Aftermarket cooling fan - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 35 (permalink) Old 05-09-2007, 03:05 AM Thread Starter
 
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Aftermarket cooling fan

Has anyone bought/used the six blade fan (on eBay) for the cooling system. If so, does it work a lot better and is it worth the money?

Run cooler Muzzys fan blade Ninja 750 ZL900 Vulcan H5 Item number: 180115307184

link is below--
http://cgi.ebay.com/ebaymotors/Run-c...QQcmdZViewItem
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post #2 of 35 (permalink) Old 05-09-2007, 05:35 AM
 
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just my opinion but high rpm low airflow?? hmmm sitting at a stop light reving to 4 grand or what............
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post #3 of 35 (permalink) Old 05-09-2007, 11:00 AM
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Quote:
Originally Posted by Devilin View Post
just my opinion but high rpm low airflow?? hmmm sitting at a stop light reving to 4 grand or what............
Well ya know... it is marketed to the crotch rocket crowd too...

Gotta wind er up to 10k while chatting with buddies in the (insert local dipsh.. kid hangout here) parking lot right?

Seriously though, there's good and there's bad with a "better" fan - it probably draws more amps - therefore would tax the charging system more while it's most vulnerable (hot). If the amp draw is the same - then it could be beneficial, good luck finding those specs ;-)

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post #4 of 35 (permalink) Old 05-09-2007, 11:19 AM
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High rpm/low airflow ?????

Like 12,000 in first at 23 mph? (on a crotch rocket of course)

Need to update that description some to perhaps low rpm/low airflow.

Jon

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post #5 of 35 (permalink) Old 05-09-2007, 11:56 AM
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The Muzzy fan is just that.. the fan blades.
It doesn't draw more amps, it simply moves the air better due to the pitch of the blades and the extra blades.

Standard price is
1304-MFH5 $36.95 $6 shipping
http://www.imotorcyclestore.com/prod...S63MUZALU&pt=L

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post #6 of 35 (permalink) Old 05-09-2007, 12:26 PM
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I was kinda wondering about that looking at the picture...

Geez $37 for fan blades... I understand there's research involved but megads - almost $40 for a couple cents worth of material

To get back to the original question - has someone used this fan and noticed a marked improvement?

Quote:
Originally Posted by Dianna View Post
The Muzzy fan is just that.. the fan blades.
It doesn't draw more amps, it simply moves the air better due to the pitch of the blades and the extra blades.

Standard price is
1304-MFH5 $36.95 $6 shipping
http://www.imotorcyclestore.com/prod...S63MUZALU&pt=L

Curtis - Albany Oregon.
Currently receiving therapy from "Doc" - My 1985 VN700.

Daily rider in NorthWET Oregon.
Ammo Can Saddlebags
Shaved and Rejetted. Coastered. Degoated w/ Hardley pipes.

Bought Feb 2007 with 12K miles.
Hit the 24k mile July 2008

http://photobucket.com/curtis97322
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post #7 of 35 (permalink) Old 05-09-2007, 12:34 PM
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*LOL* Well since I looked it up, I went ahead and ordered one. I can give you first hand reviews in a couple of weeks but from other VN750 owners that have replaced theirs.. they are happy with it and it does seem to make a difference.
One other problem with the plastic fan is on occasion (rarely, but it has happemed) the blade housing becomes dislocated from the shaft and the fan motor spins but the blade doesn't.
I live in the South and do all I can to keep my bike running cool in the summer. I use Engine Ice as ny coolant and this will just be an added boost to the cooling when the fan does kick in (which is at every stop during the summer)

Dianna
Conway, AR
Patriot Guard Rider
2000 VN750 Sere (Serendipity)
1990 GL1500 (Ole Blue)
1986 VN750 EVie (project bike, heavy custom)
VROC # 11628 / 25000-H
ARVROC # 12 Coordinator and Crowd Control
OKVROC # 18 (H)
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post #8 of 35 (permalink) Old 05-09-2007, 12:48 PM
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The fan blade use to be available from dennis kirk. Even though its just a fan blade, it may use more amps..... more work being done (more airflow) requires more power. However the difference shouldn't be all that much.

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post #9 of 35 (permalink) Old 05-09-2007, 01:00 PM
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I'd put it like this. More fan blades equals more air being pushed equals more work from fan motor equals more amps drawn. There's no free lunch. Do more work, draw more energy. Unless you get a more efficient motor, but that's not what this is, only the blades. A stock fan in working order does the job just fine. Making the motor draw any more amps would be a bad thing. Spend the money on an LED taillight maybe.

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post #10 of 35 (permalink) Old 05-09-2007, 01:17 PM Thread Starter
 
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Actually-- NO -- a stock fan/motor does not work just fine. Even when the fan comes on while your sitting in traffic or moving slowly, the temp never comes down to normal for quite some time- if at all. The temp does not come down to normal until you start driving the bike and increase the airflow thru the radiator and assist the stockmotor/fan in doing it's job.

I agree with the amp draw--I am going to have top get an extra fan assembly and look into the possibilty of rigging a brushless motor up to it. The brushless motor would draw less amps, but a motor that size would no doubt be very expensive.
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