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  1. #1

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    Default II Radiator fan on a 99 Hayabusa

    Hi Guys,

    I am planning to install a second radiator fan on my 99 Hayabusa because of bad wheather condition. I am not sure which fan would fit my Hayabusa.
    Kindly suggest me, which bikes radiator fan would the best option to intall on a 99 Hayabusa as a second fan.

    So far i was looking at Yamaha R6 fan, will it work ?

    Plz help..

    Thanx

  2. #2
    Professional Pilot
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    Default Re: II Radiator fan on a 99 Hayabusa

    i found putting a manual switch on the stock fan to turn fan on at wil,l works good. the trick is to get the fan on sooner rather than more fans.(like as soon as i stop.I hit the switch) i dont know how the thing is wired as my shop did the work. CT gets into the 90s now and then and it works .but theese bikes really need to be moving for the airflow.
    Last edited by rob t; 11-21-2010 at 01:16 PM.
    stay off the rear brake!!

  3. #3
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    Default Re: II Radiator fan on a 99 Hayabusa

    Quote Originally Posted by 1999hayabusa View Post
    Hi Guys,

    I am planning to install a second radiator fan on my 99 Hayabusa because of bad wheather condition. I am not sure which fan would fit my Hayabusa.
    Kindly suggest me, which bikes radiator fan would the best option to install on a 99 Hayabusa as a second fan.

    So far i was looking at Yamaha R6 fan, will it work ?

    Plz help..

    Thanx
    If you want to set up with a second fan, a GSX 1k or 6k fan works best to clear the headers and not strain the fit.

    Follow the advise for manual fan switch to override in hot conditions.

    Install a Honda Accord or similar type code temperature switch to have the fan come on at lower temps. Here is an article that gives good information on that switch and plug-in. Honda fan switch

    Use Muzzy fans in one (or both).

    Finally, run a 50/50 mix of distilled "ONLY" water, 6-8oz. of Redline's Water Wetter (exmpl.) and ethylene glycol (anti-freeze) - Honda Anti-Freeze works best. Mix all in separate container - pour in.

    DO NOT USE PRESTONE DEX-COOL, IT WILL CLOG, COAT AND DESTROY YOUR COOLANT INTERNALS!!


    I would do all above sans the second fan first,,, then re-access operating temps before going with the second fan install.

    Hope that helps.

  4. #4

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    Default Re: II Radiator fan on a 99 Hayabusa

    Thanx a lot guys.. This was really helpful

    Is it recommended to remove the thermostat ?

  5. #5
    Seasoned Pilot Paulie1300's Avatar
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    Default Re: II Radiator fan on a 99 Hayabusa

    Quote Originally Posted by 1999hayabusa View Post
    Hi Guys,

    I am planning to install a second radiator fan on my 99 Hayabusa because of bad wheather condition. I am not sure which fan would fit my Hayabusa.
    Kindly suggest me, which bikes radiator fan would the best option to intall on a 99 Hayabusa as a second fan.

    So far i was looking at Yamaha R6 fan, will it work ?

    Plz help..

    Thanx
    Dude, I got a second fan I'll sell cheap, it's taking up space on my bench, 50 bucks shipped. PM me for details.
    Making big trucks go fast since 2004. 6.0 and a Turbo up next....

  6. #6

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    Default Re: II Radiator fan on a 99 Hayabusa

    oh.. i just bought a gsxr1000 fan ebay. I am looking for muzzys fan, plz let me know if you come across one.

  7. #7

    Ruben's Avatar
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    Default Re: II Radiator fan on a 99 Hayabusa

    08 Hayabusa R/H fan be used too ??

  8. #8
    Seasoned Pilot Rocketmn's Avatar
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    Default Re: II Radiator fan on a 99 Hayabusa

    I Run a Muzzys Aluminum Fan Blade that they sell for the Hayabusa on my 02' Turbo and Have Never had a problem after I changed it. I believe I got it from Schnitz. Put some Blue Lock-tite on the threads of the Blade screws!

  9. #9
    Top Gun MikeSomething's Avatar
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    Default Re: II Radiator fan on a 99 Hayabusa

    Ok...
    1) Muzzy Aluminum Fan Blade on stock fan
    2) GSXR-1000 Fan (Muzzy makes a fan blade for it also)
    3) "Engine" Ice Fluid
    4) Highpressure Radiator Cap
    5) Manual Fan Switch
    6) Lower temp thermostat

    ...They also sell "fin combs" to comb the radiator fins straight and clean off debris.
    '06 Blue & Silver
    PC3, TRE, Sm Airbox MOD, Full Yosh TRS, AFAM 17/42 Sprockets, EK ZZZ Chain, PP 2CT's, R6 Throttle, Soupy's +1 Links

  10. #10
    Seasoned Pilot scrappy's Avatar
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    Default Re: II Radiator fan on a 99 Hayabusa

    im putting a second fan on mine as well, where in heck did you guys find the connectors for the wiring harness? I was thinking i could remove the OEM connectors and put some aftermarket connectors on, but i was hoping to find OEM..

  11. #11

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    Default Re: II Radiator fan on a 99 Hayabusa

    Hi Guys,

    I have received all the parts to install the second fan

    1. GSXR 1000 stock fan
    2. Hayabusa Muzzy fan blade
    3. GSXR 1000 Muzzy fan blade
    4. Low temp fan switch
    5. High pressure radiator cap
    6. Two bottles of Engine Ice

    Will install the setup on the stock connections (will upgrade the fuse)

    CONFUSED ABOUT THE CONNECTORS

    Just waiting for the summers to come

  12. #12
    Seasoned Pilot Tony Nitrous's Avatar
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    Default Re: II Radiator fan on a 99 Hayabusa

    Not sure why you guys need more cooling ?

    Both of my Mk1's had rad guards in front and still never got above normal
    even with heavy use and abuse in Australia's summer, road or Drags.

    I suppose it might be an issue with tuned motors ?

    If its any help Guy's, a B-King also has twin fan's as stock.

    Last edited by Tony Nitrous; 12-25-2010 at 02:56 AM.

  13. #13

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    Default Re: II Radiator fan on a 99 Hayabusa

    there were some heating issues in the 99-07 busa's, may be that is the reason the 08 busa was launched with two fans

  14. #14
    Seasoned Pilot Tony Nitrous's Avatar
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    Default Re: II Radiator fan on a 99 Hayabusa

    Quote Originally Posted by 1999hayabusa View Post
    there were some heating issues in the 99-07 busa's, may be that is the reason the 08 busa was launched with two fans
    News to me. Had 2, an new 04 and a 2nd hand 02 (still got)
    Temp doesnt even get high at the drags or in the city.
    Never heard about that. It can get warm in Australia.

  15. #15
    Seasoned Pilot VFRcanada's Avatar
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    Default Re: II Radiator fan on a 99 Hayabusa

    Quote Originally Posted by Tony Nitrous View Post
    News to me. Had 2, an new 04 and a 2nd hand 02 (still got)
    Temp doesnt even get high at the drags or in the city.
    Never heard about that. It can get warm in Australia.
    The temp light has come on twice on my 05 in stop and go city driving on hot days. I plan to install a second fan this winter.
    2005 Hayabusa Limited - Sometimes I scare myself.

  16. #16
    Seasoned Pilot Tony Nitrous's Avatar
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    Default Re: II Radiator fan on a 99 Hayabusa

    I wonder if the US bikes are set up slightly different ?
    Maybe running leaner and producing more heat ?
    Perhaps there's a slight mapping difference ?
    I know your B-Kings have differnt immission set up's to the rest of the world.

    Not disagreeing with anyone, just find it interesting.

    Tony.J.

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