Water and my 420FM - Honda Foreman Forums : Rubicon, Rincon, Rancher and Recon Forum

KESS079 · 05-15-2009, 01:15 PM

Well, this one has me scratching my head.

When I am out riding, if I hit a puddle to fast, the machine dies...very litle sputtering..almost dies instantly. It usually fires right back up..but this should not be happening.

It also happens if I go slowly into deep water....I'll be moving along and then it just dies......I've never had milky oil and the airbox is dry after this happens...so what the ****? And like I mentioned...it fires right back up...I haven't tried to start when I'm still in the water.. but as soon as I get winched out it fires up again.

Any help or similar problems out there?

thanks for any help.

Shutitdotnet · 05-15-2009, 07:10 PM

Sounds electrical to me, maybe something getting wet and going to ground... Break out the dielectric grease and start pulling everything electrical apart and putting that crap in it starting with the spark plug boot!!!! Best of luck to ya

bayou_nut · 05-15-2009, 10:08 PM

Was doing that with my arctic cat just dielectric grease the plug real good and give it a try that was my problem.

KESS079 · 05-18-2009, 08:26 AM

Thanks guys. I tried the grease and still no luck.....dealer said to remove the side panels. The guy said that when water hits the exhaust, the steam has no place to go and is right beside the intake and thats whats makes it stall. like i said....air box has dust in it when i check...do you guys think this could actually be the problem?

ERL8838 · 05-24-2009, 07:24 PM

MY 420 ES WAS DOING THE SAME THING UNTIL I ADDED A SNORKEL BUT I ALSO PUT DIELECTRIC GREASE IN PLUG BOOT AND THE COIL TERMINALS AT THE SAME TIME SO NOT SURE WHICH FIXED THE PROBLEM BUT HAVE HAD IT IN WATER OVER THE SEAT MANY TIMES SINCE AND NO PROBLEMS

KESS079 · 05-24-2009, 10:44 PM

Well, it turns out the dealer wasn't kidding. By taking the side panels off I did everything but put the intake under water and at different speeds and it seemed to do the trick. Looks like a snorkel if I want the side panels on!!

Thanks for the replies guys.

dodge310 · 05-28-2009, 09:35 PM

I'd like to know what the deal is with this. My brother had an 08 4x4 ES. His done this when we went to Black Mountain. However, My 08 2x4 has never done this. I've been in deeper water etc than he ever was and it has never done this.

So I wonder if is something with the 4x4's? Just seems strange.

05-15-2009, 07:10 PM	#2 (permalink)
Shutitdotnet Honda Lover Join Date: Sep 2008 Location: Dania Bch, Florida Posts: 421	Sounds electrical to me, maybe something getting wet and going to ground... Break out the dielectric grease and start pulling everything electrical apart and putting that crap in it starting with the spark plug boot!!!! Best of luck to ya __________________ 06 Rubi 26" Mudlite XLs (soon to be 28" Silverbacks, if I keep this thing) Snorkel HL 2" Lift 05 400AT spawn child of satan - Sold That SOB

05-15-2009, 10:08 PM	#3 (permalink)
bayou_nut Honda Lover Join Date: Mar 2009 Location: Cut Off, Louisiana Posts: 365	Was doing that with my arctic cat just dielectric grease the plug real good and give it a try that was my problem. __________________ 08 Foreman (camo) HL 2" Lift + fender kit HL gear reduction Triangle snorkel Detroit gearless locker HMF swamp series xl (with snorkel) EPI clutch kit Gorilla front axles K&N air filter with jet kit 2"wheel spacers 27" mud gears 2500 warn winch with synthetic rope Turner u-joint 08 Artic Cat 366 (meow) 28" Outlaw m/s/t ///Airdam clutched 2" highlifter lift 2500 warn winch 09 Arctic Cat Mud Pro 30" silverbacks 3k Warn winch (more top secret stuff)

05-15-2009, 01:15 PM	#1 (permalink)
KESS079 Honda Rider Join Date: May 2009 Posts: 3	Well, this one has me scratching my head. When I am out riding, if I hit a puddle to fast, the machine dies...very litle sputtering..almost dies instantly. It usually fires right back up..but this should not be happening. It also happens if I go slowly into deep water....I'll be moving along and then it just dies......I've never had milky oil and the airbox is dry after this happens...so what the ****? And like I mentioned...it fires right back up...I haven't tried to start when I'm still in the water.. but as soon as I get winched out it fires up again. Any help or similar problems out there? thanks for any help.

05-18-2009, 08:26 AM	#4 (permalink)
KESS079 Honda Rider Join Date: May 2009 Posts: 3	Thanks guys. I tried the grease and still no luck.....dealer said to remove the side panels. The guy said that when water hits the exhaust, the steam has no place to go and is right beside the intake and thats whats makes it stall. like i said....air box has dust in it when i check...do you guys think this could actually be the problem?

05-24-2009, 07:24 PM	#5 (permalink)
ERL8838 Honda Rider Join Date: Mar 2009 Location: SHREVEPORT,LA Posts: 1	MY 420 ES WAS DOING THE SAME THING UNTIL I ADDED A SNORKEL BUT I ALSO PUT DIELECTRIC GREASE IN PLUG BOOT AND THE COIL TERMINALS AT THE SAME TIME SO NOT SURE WHICH FIXED THE PROBLEM BUT HAVE HAD IT IN WATER OVER THE SEAT MANY TIMES SINCE AND NO PROBLEMS

05-24-2009, 10:44 PM	#6 (permalink)
KESS079 Honda Rider Join Date: May 2009 Posts: 3	Well, it turns out the dealer wasn't kidding. By taking the side panels off I did everything but put the intake under water and at different speeds and it seemed to do the trick. Looks like a snorkel if I want the side panels on!! Thanks for the replies guys.

05-28-2009, 09:35 PM	#7 (permalink)
dodge310 Honda Rider Join Date: May 2009 Posts: 8	I'd like to know what the deal is with this. My brother had an 08 4x4 ES. His done this when we went to Black Mountain. However, My 08 2x4 has never done this. I've been in deeper water etc than he ever was and it has never done this. So I wonder if is something with the 4x4's? Just seems strange.

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