Radiator Fan Install

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Radiator Fan Install

Post  Focker on Wed Feb 11, 2009 4:35 am

I was reading some threads on ADVrider the other day and came across another radiator fan discussion. "4play" had found a fan on ebay shipped to the door for under $30 bucks. After checking it out I pulled the trigger while it was still on sale. Here's a link to the seller on ebay - Click Here. Unfortunately the sale is over...But still a good buy!

Turns out it's the same fan (Spal 4" Pull) used in the KTM's but without the rectangle shroud Sad. Oh well...I decided that some air was better than no air. After checking out the mounting possibilities and what it would take to fab a custom shroud I decided to mount the fan in KLR fashion.

K⋅L⋅R
Fashion
–adjective.
1. unattractive or unpleasant to look at; offensive to the sense of beauty; displeasing in appearance.
2. disagreeable; unpleasant; objectionable.
3. morally revolting.

The holes on the fan line up almost perfectly with the XR's emissions tabs. I had to cut a little bit of plastic near the fans mounting holes so the XR tabs would line up right over the fan holes. I cut the bottom ears off the rad tabs and bent them away from the radiator slightly. This gave just enough room to squeeze the fan into position. I used some self tapping screws to cut threads into fans plastic.


I fashioned a mounting bracket from some aluminum and used a sealed pre-wired toggle switch with a rubber boot. The power is straight off the itty bitty battery. This will allow me to shut the bike down but still be able to run the fan if necessary.


My intentions aren't to run the fan unless I deem it necessary...ie - sitting at stop lights this summer when the temp off the asphalt is registering over 100F BRP smile <-- Sunburn.

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Re: Radiator Fan Install

Post  Hodakaguy on Thu Feb 12, 2009 2:39 am

Not a bad price on the fan. Install looks great nice

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Re: Radiator Fan Install

Post  Off the Grid on Mon Feb 16, 2009 4:48 pm

Me likes....but how much is a radiator fan needed? Does the BRP really overheat that much? Is it stop-and-go traffic or general use?
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Re: Radiator Fan Install

Post  Focker on Mon Feb 16, 2009 5:38 pm

Since the XRR wasn't designed to be a dual sport trail bike but rather for 90 MPH through the desert it makes sense that it wouldn't come with a fan. But as Hodakaguy once said all other DS bikes seem to have them...Why not!

Focker wrote:My intentions aren't to run the fan unless I deem it necessary...ie - sitting at stop lights this summer when the temp off the asphalt is registering over 100F.

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Re: Radiator Fan Install

Post  AURORA on Mon Feb 16, 2009 9:29 pm

How about running Evans NPG+ or NPG-R Coolant?
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Re: Radiator Fan Install

Post  AURORA on Mon Feb 16, 2009 9:31 pm

Fan now on sale for $26.99

http://cgi.ebay.com/ebaymotors/SPAL-4-Paddle-Blade-Push-12V-Fan-Motorcycle-ATV_W0QQcmdZViewItemQQ_trksidZp4634Q2ec0Q2em14QQhashZitem190285729834QQitemZ190285729834QQptZMotorcyclesQ5fPartsQ5fAccessories#ht_500wt_1364
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Re: Radiator Fan Install

Post  Focker on Mon Feb 16, 2009 9:33 pm

AURORA wrote:Fan now on sale for $26.99


http://cgi.ebay.com/ebaymotors/SPAL-4-Paddle-Blade-Push-12V-Fan-Motorcycle-ATV_W0QQcmdZViewItemQQ_trksidZp4634Q2ec0Q2em14QQhashZitem190285729834QQitemZ190285729834QQptZMotorcyclesQ5fPartsQ5fAccessories#ht_500wt_1364
That's a "Push"...I think you want the "Pull".
AURORA wrote:How about running Evans NPG+ or NPG-R Coolant?
I do. BRP smile

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Re: Radiator Fan Install

Post  Focker on Tue Feb 17, 2009 3:04 am

AURORA wrote:
AURORA wrote:How about running Evans NPG+ or NPG-R Coolant?
I do. BRP smile
Correction dummy ...I use Engine Ice.
I've never had overheating issues but haven't had the bike out in 100F weather yet.

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Evans...

Post  Bump on Mon Nov 23, 2009 1:17 am

I know some guys who ride their BRPs in Summer here and the temps are regularly around 120. No problems if they have Evans.
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Re: Radiator Fan Install

Post  waddedup on Sat Mar 26, 2011 5:08 am

so hows the fan holding up? and how's it working?
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Re: Radiator Fan Install

Post  rikco on Mon Mar 28, 2011 12:15 am

i did build one on my piggie real cheap

i only used a 120mm computer fan (5dollar???) and i can see on my vapor it workes great when im infront of a stoplight or doing some slow riding

and made a power on/off switch (7dollar) on my dashboard and thats all

http://cgi.ebay.com/Aircraft-OFF-Toggle-Switch-Cover-WCC-/120701803224?pt=LH_DefaultDomain_0&hash=item1c1a635ad8

easyduzit Cool



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Re: Radiator Fan Install

Post  modette on Sun Apr 10, 2011 7:39 pm

How long will it last with water crossings and getting wet? Just curious is all.
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Re: Radiator Fan Install

Post  rikco on Thu Apr 14, 2011 1:20 pm

not long i ques clown

i never ride in the rain and when that is gonna happen one day i wont put power on it (it got a fuse also)

when i find an original fan im gonna put that up but until now this fan workes fine for more then a year now. cheers
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Use the KTM fan

Post  Bump on Thu Apr 28, 2011 4:38 am

I don't think there are many better options than the proven KTM fan. Honda has a fan. I held one the Honda Japan mailed to Bruce Ogilvie just for the XR650R but I couldn't tell what it came off of.
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Re: Radiator Fan Install

Post  bikerman on Sat May 14, 2011 3:54 am

Rikco,
Did you get that odometer to make it street legal? where did you get it from? I have to start working on my stuff to get it done over next winter.

any pics of the signals? I would like nice low profile tiny ones.

Thanks,

IBM

rikco wrote:i did build one on my piggie real cheap

i only used a 120mm computer fan (5dollar???) and i can see on my vapor it workes great when im infront of a stoplight or doing some slow riding

and made a power on/off switch (7dollar) on my dashboard and thats all

http://cgi.ebay.com/Aircraft-OFF-Toggle-Switch-Cover-WCC-/120701803224?pt=LH_DefaultDomain_0&hash=item1c1a635ad8

easyduzit Cool



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Re: Radiator Fan Install

Post  rikco on Sat May 14, 2011 11:01 am

i baught my piggy street legal (original enduro style) with the original odo meter but i made the bike a supermotard now so i added the vapor (e-bay) with the selfmade dashboard and added small blinkers. Wink

it was like this:


here with the new blinkers:



today it looks like this:
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Re: Radiator Fan Install

Post  rikco on Sat May 14, 2011 4:07 pm

this looks like an original xrr fan???? scratch

get it if ya like cheers

http://cgi.ebay.co.uk/HONDA-XR-650-FILLER-SIDE-RADIATOR-XR650R-XR650-01-07-/260783856008?pt=UK_Motorcycle_Parts&hash=item3cb7edd988
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Re: Radiator Fan Install

Post  Mauser on Mon May 16, 2011 11:37 am

rikco wrote:this looks like an original xrr fan???? scratch

get it if ya like cheers

http://cgi.ebay.co.uk/HONDA-XR-650-FILLER-SIDE-RADIATOR-XR650R-XR650-01-07-/260783856008?pt=UK_Motorcycle_Parts&hash=item3cb7edd988

Sorry guys just brought the 1 on ebay, only brought the fan & cowl razz will let you know what it's like when it gets here. Need to work out where it was originally wired into, cannot see honda having a "make do" switch.

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Re: Radiator Fan Install

Post  BuRP on Mon May 16, 2011 7:53 pm

Mauser,

Pls post a pic here when you get it? Would like to see it, but maybe you can tell me if it's the KTM-unit with the 4" Spal puller in?
Ricko's link now steers to a RH-radiator ofF - allegedly - an XR650R........ but it is the first one I've seen with 4 tabs on. My, removed of course, anti-smog rubbish was mounted using 3 tabs only, no idea what bike this rad is off??

Also, as far as I know did Honda not bring a version out with a fan as std equipment, hence there simply is not 'std' fan - which means you'll have to make your own switching circuit, either manually or thermostatically. I'm busy with the latter, waiting for a machined thermoswitch-housing.
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Re: Radiator Fan Install

Post  BuRP on Mon May 16, 2011 7:59 pm

And Ricko,

if that is indeed "today" then you'll want to slacken-off the chain, it's way too tight Rolling Eyes
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Re: Radiator Fan Install

Post  rikco on Mon May 16, 2011 8:40 pm

no not today
look the date on the picture Wink
but the bike still looks like that today and i dont ride that much Sleep , vew days ago i did my first oil change after 1350km (838 miles) and i got the bike since march 2009

scratch

i also never seen 4 tabs on the radiator, i got 3.
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Re: Radiator Fan Install

Post  Mauser on Mon May 16, 2011 9:15 pm

BuRP wrote:Mauser,

Pls post a pic here when you get it? Would like to see it, but maybe you can tell me if it's the KTM-unit with the 4" Spal puller in?
Ricko's link now steers to a RH-radiator ofF - allegedly - an XR650R........ but it is the first one I've seen with 4 tabs on. My, removed of course, anti-smog rubbish was mounted using 3 tabs only, no idea what bike this rad is off??

Also, as far as I know did Honda not bring a version out with a fan as std equipment, hence there simply is not 'std' fan - which means you'll have to make your own switching circuit, either manually or thermostatically. I'm busy with the latter, waiting for a machined thermoswitch-housing.
Hey no problems Burp. will post up loads of pictures etc, only brought it as a project my bike never gets hot enough to need cooling and the UK isn't a hot place lol.
My rad only has 3 tabs and I think it's a retro fit from another bike but only paid £25 delivered so worth the gamble, I am planning on adding a thermostat switch to make it work if I ever fit it Smile.
Might be here tomorrow you never know, the cowl looks like it will catch the rad sheild ? but the picture has gone now so cannot show you....doh.

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Re: Radiator Fan Install

Post  BuRP on Tue May 17, 2011 10:05 am

Mauser,

I've got an in-line aluminium adapter made/turned to accept a thermoswitch (automotive) which will be able to switch the current direct, ie no relay needed.
It's a similar thing to the temp-sensor housing the Vapor comes with, I'm sure you've seen it (or got it?), and I'll mount it in the top-waterline to the RH rad. A fuse will do the rest, no hassles. Me getting it, plus anodizing & mounting it will take a while, but I'll post a piccie here when it's on.
You could do same I suppose, with your friend who's got a machine shop? I could get you the number of the switch I'll use, around 100degC On & 95C Off (ie a built-in hysteresis which you want) which I think is close to perfect for our bikes. The Americans tend to use a waaaaay 'cooler' switch, coming On in the very low 80'sC which must mean the fan's On for too much/long as this is the thermostat's opening temp.

Also, for mounting the Spal (no cowling!) I've got a dxf-file for lasercutting, it's a perfect fit & strong too.
And, for my big 27l IMS tank (no space for the Spal left!!) I've got brackets coming to mount dual (LHS also) computer fans - which move little air compared to the Spal but at least it'll be better than nothing.
Shoot's a line if you want info.
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Re: Radiator Fan Install

Post  Mauser on Wed May 18, 2011 4:15 pm

All doom guys, the fan and cowl arrived today but sadly they are of a DRZ400, seller appologises and they have been sent back today Sad.

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Re: Radiator Fan Install

Post  rikco on Wed May 18, 2011 8:05 pm

was it to big for the xrr to fit?

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