P500 Deep water problems/exhaust

[Junyer82]

2017 P500 snorkeled everything. Dielectric greased everything. So here's the problem. On 2 separate occasions I've gotten in deep enough water that my exhaust has been underwater and it has died. I've been in this deep more than twice but it has only died twice. On both occasions I went in the hole in 2wd and got myself stuck/spinning. So I let off the gas to shift into 4wd and in the seconds it takes to idle down it has died. Has anyone else dealt with this or have any ideas? Any help is appreciated and I can possibly give more details if you need them. Thanks in advance

 

[Neohio]

If your exhaust pipe is under water, letting off the throttle will suck water back into the muffler. Your engine will not create enough pressure usually to push the water out of the muffler and dies. If you like to play in deep water, try extending the exhaust above the water line.

 

[Russ989]

Don’t let up on the skinny pedal!!!

 

[100Acre]

I found myself in deep water in the creek crossing in 2wd and just kept pushing through. I didn't realize I was in 2wd until I got across. I'm gonna snorkel my intake and my exhaust line too.

 

[Junyer82]

I'm thinking if maybe I slowly let off the gas rather than just removing my foot from the gas, it would stay running. There's gotta be a solution. I've thought about extending the exhaust also. May need to research on that some more

 

[Alan aka Davinci]

I have been in deep water often but after a couple days the wife forgives me because my snorkel works well.

 

[Junyer82]

I have been in deep water often but after a couple days she forgives me because my snorkel works well.

My snorkel works perfectly. It's when the exhaust is underwater that I have the problem

 

[trigger]

Put it in 4wd before going in the deep water.

 

[Junyer82]

Put it in 4wd before going in the deep water.

Lol yeah I guess. I usually only put it in 4 if I Know it's bad or if it stops moving in 2. Thing is though...I've driven different bikes unsnorkeled with the exhaust underwater and have never had this problem and I've seen many others snorkeled and not snorkeled that has had exhaust under and it not die also. Guess I'm just gonna have to snorkel the exhaust too

 

[Mudder]

Would something like an inverted “p trap” with short downward tail piece work? For lower profile, less piping, no higher than rack.

 

[Junyer82]

Would something like an inverted “p trap” with short downward tail piece work? For lower profile, less piping, no higher than rack.

Yeah that'd prolly work. But I'm the type of dude that if I'm gonna add more pipe then I'm just gonna go all the way up.

 

[500oneer]

I have slammed my p500 into 4wd a couple of times at full throttle. Is it good for it? No,but I would rather do that than have it die underwater or roll over down a hill. 6,600 miles no problems.

 

[Junyer82]

I have slammed my p500 into 4wd a couple of times at full throttle. Is it good for it? No,but I would rather do that than have it die underwater or roll over down a hill. 6,600 miles no problems.

I had it grind a couple weekends ago cuz I stayed on the gas when I put it in 4. Was too late! Hole sucked me in! It was only top of the seat deep. Didn't die tho!

 

[Rocket]

I'll tell you something I learned 40 years ago,,,,,,,,,,,,, " ""Save four wheel drive for WHAT"?? """ Meaning,,,,, use 4-wheel drive ALWAYS, ALWAYS, ALWAYS when you are OFF ROAD!!!

 

[Junyer82]

I'll tell you something I learned 40 years ago,,,,,,,,,,,,, " ""Save four wheel drive for WHAT"?? """ Meaning,,,,, use 4-wheel drive ALWAYS, ALWAYS, ALWAYS when you are OFF ROAD!!!

Good advice. But I like to play

 

[Little_g]

I have slammed my p500 into 4wd a couple of times at full throttle. Is it good for it? No,but I would rather do that than have it die underwater or roll over down a hill. 6,600 miles no problems.

I haven't slammed mine into 4 wheel per say but, I know when I'm in situations like this and deep water I quickly let off and shift VERY FAST and then on the gas again immediately. Don't want that water coming back in. It sucks that there isn't enough compression to keep it running if a person was alone. I'd rather leave it run then shut it off.

 

[Bastardchild]

Yeah that'd prolly work. But I'm the type of dude that if I'm gonna add more pipe then I'm just gonna go all the way up.

Check out my thread where i build my exhaust stack. No worries now. I typically leave it running in deep water if i have to get out of the seat and help someone or something, but there has been a few times where ive shut it off in rack deep water and its always started back up.

 

[William]

Just let off gas slightly, push brakes until tires stop spinning, kinda like stalling it up. Shift to 4wd then slowly let off brakes. Keep rpms up the whole time enough to not go dead. I did this a couple times, worked good.

 

[Mudder]

Check out my thread where i build my exhaust stack. No worries now. I typically leave it running in deep water if i have to get out of the seat and help someone or something, but there has been a few times where ive shut it off in rack deep water and its always started back up.

Looking for thread, link.

 

[Bastardchild]

Looking for thread, link.

Ive got no idea how to send links and stuff lol. Im not good with computers and stuff. It might be part of when i built my aluminum bed build because that was part of it. Was just tryin to give him ideas lol.