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View Full Version : Does the 400ex ever overheat?


suZuki400
08-17-2005, 09:00 AM
In since the 400ex isn't liquid cooled, will it over heat, if any?
Chino886
08-17-2005, 09:03 AM
yes it will, if I run mine at the dunes wide open for a while, then let it idle, it will overheat, I have air scoops that help a great deal.
suZuki400
08-17-2005, 09:17 AM
So would it be smart to have a liquid cooled engine?
Chino886
08-17-2005, 09:19 AM
I am very happy with my 400, I have a high comp piston in it and I added a oil dipstick temp gauge, I keep an eye on it.
Rico
08-17-2005, 09:22 AM
Originally posted by suZuki400
So would it be smart to have a liquid cooled engine?

Until it gets clogged with mud and then overheats and locks up.

I've never had a problem with my 400ex over heating and it feels good to pass those that do have radiators in muddy conditions because their piston is welded to the cylinder wall.....:eek2:
Pappy
08-17-2005, 09:31 AM
Originally posted by Rico
Until it gets clogged with mud and then overheats and locks up.

I've never had a problem with my 400ex over heating and it feels good to pass those that do have radiators in muddy conditions because their piston is welded to the cylinder wall.....:eek2:

ahhhh...an advancement in technology that is surpassed by simplicity:devil:
250rAL
08-17-2005, 10:06 AM
Just remember that it's air FLOW that does the cooling. If you sit in place idling for very long, shut it off.
suZuki400
08-17-2005, 02:37 PM
that clears a lot of things up for me, thanks. is it really THAT important to have shock resoirvors on your shocks for jumping and excessive heat?
AnthonyWhite
08-17-2005, 03:14 PM
I run race fuel (110 octane) in my 400 and have never had a temperature problem. Regular pump gas will make a big difference but if you dont let it idle for a long time and have air flow over the cooling head and oil res then you should be fine.
suZuki400
08-17-2005, 08:30 PM
I wouldn't let it idle for a long time, if I did, then I would just turn it off, lol.
400exc
08-17-2005, 09:56 PM
gas prices these days, u cant let it idle w/o spendin 20 cuks to fill it back up! lol
Zackie
08-17-2005, 10:55 PM
how much are air scoops or what ever?

and how do you know if it overheats


and what exactly does it do when it overheats?
Chino886
08-18-2005, 06:14 AM
Air scoops vary in price, I picked mine up from Tinner on this forum for less that $50.

You don't want to find out what happens when it overheats, I have a thermometer dipstick.