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Gregoxb
Posted on Saturday, March 25, 2017 - 03:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What would happen if you just turned the fan on the XB completely off?

Does that little fan really do that much cooling work that it has to run so frequently?
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Teeps
Posted on Saturday, March 25, 2017 - 05:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Considering the fan comes on at 428F (or there abouts) I would not want to find out...
Depending on ambient conditions, I've done 100 mile rides with the fan remaining off except when the engine is shut off.

I've read the fan helps to prevent the fuel from boiling in the injector lines and the oil from coking in the rocker box.
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Brother_in_buells
Posted on Sunday, March 26, 2017 - 06:08 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Putting a right side airscoop on the bike saves the fan a lot of running time!
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1_mike
Posted on Sunday, March 26, 2017 - 04:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Greg -

I can tell you a FEW horror stories of watching Harley engines self destruct on hot days in traffic..!

You really want to be in that crowd ?

Mike
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Natexlh1000
Posted on Monday, March 27, 2017 - 09:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Also, that little fan is pretty beefy.
I think it takes like 7 amps at full song.
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Phelan
Posted on Monday, March 27, 2017 - 07:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

That "little" fan turns serious RPM and does a lot. One of the reasons the motor is so tightly wrapped by the frame is to help shroud the fan to maximize its effectiveness in pulling air across the fins. Without it, you may as well be frying eggs on the frame after a long ride.

(Message edited by phelan on March 27, 2017)
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