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Old 09-16-2008, 04:52 PM
Weekend Warrior
Join Date: Sep 2008
Posts: 10
Default scrambler 400 overheating

hey i'm new to the forum but anyway i just bought a used '96 scrambler 400 and only payed $1000 for it but i am having a problem with it overheating, the fan ceased up so i put a new one on and wired it to a switch due to the temp. sensor is also bad and wont tell the fan to turn on, is there a thermastat on it or could it be the water pump, any help would be much appreciated
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Old 09-16-2008, 05:05 PM
kukerdan's Avatar
Pro Rider
Join Date: Apr 2000
Location: NY
Posts: 1,213
Default scrambler 400 overheating

probably a thermo like any other liquid cooled

you should get it hooked up right, works like a charm

i have the same bike
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Old 09-16-2008, 06:53 PM
Weekend Warrior
Join Date: Apr 2008
Posts: 7
Default scrambler 400 overheating

no thermostat on polaris 400 2 stroke , yes could be water pump if still overheating
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Old 09-16-2008, 07:45 PM
Weekend Warrior
Join Date: Sep 2008
Posts: 10
Default scrambler 400 overheating

well i just did some trouble shooting and the water pump is pushing water, and after pulling the radiator out of the bike i was able to wash it very, very well and got the large amout of mud out, also discovering that the radiator does have some damage and i know that it was in a front end collision (from the previous owner) i've narrowed it down to a bad radiator, after running for a good 10-15 min it had not overheated at all, as compared to being very hot in about 3min. before
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Old 09-19-2008, 12:31 AM
scrambler400enoge's Avatar
Shapeshifter Rider
Join Date: May 2008
Location: Mishawaka,Indiana
Posts: 4,033
Default scrambler 400 overheating

check the elbow coming out of the radiator fluid resivoir it could be split.
Gary Johnson 2012.
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2000, 400, 96, atv, heating, overheating, polaris, polars, pump, ratiator, scrambler, stroke, thermostat, water, waterpump

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