Question about 1988 Yamaha FZR 1000

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Where does the wire from alternator hook up too

When i took the old alternator off to replace it, it was straight wired it doesn't have a plug....where exactly on the wiring harness does the wires hook up to. I can't figure out which wires or where it hooks up to.

Posted by Anonymous on


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  • Yamaha Master
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Hi, Anonymous sorry 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 visit the websites below. Good luck and have a nice day.
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Posted on Mar 14, 2016


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

Hi there,
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Posted on Jan 02, 2017

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SOURCE: where to plug negative terminal on OEM heated grips?

any strait black wire or a good chassis ground.

Posted on Nov 13, 2008

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SOURCE: My yamaha ttr90 wiring

you should be able to repair the harness just solder the wires and heatshrink the connection
the new harness costs
see pic
(5HN8)299268-001 $6.85

Posted on Dec 03, 2008

cape cod bob
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SOURCE: location of wiring harness for lights on a Yamaha Venture motorcy

best place to start is behind your back light then follow wires to a place where you want to splice in your trailer socket

Posted on Mar 22, 2009

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SOURCE: I don't understand my wiring diagram.How does the

Hi and welcome to FixYa,

If the starter relay in your version uses blue / white and red / white wires, then to my understanding, connection would be:

  • blue / white - goes to the start switch and is supplied with +12 on starting;
  • red / white - goes to the starter circuit cut-out relay. This cut-out relay controls whether the starting relay gets a ground based on neutral/gear and clutch lever conditions.

Good luck and thank you for asking FixYa.

Posted on Jul 08, 2009

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SOURCE: 1995 yzf 750 wiring diagram, starts wont rev

Hi and welcome to FixYa,

Would the wiring of a 95 YZF750 R/SP European model help?

Good luck and thank you for asking FixYa.

Posted on Nov 08, 2009

Testimonial: "the blue yellow black wires i was looking for appear to be for tps unit whitch is missing thanks this gets me going in correct direction "

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Lets start with the battery. There should be a relay of some kind with two large wires hooked to it, and maybe 5 other smaller wires. Now the one large wire should go to the relay direct from the battery, then the other large wire will go to the starter. When the connection is made between these two large wires the starter should turn. Now there will be one or two smaller wires that control the relay, ( these are hooked to a post or posts on that same start relay), so it will pull in and make the connection between the two large wires to turn the starter. You can check this with an old school 12v test light, hook a hot wire to one side of the start button from a hot wire here in the relay, (one that is hot when the clutch is pulled in or the bike is in neutral -- clear as mud?) or it can be hot all the time, but the starter will turn every time it's touched. Some old school bikes are wired like that anyway. Go and push the starter button and check wires until you find one that gets hot only when you push the start button. Then back to the relay, pull that hot wire from the start button to the relay and touch it to the small post and see if it will now energize the relay when the start button is pushed. Now once all this wiring is fixed it should turn over the engine, when the start button is pushed and it's in neutral or the clutch is pulled in or it will take off on it's on. Next the Alternator, one of the medium sized wires should come straight from the battery to the regulator nothing in between, thats is the regulator exciter wire, next is the, alternator wires, there should be 2 or maybe 4 wires coming out, and if there are 4 they are in pairs these are the A/C output of the alt. These wires will hook to the rectifier, You should have one wire going to ground from the rectifier, then, these 2 wires from the alt. then a wire that hooks to the regulator as 12v hot out of the rectifier. See this is how the Alternator works is produces A/C voltage (say 28, 30 volts A/c) then the rectifier converts it to 12 volts + - D/c the - negative is the ground wire. The regulator will Check the volts at the battery and adjust the output of the 12vdc from the rectifier and let it pass on to the battery to charge it. I hope some of this helps you, I hope it makes sense. I would love a bike like this. . . .

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