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02-07-2012, 11:47 PM
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#1 (permalink)
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Junior Member
Member #15955
Join Date: Feb 2012
 ( 0)
Posts: 26
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Trx400x info
Iam about to by a new 2012 trx400x and just wanted to know if they overheat because I ride a lot and do not want my wheeler overheating on me. I know Hondas super reliable so I'm not to worried about it just wanted to know if anyone's ever had problems with them over heating
Last edited by 2012honda; 02-08-2012 at 01:13 AM.
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02-08-2012, 06:09 AM
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#2 (permalink)
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Senior Member
Member #5283
Join Date: Sep 2010
Location: Winchester, VA
( 0)
Posts: 1,703
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No, never had any problems out of my 08’ however, the stock 400’s do get hot and start to loose power after a lot of riding, you can reduce this problem by re-jetting the quad with a 155 main jet (if you leave her stock). I put a slip on pipe, open air box and a jet kit and my quad never overheats now. They will get hot if your riding really slow, 1st or 2nd gear since they are air cooled but never anything detrimental. The 400ex has a bullet proof motor! Feel free to ask me any performance or general questions!
__________________
2008 TRX400ex
42 pilot jet
Stage 2 Dynojet kit
K&N Powerlid
Lexx MXe slip on
Armadillo full body and swing arm skid plates.
450r front suspension
Dan in VA
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02-08-2012, 03:51 PM
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#3 (permalink)
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Senior Member
Member #11638
Join Date: Jul 2011
Location: Virginia
( 0)
Posts: 399
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Last summer I was constantly heading back for some shade and a cool drink. But the quad was fine!
: )
__________________
2000 400EX
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02-08-2012, 05:07 PM
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#4 (permalink)
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Super Moderator
Member #948
Join Date: Oct 2009
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Posts: 22,447
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Welcome to the forums.
__________________
Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!
You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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02-08-2012, 05:21 PM
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#5 (permalink)
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Senior Member
Member #14099
Join Date: Nov 2011
Location: western ky
( 0)
Posts: 1,354
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Welcome to the forum.
__________________
01 Rancher 350 manual shift 4x4
27" Kenda claws
P&P head
04 250ex Wife's ride
Removed the baffle and rewelded spark arrestor back in,Jetted,Uni-filter
04 YFZ450
Port and Polish,12.5:1,Dyno-jet kit,K&N air filter with custom intake tube,Cam mod,Pro circuit Ti4,GYTR nerf bars.
01 400ex
Port and Polish
Pro Circuit T4
Uni-filter
Dyno-jet 160 45 pilot 2 1/4 turns out
Custom foot pegs
With many things to come
It is a good trail quad with a lot of torque
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02-08-2012, 10:35 PM
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#6 (permalink)
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Senior Member
Member #11680
Join Date: Jul 2011
Location: Sardinia, OH
( 0)
Posts: 121
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My curtis sparks header glows at times lol
__________________
2002 400ex with,
450r front shocks
AC nerfs forsale: 400ex shocks
Fly handle bars fly cr bars/grips
maxxis razr rear tires stock full exhaust
Curtis Sparks exhaust
Wiesco 11:1
Dyno Jet with 42 pilot jet
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02-09-2012, 06:01 AM
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#7 (permalink)
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Senior Member
Member #5283
Join Date: Sep 2010
Location: Winchester, VA
( 0)
Posts: 1,703
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^^^ Your probably running really lean man! You rejet for your pipes?
__________________
2008 TRX400ex
42 pilot jet
Stage 2 Dynojet kit
K&N Powerlid
Lexx MXe slip on
Armadillo full body and swing arm skid plates.
450r front suspension
Dan in VA
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02-10-2012, 02:58 AM
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#8 (permalink)
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Senior Member
Member #11680
Join Date: Jul 2011
Location: Sardinia, OH
( 0)
Posts: 121
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I have a 150. Only glows at an idle. Need to adjust it down and maybe a lil more fuel. I think it's common for the Curtis sparks to do that. Couldn't find much more out
__________________
2002 400ex with,
450r front shocks
AC nerfs forsale: 400ex shocks
Fly handle bars fly cr bars/grips
maxxis razr rear tires stock full exhaust
Curtis Sparks exhaust
Wiesco 11:1
Dyno Jet with 42 pilot jet
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02-10-2012, 06:05 AM
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#9 (permalink)
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Senior Member
Member #5283
Join Date: Sep 2010
Location: Winchester, VA
( 0)
Posts: 1,703
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If your running a full exhaust system your running way lean! You need like a 190 main keihin jet. Are you runing any other mods. Also does your quad ever pop or backfire?
__________________
2008 TRX400ex
42 pilot jet
Stage 2 Dynojet kit
K&N Powerlid
Lexx MXe slip on
Armadillo full body and swing arm skid plates.
450r front suspension
Dan in VA
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02-10-2012, 07:31 AM
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#10 (permalink)
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Senior Member
Member #11680
Join Date: Jul 2011
Location: Sardinia, OH
( 0)
Posts: 121
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Curtis spark calls for I think a 160 jet with a UNI filter. That's all I got except I do have a standard bore 11:1 piston just installed
__________________
2002 400ex with,
450r front shocks
AC nerfs forsale: 400ex shocks
Fly handle bars fly cr bars/grips
maxxis razr rear tires stock full exhaust
Curtis Sparks exhaust
Wiesco 11:1
Dyno Jet with 42 pilot jet
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