Question about 2008 Yamaha YZF-R1

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Fan wont come on . 2008 yamaha r1

Fans jus wont come on , bypassed the relay fans works perfect

Posted by Anonymous on

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Hi, Take the relay out of the bike and use a piece of wire to hang it with the sensor in boiling water. Hook an electrical tester to the relay with the tester set on "continuity" test. Add a thermometer to the water for best results. If you don't have a thermometer, Just wait for the water to start boiling. The relay should change from an open circuit to a completed circuit. If the relay never switches, you need a new one.

Posted on Aug 13, 2016

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Posted on Jan 02, 2017

agent91
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SOURCE: 2008 R1 cooling fan not

I have a 2002 ducati monster S4, it's fans come on at 212 degrees F, that is about 108 degrees C, They only come on in city traffic, and they have only come on twice in 8 years. Your coolant boils at 265F in a closed system, so depending on what the thermostat is set at, they are probably just getting ready to come on at 103. I kinda wish I had a switch that I could turn them on at any time, so it sounds like your bike is running normal, also, my bike runs at exactly 100 degrees hotter than the outside air temp, always. Hope this helps.

Posted on Jul 29, 2010

  • 58 Answers

SOURCE: Yamaha R1 2008 the cooling

your r1 has it own on board diagnostic check system where you can test if fans any other components are working ,plus it will log any faults in the system. if bike has had major service ,wires for fans,coils can rub through on fan blades if not put back correctly cut wires

Posted on Aug 11, 2010

  • 1 Answer

SOURCE: 2008 yamaha r1 keeps shutting off on me. i

I HAVE A YZF R1 2008 IT KEEP CUTTING OUT AND CODE 46 COMES UP ON THE DASH WHAT IS THIS CODE

Posted on Dec 27, 2011

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2003 r1 over heating


Hi, Smokedatkill and the usual suspects are:
1. Low coolant level.
2. Restricted radiator air flow.
3. Faulty thermostat.
4. Coolant pump or fans inoperative.
5. Vent hose crimped.
6. Air in the coolant and needs bleeding.
7. Engine idling too long or bike moving too slow.
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.r1-forum.com/forums/103-02-03-r1-mechanical-help/236527-2003-r1-overheating-help.html
Yamaha YZF R1 DIY Repair Fix Tips
https://r1videos.files.wordpress.com/2011/04/2002-2003-yamaha-r1-service-manual.pdf
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

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1 Answer

Radiator fan not working 99 Yamaha r1


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 $0 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.r1-forum.com/forums/101-98-99-r1-mechanical-help/233781-99-r1-radiator-fan-not-working.html
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1 Answer

01 yamaha r1 overheating at idle on hot day, but fans are working?


Hi, Anonymous and the usual suspects are:
1. Low coolant level.
2. Restricted radiator air flow.
3. Faulty thermostat.
4. Coolant pump or fans inoperative.
5. Vent hose crimped.
6. Air in the coolant and needs bleeding.
7. Engine idling too long or bike moving too slow.
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.
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http://www.r1-forum.com/forums/4-mechanical-help/281648-2000-r1-overheating.html
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1 Answer

Wheres the relay for the fan on my 2003 yzf r1 motorcycle


Hi, Ryanj317 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 $0 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.r1-forum.com/forums/46-how-tos/99459-how-04-06-r1-radiator-fan-override-switch.html
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https://r1videos.files.wordpress.com/2011/04/2002-2003-yamaha-r1-service-manual.pdf
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

May 10, 2012 | 2003 Yamaha YZF-R1

1 Answer

I have a 2009 r1 my check engine light came on and there's a noise that sounds like a pump or a fan going even when the key is off


lot of newer cars , fan will turn on, u could be in the house or over uncle jeds. if its hot out...

May 09, 2012 | 2008 Yamaha YZF-R1

1 Answer

I have a 04 Yamaha R1 and when the bike gets hot only the right side fan turns on to cool the bike but it's not doing a good job . How do I test the other fan to see if it's the motor or the wiring?


Hi, Michael 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 $0 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.r1-forum.com/forums/104-04-06-r1-mechanical-help/324404-only-one-radiator-fan-tuning.html
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Mar 31, 2012 | 2004 Yamaha YZF-R1

1 Answer

Yamaha R1 2008 the cooling fans have stopped working and the dealer has checked the fault back to the ECU. Funny he also has a second hand same model in stock with exactly the same problem. Have you...


your r1 has it own on board diagnostic check system where you can test if fans any other components are working ,plus it will log any faults in the system. if bike has had major service ,wires for fans,coils can rub through on fan blades if not put back correctly cut wires

Aug 10, 2010 | Yamaha YZF-R1 Motorcycles

1 Answer

2008 R1 cooling fan not working even at over 103 degree centigrade. Have check: 1) Fan fuses- ok 2) Fan relay- ok 3) Bypass the relay, the fan is working 4) Ignition fuse- ok 5) temp sensor- ok 6)...


I have a 2002 ducati monster S4, it's fans come on at 212 degrees F, that is about 108 degrees C, They only come on in city traffic, and they have only come on twice in 8 years. Your coolant boils at 265F in a closed system, so depending on what the thermostat is set at, they are probably just getting ready to come on at 103. I kinda wish I had a switch that I could turn them on at any time, so it sounds like your bike is running normal, also, my bike runs at exactly 100 degrees hotter than the outside air temp, always. Hope this helps.

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1 Answer

I'm looking for the location of the flasher relay 09 r1


Hi, Tom 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 $0 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.
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1 Answer

2008 Yamaha YZF-R1 engine overheating


Hi, Elcapxy 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 blue links below. Good luck and have a wonderful day.
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