Hi, I just joined this forum! I am having some problems with my 05 bruin 350 4x4. It has 40 hours on it now and is completely stock. Anytime I go through water or muddy water and it splashs on the motor and everywhere underneath the plastic my machine bogs out, misses,wont respond to throttle well or even stalls out. The water is not deep enough that it is submerging the air box or filling the belt drive, it is maybe 10 inches deep. The problems seems to go away after 5 minutes of just driving it around. I heard it could be the intake taking in steam but my friend says he does not agree with that and it is definately an electrical component getting wet ( he say the spark plug coil).. Please any help or experience with this would be a live safer. Thanks![img]i/expressions/face-icon-small-confused.gif[/img]

 

If it sputters for around 30 second after you get out of the water, then it is probably steam. If it keeps doing it for alot longer than that, then I would put dielectric grease in the spark plug boot and every electrical connection that you can find.

 

My guess would be the spark plug too. You can try to duplicate this at home, While the motor is still not warmed up yet, but idleing, spray some water on the spark plug and wire. If it starts acting up, you found it. Dry everything off, and use the dielectric grease to water proof it.

 

hello i have a 05 bruin 2x4 i sink mine up to the seat crossing rivers and never had any problems i did pack plug cap with grease i would try that.

 

well when washing my bruin today had the machine idling but it was not hot yet. When I sprayed the motor with water it did not steam. Then I started soaking the plug area and coil where the plug wire goes and the machines idle remained the same and it also responded to throttle just fine. Do you think I should run it and get it very hot and hit the motor with water to create a bunch of steam to see if that causes the problem? If that doesnt work, any other thoughts. Thanks for your replies.

 

On the first post, you were saying it takes 5 minutes for the motor to start running good. That rules out steam. The carb and air snorkle pull in alot of air,and as soon as the steam disapates, it should start running good, if steam was the issue.
Spray other areas, like under the hood, or where ever you think water goes, when going thru the puddles. Its surprising the water on the spark plug didnt do it, ...thats the most common area for grounded spark from water.
When you find the spot , where water effects it, pull the connectors in that area apart, and dry then out, then pack them with dielectric grease, and reassemble them. Eventually youll come accross the offending connector.

 

Hondabuster,

When I said 5 minutes I think I was exaggerating, It is more like 2 minutes. Sorry, anyways I just got back from trying to find the problem. I had the quad in neutral running for a while to get hot. I put water from the hose directly on the spark plug and the coil and while I was doing that somebody was revving the throttle and it seemed to be okay. Then I filled a big bucket of water up and threw the whole thing onto the engine while revving it. Steam went everywhere but the engine continued to rev fine. It seems like I am duplicating what happens when I ride it but nothing is showing to be wrong. The only difference that I can think of is that on the trail I am in gear moving and sometimes in 4x4. Could that cause something different than me testing in neutral at home. Im getting so upset with this thing I want to get rid of it. My wifes honda recon 250 can go through the same things I am without any issues.

 

Even at two minutes, its not steam.

Youll get it fixed, and then youll like it again. I have a buddy who has one, and we're both impressed with it, and his doesnt sputter, so its not normal, and youll find the issue.

There is a difference, between sitting in neutral and driving while in gear. But ill bet when its sputtering, after a puddle, you could go to nuetral, and it would still act up. If going to nuetral clears it up, then thats a definent clue.

Maybe the next puddle that it happens on, stop and look under the hood and fenders, and see what got wet. Its gonna be a connector, thats a bit loose or wet, and its causing a short, until it dries out. It might be the connector at the key switch, or the wires going into or out of the coil.

Its posible you fixed it, and thats why you cant duplicate it now. It could be a wire with a bare spot, from rubbing against a sharp metal edge, and now that youve been in there looking around...you moved it away from the ground.

Is it possible that youre feeling the rev limiter? Have you been in reverse and gunned it? Thats what the rev limiter will feel like.