Honda 400 ex problems
Jul 24, 2006 | 09:44 PM
#1
Thread Starter
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Weekend Warrior
Joined: Jul 2006
Posts: 12
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Honda 400 ex problems
I have a 2000 honda 400 ex, the only problem,s im having with it, are that when i drive through a water hole i can get through it fione but when i get out it starts to sputter and loose tons of power and sometimes stalls and also i went through a water hole today and i drove it home and now it wont even stsrt it ran a couple times but backfired and died.
Jul 25, 2006 | 12:28 AM
#2
Trailblazer
Joined: Jul 2006
Posts: 30
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Honda 400 ex problems
i'm new to four wheelers but not new to engines in general..it sounds like some how water is getting to your spark plugs...my cousin's polaris was doing the same thing, when he took it in to finally get it fixed they guys said that some how water got in the engine and was fouling out is spark plugs....
Jul 25, 2006 | 01:05 AM
#3
Pro Rider
Joined: Oct 2004
Posts: 770
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Honda 400 ex problems
drain ur oil put fresh filter and then run it for like 20 min then do it again.... This needs to be done!! also change spark plug,, should solve ur problem.. Also clean airfilter really good.. hope this helps.. should solve it no problem... If not let us know..
Jul 25, 2006 | 04:23 PM
#7
Pro Rider
Has Been Around Here Quite Awhile!
Has Been Around Here Quite Awhile!
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Honda 400 ex problems
It's sucking it in from the airfilter. Your hitting it to hard and splashing it up into the intake. Check out your airbox for water and clean your filter and let it dry before oiling it.
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Jul 26, 2006 | 01:14 AM
#8
Weekend Warrior
Joined: Apr 2006
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Honda 400 ex problems
sounds like you got alot of loose air box connections and or exhaust. i would tighten them up.
Your air comes form the top of your frame by the handle bars.
My buddy used to sit in 3 feet of water shut his wheeler off help me out and then start his 400ex right up and drive out no problems.
Your air comes form the top of your frame by the handle bars.
My buddy used to sit in 3 feet of water shut his wheeler off help me out and then start his 400ex right up and drive out no problems.
Jul 26, 2006 | 01:27 AM
#9
Pro Rider
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Honda 400 ex problems
Recomend an outerwears prefilter helps water.not waterproof but water repellent.still helps but i dont think its your problem.I agree with most answers spark plug wires.I had my old 2001 ex in over three foot of water and barley made it but it still ran at the end of the day.Wouldnt recomend to anyone beat the sh*t out of her and it kep on ticken.BELIEVE IT OR NOT!
Jul 26, 2006 | 12:41 PM
#10
Weekend Warrior
Joined: Jul 2006
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Honda 400 ex problems
I am having this same problem. I didnt know it could be because of the spark plug but I did notice I had about 1/3 of an inch of water in my air box. It stalled for me...but after cranking it a bit with some dry air through the cycle it started up and took a bit before it ran stable.
