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why is it overheating

This is a discussion on why is it overheating within the Yamaha YFM700R Raptor (2006-Present) forums, part of the Performance /Technical category; its about -20 (give or take) where i am right now, i went outside started my quad up as i usually do just to get ...


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Old 01-03-2008, 01:18 PM   #1
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Default why is it overheating

its about -20 (give or take) where i am right now, i went outside started my quad up as i usually do just to get the fluids circulationg for a bit, but when i came back out the anti freeze was pissing out all over the ground, and now the resevoir is empty....does anyone know why this happened???
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Old 01-03-2008, 05:36 PM   #2
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If you are pushing coolant out of your overflow. Chances are you have a blown head gasket. Exhaust gasses are entering the coolant lines in the head and pressurizing the cooling system and pushing out the fluid..
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Old 01-03-2008, 06:41 PM   #3
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Quote: Originally Posted by petedog9 View Post
If you are pushing coolant out of your overflow. Chances are you have a blown head gasket. Exhaust gasses are entering the coolant lines in the head and pressurizing the cooling system and pushing out the fluid..
+1 that is what i say
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Old 01-03-2008, 06:48 PM   #4
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Quote: Originally Posted by petedog9 View Post
If you are pushing coolant out of your overflow. Chances are you have a blown head gasket. Exhaust gasses are entering the coolant lines in the head and pressurizing the cooling system and pushing out the fluid..
the coolant was bubbling in the resevoir and it looked like it was spraying out of the over fow hose but it was hard to tell, does that sound like it could be it?
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2006 raptor 700
houser racing +1 steering stem/anti-vibe bar mount
tag t2 bars
asv levers
itp baja wheels black
maxxis razr2 tire
dobeck tfi controller
full fmf factory 4.1 system
velocity intake
dura-blue x-33 race axle
Houser + 2 a arms

Last edited by Hefe; 01-04-2008 at 10:13 AM.
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Old 01-03-2008, 06:49 PM   #5
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Quote: Originally Posted by rap7hundred View Post
+1 that is what i say



+1???
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2006 raptor 700
houser racing +1 steering stem/anti-vibe bar mount
tag t2 bars
asv levers
itp baja wheels black
maxxis razr2 tire
dobeck tfi controller
full fmf factory 4.1 system
velocity intake
dura-blue x-33 race axle
Houser + 2 a arms
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Old 01-04-2008, 05:29 AM   #6
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+1 means that i agree with what was already posted.. Im adding myself to that post instead of typing the same thing he did.
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2006 RAPTOR 700
CUSTOM PAINT
Monster duals
+2 swingarm
JE 11:1
Hotcams stage 2
PCIII
PRO-DESIGN INTAKE
15T
MAXXIS RAZR2s
a few cosmetic goodies
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Old 01-04-2008, 12:02 PM   #7
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Yeah man. You got a blown head gasket. Not too difficult of a repair nor is it very expensive. But its a real pain in the arse. Have you ever had the head off before? Its pretty rare that a stock internal motor blows a head gasket... They are usually sealled up pretty tight from the factory. Once you get the head off you can find the blow by point and see if the head needs resurfacing...
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'06 RF Raptor 700 Ltd Ed. LTE / PCIII / K&N /RF built 11:1 / Web stg. 3 / springs / P&P / Elkas / Flexx bars/ Rox risers / lots of bling

'04 raptor red / white full Yoshi pipe GYTR jet kit 160/165 K&n with outerwear (wifes ride)
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Old 01-04-2008, 02:25 PM   #8
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Quote: Originally Posted by petedog9 View Post
Yeah man. You got a blown head gasket. Not too difficult of a repair nor is it very expensive. But its a real pain in the arse. Have you ever had the head off before? Its pretty rare that a stock internal motor blows a head gasket... They are usually sealled up pretty tight from the factory. Once you get the head off you can find the blow by point and see if the head needs resurfacing...


What could of caused it to blow???, do you think its the fact that its minus 20 here if not colder...and i rode all last winter in some pretty harsh conditions?
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2006 raptor 700
houser racing +1 steering stem/anti-vibe bar mount
tag t2 bars
asv levers
itp baja wheels black
maxxis razr2 tire
dobeck tfi controller
full fmf factory 4.1 system
velocity intake
dura-blue x-33 race axle
Houser + 2 a arms
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Old 01-07-2008, 01:15 AM   #9
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I once started my quad just to get the fluids moving, also. I noticed the head pipe was glowing red hot! and the radiator fan was NOT on. I drove it around the block carefully untill it seemed to cool off. Remove and clean the electrical connection at the motor for the Fan! I have added that to my 30 hour to do list.
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