750


Easy to find! Just phone your local Yamaha dealer with the VIN numbers and they can give you all the information you want. In the off chance the dealer is too busy or just doesn't want to please a customer, just Google ' yamaha motorcycle texas ' and you will have plenty of other dealers you can call. Use your own state or any state in the Google search.

Please rate this answer. Thanks

Apr 02, 2009 | 1985 Yamaha FZ 750 FM (Japan)

1 Answer

Runs at 60 to 7 000 rpm leaks gass from drffinet spots


Hi Lakeyd,

This site has all te answer to your question and the bike inquestion, plz visit it www.xjbikes.com

All the best!.

Knight.(YAMAHA Seca XJ750A 1981)

Feb 09, 2009 | 1985 Yamaha FZ 750 FM (Japan)

2 Answers

Backfiring


Sounds like fuel is still entering one cylinder after releasing the throttle. Time to have your carbs cleaned as well as synchronized. Good Luck!!!

Nov 10, 2008 | 1985 Yamaha FZ 750 FM (Japan)

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