LC8 Adventure Second Fan Install

[far]

Originally Posted by Head2Wind

No, the 5.2" fan will not fit the bracket... and for that matter the 5.2" is a VERY TIGHT FIT if at all on the right side, especially the 990 because of the EFI plug on the frame rail.


I'm not sure that running the fans almost 100% of the time is really necessary, which is most likely going to be the result of having a 160F thermo switch. Keep in mind that typically thermo switches have a ON temp (200) and a OFF temp that is ~20 degrees below the ON latch temp. So, if installing a "160F" switch, that means the radiator coolant temps would need to be at or below ~140F before it would unlatch and turn OFF the fans.... IMO, not optimal.

Then the one god for my test could be the 180F not so aggressive in the charge system, BTW I don't even know if the 160F & the 180F exist for this radiator connector, did you know?
Thanks for the help.

[DeeGee]

Cracking report I've just bought an OEM fan from the Bay and I'll be looking at fitting soon, as I've had overheating "issues" on my Euro trip this year and a recent rally. I'd like to know where you got the lower teaperture sensor switch from? Is it a KTM part or could I source one from any good auto stores?

Thanks DG

[Yascher]

the next best thing on the list after second fan and new switch is a deflector for second fan, like on the original one on the left!!!

[Bumpaman]

Recently finished almost 5000 mi. on a GDR ride after installing the second fan and lower temp sensor on a 2005 950. Some days were quite warm. Both fans working kept things a 4 bars when riding slow or pulling uphill. However, I read of quick cycle times and I have noticed that when the fans come on they will stay on constantly until the riding is easier. Is this normal or is there a problem elsewhere to cause them not to cycle during the difficult stuff. Radiator appears to be clean and coolant level is correct. This may be normal, just wondered what the OC thought. The fan kit is one of the best things you can do for your bike. Get it and you will love it!

[bikyto]

Originally Posted by DeeGee

Cracking report I've just bought an OEM fan from the Bay and I'll be looking at fitting soon, as I've had overheating "issues" on my Euro trip this year and a recent rally. I'd like to know where you got the lower teaperture sensor switch from? Is it a KTM part or could I source one from any good auto stores?

Thanks DG

You can get the sensor here
http://www.advmachines.com/

[geometrician]

Originally Posted by Yascher

the next best thing on the list after second fan and new switch is a deflector for second fan, like on the original one on the left!!!

many Inmates have found their bikes run cooler by removing the plastic directing shrowd- I myself left it in place but turned the rubber flaps so they pivot from the inside, so the hot exhausted air goes away from the center of the bike and out the left tank opening

I think having more plastic in such a tight place hurts cooling, back in the age of the Dinosaurs we had a heck of a time getting 900 Ninjas to cool themselves down and removing Kawasaki's plastic bits helped a lot- I'd have to dig it up but Motorcyclist did an article with each mod being measured for temperature drop, showing (as I recall) about 15f temp drop from removing the fan shrowd.

If someone had the time that Bob of Thermobob fame (see here) has they could record the temp drop of the different LC8 mods.

YMMV of course.

[Black Hills]

have those of you with heating problems bled the cooling system? mine overheated when I first got it and it apparently had a lot of air in the water pump area? I initially thought it was a fan issue as the only time it would cool properly was if you were moving @ 40+MPH. after bleeding the fan cycles like it is supposed too and everythign seems to work fine.

[Head2Wind]

Originally Posted by Bumpaman

Recently finished almost 5000 mi. on a GDR ride after installing the second fan and lower temp sensor on a 2005 950. Some days were quite warm. Both fans working kept things a 4 bars when riding slow or pulling uphill. However, I read of quick cycle times and I have noticed that when the fans come on they will stay on constantly until the riding is easier. Is this normal or is there a problem elsewhere to cause them not to cycle during the difficult stuff. Radiator appears to be clean and coolant level is correct. This may be normal, just wondered what the OC thought. The fan kit is one of the best things you can do for your bike. Get it and you will love it!

This is what I would consider to be "normal"

[Head2Wind]

Originally Posted by Yascher

the next best thing on the list after second fan and new switch is a deflector for second fan, like on the original one on the left!!!

Recent addition to the kit is a section of reflective heat tape to be applied to the fuel tank surface in an effort to reduce heat absorption into the tank. Granted, not a deflector shield like the other side.... seems to do the job for the header pipe area and I am pretty sure the header gets hotter than the radiator exhaust air.

[slowinfastout]

I installed the second fan on my 990 and have been watching the right fuel tank for boil-over instances - so far none, and its been pretty hot here in VA. No deflection shroud or heat tape installed on the right side. What I do notice is a much quicker cooling rate (time the fans are on when running as a pair vs one).

[DirtJack]

Originally Posted by slowinfastout

I installed the second fan on my 990 and have been watching the right fuel tank for boil-over instances - so far none, and its been pretty hot here in VA. No deflection shroud or heat tape installed on the right side. What I do notice is a much quicker cooling rate (time the fans are on when running as a pair vs one).

We've had record heat and number of days over 100 in Texas this summer. I noticed my H2W second fan causing boiling of the fuel in the right tank when full almost immediately after installation. A couple of layers of insulating reflective foil tape fixed that problem. I'm glad to see H2W including the tape now, but a deflector would be a better solution. I have the 88 deg (Celsius) switch and I've had no problems of overheating in the TX blast furnace.

[DirtJack]

Originally Posted by Head2Wind

Recent addition to the kit is a section of reflective heat tape to be applied to the fuel tank surface in an effort to reduce heat absorption into the tank. Granted, not a deflector shield like the other side.... seems to do the job for the header pipe area and I am pretty sure the header gets hotter than the radiator exhaust air.

I don't know, I found the tank too hot to touch (before using insulating reflective tape) in the area where the fan output hits the tank.

[far]

Originally Posted by DirtJack

I have the 88 deg (Celsius) switch

That sensor did you buy in a auto store? or is a ktm stock part?

[DeeGee]

Now you're pissin' me off with your US of A heatwaves and 100 degrees

Although we had a hot one today here in Blighty, got up to 14 degrees earlier this afternoon and then the rain came!

[Blakduk]

Have had my 2nd fan kit for ages, will have to get around to installing it soon!