Question about 2006 Yamaha yZ 450 F

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Overheating fan works with power sensors omned test ok circuit breaker tests ok fuse ok

Posted by Anonymous on

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  • Yamaha Master
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Hi, Anonymous and the usual suspects are:
1. Engine oil level and SAE weight are too low or not circulating.
2. Insufficient or blocked air flow over the engine.
3. Heavy combustion chamber carbon deposits.
4. Ignition timing retarded due to faulty MAP, CKP, or CMP sensor.
5. Carburetor jetted too lean.
6. Leaking intake or exhaust valve.
7. Water coolant old or low change every two years.
8. Water pump failure.
9. Radiator clogged, cap loose or malfunctioning.
10. Radiator fans not coming on.
11. Clutch slipping, brakes dragging, heavy load, towing a trailer etc.
12. Idling too long without moving.
13. For constant hot weather temperatures, mountain, or desert riding conditions consider adding an oil cooler and or cylinder head cooler.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
YZ450F over heating help YZ 400 426 450
Yamaha YZ450F service manual repair 2006 YZ450 Download Manuals Technical
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Posted on Sep 27, 2016

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Posted on Jan 02, 2017

wd4ity
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SOURCE: i have a 1982 yamaha vision 550 and it over heats

There should be a sensor in the bottom of the radiator that senses the water temperature and turns the fan on when it reaches a certain temperature. There is a sensor somewhere and I'm guessing it's in the bottom of the radiator. Jumper across it and see if the fan runs. To test it, you'll have to connect an ohm meter to it and put it in a pan of water. Slowly heat the water until the sensor changes state. Notice the water temp when this happens.

Posted on Jul 20, 2010

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2 Answers

Outlets not working all fuses are good


120-
VOLT
AC
SYSTEM
The following electrical components (if so equipped) will only operate when your
RV is connected to shore power: 120 to
12-volt power converter, air conditioner,
120-volt refrigerator, microwave oven, television(s), fireplace and appliances
plugged into convenience receptacles.

SECTION 6 - ELECTRICAL SYSTEM JAYCO TOWABLE
6-2
120-
VOLT
CIRCUIT
BREAKERS
The 120-volt AC circuit breakers located in
side the main load center protect all
120-volt wiring and components in the RV fr
om circuit overloads and short circuits.
Should a circuit overload or short circui
t occur the circuit breaker protecting the
affected circuit will "trip" preventing the flow of electricity through that circuit.
If a circuit breaker trips, shut "off"
the appliance on that circuit (i.e., power
converter etc.) and allow the circuit breaker to cool down for a brief period of time.
After the cooling down period, reset the circuit breaker by moving its lever "off" and
then back to the "on" position. If the circuit breaker re-trips or frequently trips,
contact your dealer to have the electrical problem diagnosed and repaired.
A circuit breaker identification label is permanently attached to the inside surface
of the 120-volt load center.
Maintenance and Replacement
At the beginning of camping season, inspect the circuit breakers and replace as
needed. Test by turning each circuit breaker "off" and back "on". Circuit breakers
are wearable parts and must be replaced
as needed, as part of your RV
maintenance. If you have any questions, consult your dealer.
Please contact your dealer for repair assistance when replacing circuit breakers.
CONVERTER
The power converter converts 120-volt AC power to useable 12-volt DC power
when the shore power cord is connected to an external power source.
The converter has a built-in protective thermal breaker that will shut it down should
overheating occur. Overheating can be
caused by operating the converter above
its maximum power output for an extended period of time, or by an obstruction to
its ventilation air flow. To reduce converter heat build keep unnecessary 12-volt
lights and motors turned "off"
.
Keep the converter cooling fins and fan clear of
obstructions.
Inspection and maintenance
If the 12-volt power converter is not working (auxiliary battery not being charged)
check the reverse polarity fuse(s) in the converter fuse panel.
There are no
customer serviceable parts inside the converter case and the
manufacturer's warranty will be void if
the case has been removed
. If you
have further concerns contact your dealer.

Nov 16, 2014 | Jayco 2013 Jay Flight Swift 264BH

3 Answers

Where is the engine fan relay located on 2000 lincoln ls v6


There is no relay on the cooling fan circuit.
If the cooling fan is not operating, check fuse #105 (20 AMP), in the underhood junction box, right front of engine compartment.
If fuse is good then test to make sure fan is getting power.
If no power then could be bad cylinder head temperature sensor, hydraulic fan solenoid, a/c cycle switch or the PCM.
If it has power but doesn't come on then fan motor is bad.

May 28, 2014 | 2000 Lincoln LS

1 Answer

Dryer blows circuit breaker after running 10-20 minutes.


indicates problem motor , overheating in the wiring or excessive loads in the drier

Jun 07, 2017 | Kenmore Dryers

1 Answer

Car over heats fans dont come on


Check fuse for cooling fan, check temperature sensor functioning for cooling fan, check relay for the fan (if you have one), check cooling fan motor circuit with resistance check (should read low Ohms, less than 2 Ohms beacause the fan is a powerful motor with 10-20 Amps).
If everything is measured O.K. you should check the wiring. Disconnect the connector at the cooling fan motor, connect a test light to the harness from the car (not to the motor side) and run the engine. Watch the temperature gauge and before you the boiling (overheating) the bulb should lit up. If not you should go back with this test step by step to the relay. The relay can be tested if you can find a same one on your relay board and swap temporary (e.g. swap the AC clutch relay with the cooling fan relay)

Nov 02, 2013 | Nissan Sentra Cars & Trucks

1 Answer

Power turned off


1) see if the power outlet wall is o.k reset the c.breaker or change blown fuse.test putting some desk lamp and TURN ON, if does the circuit is o.k and contrary, repair.
2) if the circuit is ok test the power cord for open, break and repair.
3) test the main swicth for open, loose cable, or defective replace.
4) test the fuse blown and replace, or reset the c.breaker inside.
5) retight any wires connector for loose.
6) and Proof again.
God bless you
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Jul 30, 2012 | Exercise & Fitness

1 Answer

My 2006 Chevrolet equinox cooling fans and front turn signal lamps have abruptly stopped working. Tested the fans=good. Tested flasher bulbs=good. Do I need new wiring harness? Maybe a connection...


I would find the circuit breaker relay that supplies power to whichever power distribution box that contains the cooling fan relays. If the box has power, then you may want to consider the following: I feel that if you find out why the fans quit working, then you may also have solved the front turn signal issue.

Electric Fan(s) not working, Checking the fan(s), relay, fuse and engine temperature sensor's.
Verify that the fans work by unplugging them and run jumper wires to the fan(s) from the battery. If they run, your problem lies elsewhere. If either does not run, it's the motor.
Next thing to check is for power at the fan connectors. You have to be cautious doing this because the engine needs to be running and warm if not almost hot, and the A/C also needs to be on. (Both must be on and running for the duration of this checklist.) The A/C fan is on the passenger side and should come on almost the instant the A/C is turned on. It is also the secondary engine cooling fan and should cycle on and off in relation to engine temperature, (If the A/C is OFF). Use a test light to probe the two wires on each fan. If you find power, the fan motor(s) is/are probably bad. If there is no power to fans, roll up your sleeves!

The temperature switch is usually located above the oil filter. If the dash gage is working, its probably OK. Next is the Fan Control Temperature Sensor, located IN or CLOSE to the thermostat housing. You will find out if it is working later is this checklist. I just wanted you to know where it is. Next is the relays and fuse's. Usually located in the engine compartment on the passenger side power distribution box. You will need to remove anything over the cover to open it. If the fuses are OK, tap on the relays or pull them out and push back in. If the fans are still not running, pull a relay and probe the socket terminals for power. Two of the terminals should have power, usually criss-cross from each other. One hot terminal is battery power, and the other is the "signal" voltage which triggers the relay to send 12V battery power to the fan. This signal voltage comes from the sensor at the thermostat. If only one terminal has power, then I would replace the sensor at the thermostat, if not both sensors.

Aug 19, 2011 | 2006 Chevrolet Equinox

1 Answer

Blower fan will not shut off, radio quit working, side doors will not open electrically, heated seats quit working . Not all of these happened at the same time.


First thing I would check is the main power distribution center for the circuit breakers,relays and fuses. Use a test light to see if power is at all the connecting points, put fuses in place of breakers to test them. Burned contacts inside will make them "click" but no power will go to the circuit. You can take the cover off of a breaker and look inside at the contacts and clean them with emery cloth or fine sand paper. Relays are the same only boxy in shape. Contacts will also stick shut and not disconnect like in your blower fan problem.

Hope this helps, Craig

Dec 23, 2010 | 2000 Chrysler Town & Country

1 Answer

Power turns on but nothing else turns on, just the display screen. is there an easy fix ie fuse or something?


CHECK BREAKER AT MAIN BOX , SHUT OFF BREAKER ALL THE WAY OFF AND BACK ON. IF YOU DO NOT HAVE BLOWER WHEN YOU TURN FAN SWITCH TO ON THEN YOU STIIL HAVE NO POWER TO UNIT . GO TO OUT SIDE UNIT ON GROUND AND PULL OUT DISCONNECT FUSES AND TEST THEM OUT OF FUSE HOLDER LIKE AUTO FUSES. IF UNIT IS ON ROOF SHOULD HAVE FUSES UP ON ROOF IN 6  X4 GRAY BOX. SHUT OFF BREAKER FIRST BEFORE FUSE TEST. IF FUSES OK AND BREAKER OK THAN YOU MIGHT HAVE BLOWN TRANSFORMER.

Apr 21, 2010 | Danby DAC9003D Air Conditioner

2 Answers

Cooling fans not working


wire them direct to a toggle switch on dash to turn on and eliminate all sensors and solenoids...or direct to fusebox accesory that comes on with key to run when car sterts...failproof...

Aug 06, 2009 | 1996 Chevrolet Lumina Mini

1 Answer

Overheating an also fan dosen't work


direct fan conection to test fan to see if its ok,,, check fuses ,check fan relay,u may need to bleed coolant system of any air,,,and replace coolant sensor

Jul 03, 2009 | 2001 Dodge Caravan

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