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View Full Version : squeling noise???


trailrider894
01-22-2009, 08:44 PM
when my 400ex starts when it is below 60 degrees it spquels horrible almost sounds like its about to fall apart. but after it warms up it stops completely and won't to it again for that day or two. what could this be and is it something i should worry about?? i can get a video up of the sound sometime tommorow if that is needed,
buck440
01-23-2009, 10:38 AM
power steering pump? :D
storms400ex
01-23-2009, 10:39 AM
maybe your belts:D
Pipeless416
01-23-2009, 12:20 PM
what oil viscosity are you using?
racerdan24
01-23-2009, 03:03 PM
Never heard of that one...Flux capacitor not fluxing?
buck440
01-23-2009, 03:29 PM
maby your power band is slipping?:confused:
trailrider894
01-23-2009, 03:40 PM
10w-40
racerdan24
01-23-2009, 11:43 PM
Hey trail...could it be the muffler bearing?
Pipeless416
01-23-2009, 11:51 PM
man, you guys are so helpful:rolleyes:. hey is there any way you could get a video of the sound? do you know what part of the engine the sound is coming from?
racerdan24
01-23-2009, 11:56 PM
I apologize......i was in a beer state of mind. Yes...the video would probably help us out...as well as what pipe said..were does it sound like it is coming from? Top, bottom of the motor?
trailrider894
01-24-2009, 12:01 PM
it is coming from the top-end. i will have the video link up somtime tonight hopefully. could it be the valves need adjusted??? oh and the only way i could get it to start this morning was to pull start it. i has the green neutral light and everything when i hit the starter button the green light dims and then nothing. it won't even turn over. i just replaced the solonoid a couple months ago. this thing has to many electrical issues!! any help is appreciated immensly!! i'm trying to get this stupid quad in order for my '09 xc season and its not looking like there gonna be much racing at the rate i'm moving!!
Pipeless416
01-24-2009, 12:20 PM
you might want to check your head gasket. when mine blew it had a whistling sound... then it started to sound like a machine gun.
trailrider894
01-24-2009, 02:25 PM
no it has been this way for over a year but only when it is cold outside. after the engine warms up once that day it doesn't make the noise again. i could outside right now after it has been sitting for a few hours and it will not the make the noise cause i drove it earlier.