Question about 1985 Yamaha FZ 750 FM (Japan)

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Backfiring Ive got a yamaha FZ 750 FM that has a back fire on one side. It usually happens when I let off the throttle, and before I break, when the engine is slowing down. Any suggestions.

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TRY DIFFERENT JETTING IN THE CARB I LIVE IN THE MOUNTIANS AND I FIND THAT THE ENGINE RUNS TO RICH CAUSE OF THE HIGH ELAVATION

Posted on Dec 01, 2008

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

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

I have a yamaha dirt bike that someone stole and


Check the igniter. Go back to the dealer and ask him to see one. Then go back and find it on your bike. Yamaha's usually have them under the seat, or left side. But I don't know exactly what year you have. Run the VIN on the frame under my tips and tricks is a web site that'll break it down for you.

Mar 14, 2010 | 1986 Yamaha FZ 750 AE (U.S.)

1 Answer

Wont idle


lol buddy if its not idling turn the idle screw in until it idles get back to me if no difference 2ee8c57.jpg

Sep 30, 2009 | 1986 Yamaha FZ 750 FM (Japan)

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)

1 Answer

Not runing


switch plug wires and see if the dead cylinder starts firing --if it does you need new wires

Nov 10, 2008 | 1985 Yamaha FZ 750 FN (Europe)

1 Answer

Yamaha FZ 750 FM


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.

Nov 10, 2008 | 1986 Yamaha FZ 750 FM (Japan)

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