Both my 700prairie and my 750bf ran hot and from what I understand, that is just the way v-twins run. It doesn't run hot to the point that the hot indicator light comes on, but close. It gets very hot on my left leg.....ugh!!! I have two questions. 1st, what can I run in the radiator that works better than antifreeze (ethylene glycol is antifreeze) and 2nd, is there any heat shield that I can use? I don't think the heat is coming from the exhust lead, but I could be wrong. HELP!!!!

 

i agree hopefully somebody knows your left leg gets real hot bruteforcebob told me after about 100miles they start running cooler im at 88miles not cool yet

 

Instead of antifreeze try running Engine Ice in your radiator. It's advertised to lower engine temperatures by as much as 50 degrees. I can't say it lowers it that much, but it certainly helps. I'm not sure about any shields, but the engine ice will help quite a bit. On my kfx-700, I've noticed the fan doesn't kick on quite as much since using the engine ice. If that doesn't seem to work you may look into an aftermarket radiator thats a little bigger. I'm not sure if you can get them for those models or not, but it's just a thought.

 

where do you get engine ice

 

i installed a temperature gauge, and i was shocked. my fan diddn't even come on until 240*. that night i installed a toggle switch (wired to the two blue wires on the temp switch on the radiator) so i can turn the fan on and leave it on. this helps, but on a long hard climb it gets hot...

the header pipe is a big part of the heat on the left leg. some guys run heat wrap and say that helps. the biggest thing i can think of is to make sure the jetting is correct.

monty

 

engine ice deffinatly works real good to lower tempertures so i would give that a try, you could also hardwire the fan so its on all the time and try one of those in-line coolers.....those are susposed to lower tempertures by 15-20 degrees too.........

 

You can get Engine Ice from rockymountainatv.com It runs about $17 for 64 oz.

 

Thanks for the good advice. Another question is: Do any of you have this problem? I though it just might have be my 700prairie, but when my bf750 ran just as hot, then I thought it was just the way v-twins run.

 

two cylinders, twice the heat....it's just the nature of the beast.

 

has any of the tips helped on the heat? I just bought a bf750i.--- Wish I hadn't. --my left leg feels like its in a fire every time I ride.---only have 12 miles on it--be a long time befor I hit the cool down of 100 miles.------Any More Tips??