Tech: How to replace your coolant on a Predator - Polaris ATV Forum
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post #1 of 27 (permalink) Old 03-28-2010, 05:36 PM Thread Starter
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Tech: How to replace your coolant on a Predator

First off this will be my first tech write-up, so be gentle. I decided to drain, flush, and replace my coolant in my 07 Predator today, and thought I would document the steps for my fellow riders.

1) First off, I got my coolant, distilled water, and white vinegar together. After reading tons of positive reviews, I decided to go with Engine Ice. I also read that the system should be 100% purged of any old coolant prior to adding Engine Ice.




2) With the engine cool, I uncapped the radiaitor cap and found the drain screw (it is the bottom bolt on the water pump, I included a pic of the exact one to unscrew) It is a 8mm bolt, and was a little snug, but be careful not to be to hard, these bolts are easily breakable. As soon as I got it loosened, the green fluid started pouring out quickly. Since I have nerf bars, and a skid plate placed a little funnel to let the fluid flow nicely into my drain pan.






3) This step may not always be needed, but since it was probably never completed on my Pred before I decided to pull off the lower radiator hose and clean it up/install for any issue. I also cleaned the overflow lid, cap, filter and radiator cap.





4) I replaced the 8mm bolt into the water pump. I took the water, and put it into the vinegar with a 50/50 mix. I proceed to fill the radiator with my mix until it was full, and started up the bike for approx 15 minutes to warm up.

5) After letting the Pred cool down for 30 minutes or so, I repeated the everything in step 2. I actually decided to repeat the whole process again to insure that all of the old coolant was 100% out. I also tipped the quad over towards the water pump drain hole and probably got another 2-4 oz out. At this point, I also unscrewed the overflow bottle, and dumped out any fluid that made its way in during the 2 flushes.





6) I tightened up the water pump drain bolt, and started to fill the radiator with Engine Ice. As my friend was filling, I squeezed the upper and lower radiator hoses to help "burp" the system and purge out as much as air as possible.





7) Last step, I swear!! I filled it until it started to overflow, replaced the cap and ran the Pred for 10 minutes. I it cool a little, and filled the radiator again until it was topped off again. I also filled the overflow bottle to the line on the back. I used most of the bottle of Engine Ice, with just a little left over. I plan on running it for 30-45 minutes the next day or so, and check the fluid level again, fill as needed.


Hope everyone got something good from this, if you have any questions/comments please feel free to ask. Also, for a quick tip if your chain has any light rust on it, take it off and place it in some clean oil for a day or so. It will really lube it up well!!


07 Polaris Predator 500
Yoshimura RS3 slip-on
UM Racing aluminum airbox w/K&N filter
ITP Holeshot HDs
Pro Aluminum skids, nerfs, and bumper
Powermadd handguards
Shockwears shock covers
PRM radiator scoops
PD 13T front sprocket & X-ring chain
Amsoil oil w/ K&N filter
Engine Ice coolant
ODI Rogue Grips
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post #2 of 27 (permalink) Old 03-29-2010, 07:09 PM
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nice tech write up redneck

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post #3 of 27 (permalink) Old 03-29-2010, 07:54 PM
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nice, very nice! dont be shy red, i think this is sticky worth for the predator section!
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post #4 of 27 (permalink) Old 03-30-2010, 02:26 AM Thread Starter
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Thanks guys, I'm going to try to do this type of thing everytime I do something new. I figure if I can help a couple people, it would be worth it.

07 Polaris Predator 500
Yoshimura RS3 slip-on
UM Racing aluminum airbox w/K&N filter
ITP Holeshot HDs
Pro Aluminum skids, nerfs, and bumper
Powermadd handguards
Shockwears shock covers
PRM radiator scoops
PD 13T front sprocket & X-ring chain
Amsoil oil w/ K&N filter
Engine Ice coolant
ODI Rogue Grips
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post #5 of 27 (permalink) Old 03-31-2010, 08:49 AM
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what about disconnecting the spark plug wire and bumping the starter to get it to spin the water pump?, should help move some of the coolant out of that area a little easier
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post #6 of 27 (permalink) Old 04-04-2010, 05:26 AM
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Keep us up on how that coolant does. My Pred runs kinda warm and I changed the coolant, but I'd like to find something better.

2005 Predator
Stage 1 Hot Cams CFM oil tank UM nerf bars and heel guards
Pro Aluminum skid plate and front bumper
Pure Polaris pipe K&N filter Jet Kit
Renthal bars, chain and sprockets Battery relocated
Civic style intake

1997 Trailboss
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Modded cylinder fitted w/ 400 V-Force reed valve
Milled cylinder head
Namura piston and rings .040 over
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post #7 of 27 (permalink) Old 04-04-2010, 08:01 AM
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I had followed this thread to swap out coolant on my 04 predator and it went pretty smooth...I was in the same boat as i felt mine was running a little warm, the only thing I did different was mix my own solution as i would have to order engine ice and wait for it. I just used prestone (40%), water(60%), and then added red line water wetter (4oz) in a gallon and found that my fan did not come on as often as the last time I went riding and it was considerably warmer out this time around. Great job on the write up
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post #8 of 27 (permalink) Old 04-04-2010, 05:06 PM Thread Starter
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Well, a little update for everyone. I took the Pred for out for about 4 hours over the weekend, it was about 20 degrees hotter then the last time I rode. The fan only came on a couple times, and it was mainly while sitting still or riding slow thru some tight trails. Other then that, I'm pretty pleased with this.

Chronix > Glad this helped someone out!!

07 Polaris Predator 500
Yoshimura RS3 slip-on
UM Racing aluminum airbox w/K&N filter
ITP Holeshot HDs
Pro Aluminum skids, nerfs, and bumper
Powermadd handguards
Shockwears shock covers
PRM radiator scoops
PD 13T front sprocket & X-ring chain
Amsoil oil w/ K&N filter
Engine Ice coolant
ODI Rogue Grips
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post #9 of 27 (permalink) Old 05-17-2010, 10:12 AM
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Nice job in showing the pics and thanks for being so detailed...some of us need that! Do you know (or anyone else) if this procedure would be the same on my 2009 525S Outlaw?
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post #10 of 27 (permalink) Old 05-26-2010, 03:56 PM
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nice write up... I want to do the same to my xp,, i think it will take more than a half gallon though

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