Question about 1985 Yamaha FZ 750 FM (Japan)

2 Answers

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.

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

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

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 2,336 Answers

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

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

Hi i have a yamaha fz 750 1987. there is no srark from either coils plus the bike was parked up for 2 years, can anyone help ?


its possible the cdi unit has failed or the hd leads/spark caps might be at fault, i had the same problem on a 1990 zzr600 it turned out to be spark caps where ao to high a resistance and causing no spark to pass. try this first and if still no spark id go with another cdi unit. hope this helps

Nov 10, 2009 | 1986 Yamaha FZ 750 FM (Japan)

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)

Not finding what you are looking for?
1985 Yamaha FZ 750 FM (Japan) Logo

Related Topics:

363 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Experts

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1128 Answers

D. E. Hev

Level 3 Expert

1059 Answers

mikeuk

Level 2 Expert

61 Answers

Are you a Yamaha Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...