Question about 1993 Yamaha FZ 750 KT (Europe)

1 Answer

Charging system When my bike (Yam FZ 750 KT ) is idling, I get 13.26 volts on the battery. Now the thing is Im using a car-battery to run my system... my motorcycle battery was crumb.. and I wanted to get the bike up and running first. Apparently the stator and rotor resistances are fine. Now is the lower voltage only because its trying to charge a larger capacity battery... or will I now have to check the rectifier and the regulator??? I had the bike idling for about 20 minutes on the car battery, and the voltage on the car battery did not drop ... so Im assuming that some charge is trickling through... any guesses as to what the problem might be??? While the bike was running, I did momentarily disconnect the battery from the charging system... and the idling speed promptly increased.. so some load was definitely taken off the charging system. Also I do believe that the charging system on an FZ 750 KT is the non-permanent magnet type alternator.. so current is definitely drawn from the battery to excite the rotor coil.

Posted by on

  • Anonymous Mar 25, 2014

    Battery does not charge when bike is running

×

Ad

1 Answer

  • 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

I think 13.26 is very good for a bike of it's age. Especially charging a bigger cell battery such as a car battery! I wouldn't worry to much about your charging system looks to be doing just fine. almost sounds like your bike needs to be taken out for a Relief of sitting run.

Posted on Nov 10, 2008

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

How do you adjust the idle on an 82 virago 750?


Hi, Anonymous 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. Float needle and seat sticking.
5. Float level too low.
6. Carburetor bowl vent line clogged/blocked/pinched.
7. Idle adjusting screw set too low.
8. Air/fuel mixture screw set too lean.
9. Idle port, transfer ports, slow air jet clogged.
10. Slow fuel jet clogged.
11. Faulty fuel pump.
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.
1986 Yamaha Fazer 700 KatRiders com
Dirt Rider Magazine
Yamaha FZ FZX750 Service Manual 1986 1987 Download Manuals Technical
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-fz-owners-manuals

Jul 06, 2014 | 1987 Yamaha FZX 750

1 Answer

THE BIKE WONT KEEP A CHARGE


Remove the seat to access the battery.
A loose battery connection will prevent charging, Tighten if loose.
If tight, start the bike.
Use a multimeter set on d/c volts or just a volt meter.
Hook red to positive and black to negative.
should read 12.50 volts - 13.50 volts at idle.
Anything under 12.50 means not charging at idle.
Rev motor to 2000 rpm. the meter should read 13.50 - 14.8. If the volts do not change, then your bike is not charging, Anything Higher than 15.0 means that your bike is overcharging, which usully fries the battery and blows the headlight fuse and/or main fuse.

If over/undercharging, this means that the voltage regulator is bad.
Before you buy another one, make sure the one you have is plugged in all the way and that the connectors are clean.
I had a GSXR 750 that sat for a while and i had to clean every connector on the bike before it would run/operate like it should, so a dirty or loose connection should be checked first.
Saves you a lot of money too because voltage regulators are usually over $100.

If you do not ride for months at a time, your battery will discharge over time.
a battery tender or battery charger is needed to keep the battery charged when the bike is not in use. Motorcycle batteries are not like car batteries, that seem to last forever. 4-5 years is about all you'll get out of a motorcycle battery on a motorcycle that is ridden alot.
On a motorcycle that is barely ridden, won't last much more than 2 years if your lucky.
Hope this information was helpful
Best regards
Big Al

May 28, 2011 | 2000 Suzuki GSX-R 750

3 Answers

Went i star the bike i open the choke to warm the bike after a few sec close the shock the bike die runs only with the choke open what can be


This is a classic example of a clogged pilot jet in the carburetor. You need to clean the carburetor circuits and jets.

Jun 25, 2010 | Motorcycles

1 Answer

My yam fz 750 fm has no spark at all,the bike was parked up for 2 years was ok before ?


this is likley to be a low tenshion feed problem, like points or switch,,its some thing simpel thats stoping the spark, take the points out and clean them up on sand paper checking that they open and close and are clean,check the coiles that the whire is clean and tight, and all the wiring loom if you can also the ig/switch, give it a swill with switch cleaner it may have croshion in it by now, then strip the carbs and clean all the jets, as i bet there all blocked up as well by now,,, flush out the fule tank with fresh fule and use a good fully charged battery to start up on, hope this helps good luck,

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

1 Answer

Does the yamaha fz 750 use transmission fluid or just the motro oil


The FZ750 uses the same oil for the transmission and crankshaft and top end. All oil is stored in the oil pan below the transmission and distributed throughout the engine by an oil pump.
If you are asking if you need to use different oil for the transmission than the engine, no.
If the oil level is correct for the transmission, it is correct for the whole engine.

Oct 04, 2009 | 1992 Yamaha FZ 750 KT (Europe)

1 Answer

Can you jump a 12 volt suxuki gs750 with a car battery pack charger or jump it with a car?


yes, but you must do it at the battery under the seat, be very carefull to not cross the jumper cables, if u do u will destroy the electical system, another thing DON'T run the bike with a dead battery, u will burn out the alternator stator and the voltage regualator very quickly, it is a very poor design, have owned many suzuki bikes since the 70's, had this very same bike, then bought a GS1100, same problems with charing system, they corrected it with the 1990 model's

Sep 02, 2009 | 1981 Suzuki GS 750 L

1 Answer

Charging system not charging like it should.


check the generator output as this normaly fails on this model

Mar 08, 2009 | 1993 Yamaha FZ 750 KT (Europe)

1 Answer

1986 yamaha fz400 wont start


You need fresh gasoline in it, if it's been idle for two(2) years, you also have to clean everything that your gasoline touches like the tank, fuel filter, fuel line, carburator, before pouring it in. If that wont help you, Have your CDI tested if your plugs wont spark. Also ask for the history of your bike, if it was running before they stopped using it.

Nov 22, 2008 | 1985 Yamaha FZ 750 FT (U.S.)

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)

1 Answer

Passing igniton


The best thing to do is to purchase a haynes or clymer manual for the bike and look up t he wiring diagram. The contain the colour codes and all other info you need. Another alternative would be to go to a dealer with the key code (normally embossed onto the lock) and get a key made. You are going to need a key if you're going to ride the bike anyway.

Nov 10, 2008 | 1988 Yamaha FZ 750 BV (Europe-US)

Not finding what you are looking for?
1993 Yamaha FZ 750 KT (Europe) Logo

Related Topics:

488 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Experts

dhnguyen

Level 2 Expert

281 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1147 Answers

Tony

Level 3 Expert

2600 Answers

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

Answer questions

Manuals & User Guides

Loading...