running hot - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 5 Old 07-17-2010, 09:25 PM Thread Starter
Join Date: Jul 2010
Location: Phoenix/Denver
Posts: 5
Question running hot

I have a 97 that runs warm(around 1/2 at speed). The problem is at a light it gets pretty close to H. It hasn't pegged but I would like it to stay cooler. Let me add I live in Phoenix and it's HOT 110+. Doese Engine Ice coolent live up to it's advertising, Is there a larger fan ect.
Any suggestions would be great.
Thanks in advance.
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post #2 of 5 Old 07-17-2010, 10:59 PM
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Join Date: Nov 2009
Posts: 68

"Normal" anti freeze should do the job if everything is in good working. However, your radiator is 13 years old and may need to be rodded out or at the very least a good flushing and then refilled with anti freeze. Its been 103 to 106 here the past couple of days and my needle climbs to the half way point when stopped in traffic but drops back to the 1/4 mark once under way. I don't have any personal experience with engine ice so I can't comment but I think before you chase after a "cure" you need to make sure everything else checks out first. Fan, thermostat, water pump radiator flow etc.

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post #3 of 5 Old 07-17-2010, 11:27 PM
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That's good advice. +1

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post #4 of 5 Old 07-17-2010, 11:44 PM
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Join Date: Jul 2009
Location: Yuba City, Ca
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Live in roughly same climate. I have the therma bob so I run at about the midpoint (190) and it climbs to about 2/3 (220) at lights. To slow it down I use 75%H20/25% coolant/ and water wetter. It slows down the temp swings during the summer. 25% coolant is plenty for the winter temps around here. Might try engine ice as an experiment some day. I've heard people use it in the 685/705 kits as they tend to run hotter.
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post #5 of 5 Old 07-18-2010, 12:35 AM Thread Starter
Join Date: Jul 2010
Location: Phoenix/Denver
Posts: 5
Thanks for the advice. The fan water pump are working properly. I will flush the radiator and fill it with new coolent. Might as well experiment with the engine ice while I'm at it.
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