My M7 Bog Is gone. I figured it out!!!!

[thump426er]

My 06 bogs once in a while, never consistent though and usually only a small bog, but for sure noticeable. Was bogging lots last weekend in deep pow.

I mounted a switch on my dash for the fuel plug out of the ECU, the one that you're supposed to unplug if you use ethanol blended gas. When unpluged the ECU gives a 5% increase in fueling across the board. Now I only have 3 days of riding on it since I made the plug switchable (so I dont have to pop the hood all the time), but when I switch it as if the plug was unplugged the bog is gone.

I did the switch for other reasons but found this out when trying the switch in on/off settings while playing to see if I noticed anything else as a result. Well, the bog goes away as it had been bogging with the switch off.

 

[1M800]

What plug / wires do you unplug for the ethanol fuel? I knew there was a plug but was never sure which one it was?

 

[calgarysledguy]

I circled it in green. Kinda looks like a old style fuse holder

 

[thump426er]

Thats the one, mine was a total beetch to unplug.

CalgarySledGuy - thats a whole lotta snow in the front of your hood man, you running DS hood?? Mine with a DS hood did the same thing in heavy powder to the point it push through into my airbox and would sputter the engine.

 

[calgarysledguy]

Thats the one, mine was a total beetch to unplug.

CalgarySledGuy - thats a whole lotta snow in the front of your hood man, you running DS hood?? Mine with a DS hood did the same thing in heavy powder to the point it push through into my airbox and would sputter the engine.

Im running the stock hood. I put some frog skinns on the front holes.It has help alot. But its still getting in there on the front. There is a pretty big gap on my hood and bumper. When it warms up i might try putting some stick on foam or siliconing it and then cutting it after it drys to make a seal.......


I also stuffed foam around the airbox.Can kinda see in the picture. Like you sayed the snow was pushing through my airbox under it and causeing a sputter. Since i foamed around the box it has been perfect. But yes i would like to stop that snow from coming in....

 

[thump426er]

I riveted about an 1 1/2" tall strip of rubber matting inside where the hood hinges and have been snow free since.

Sorry to have the change of topic here everyone.

 

[AKHark]

Change of topic but i heard that using premium can make the m7s bog is this true?

 

[calgarysledguy]

Change of topic but i heard that using premium can make the m7s bog is this true?

This is what i have heard.Never tryed it. It says in the manual 87 octane.

 

[Rudy198]

so are you guys saying to pretty much block off any vent possible?

 

[furthur]

Im running the stock hood. I put some frog skinns on the front holes.It has help alot. But its still getting in there on the front. There is a pretty big gap on my hood and bumper. When it warms up i might try putting some stick on foam or siliconing it and then cutting it after it drys to make a seal.......


I also stuffed foam around the airbox.Can kinda see in the picture. Like you sayed the snow was pushing through my airbox under it and causeing a sputter. Since i foamed around the box it has been perfect. But yes i would like to stop that snow from coming in....

The snow-pro front bra's (can't find the part no. now...) work good to keep all kinds of junk out (sticks, leaves, snow, small animals...). I had a stick push my flex duct off one day and could easily ahve gotten snow into the airbox.

John

 

[Icedog]

I circled it in green. Kinda looks like a old style fuse holder

That pic looks different than my '08 M8. Do all M's have the "ethanol plug option"?

 

[PCDOC]

That pic looks different than my '08 M8. Do all M's have the "ethanol plug option"?

The new M's (07 and up I believe) don't have the ethanol plug.

Good post about the hose. I checked mine after reading this and it was melted shut. That would explain why my altimeter was never even close.

 

[Icedog]

The new M's (07 and up I believe) don't have the ethanol plug.

Thanks.

 

[ditch1000]

Another chime in for this thread.
Had a guy at work with a 06 M7 with a bog and I told him about what I read in this thread with respect to the barometric pressure tube filling up with snow and ice.
He sleded yesterday in deep powder, had a bog and thought it might be a clutching bog. So he thought for the hell of it checking the tube. Sure enough it was plugged with snow and ice. He cleaned out the tube and re-rerouted along the wiring harness by the steering post and said the sled has never ran that good since he bought it new.

 

[M8Cat4649]

So, does this go for the M8 as well gentlemen? I just happened upon the post and walk out to my shop and saw that my tube is also pointing down to the belly pan. So, should i pull it our and run it along the wiring harness that goes next to the steering rod and oil reservoir? Thx

 

[ditch1000]

I sure would pull it out and run it along the wiring harness like the pics on page #1. On my 08M 1000 my has pointing down in the nose the same as you described and mine was plugged with ice and snow in the tube. Mine did not have a noticeable bog but it was really inconsistent throughout the day of riding. I can't wait to try mine with the hose re-routed.

 

[M74me]

I circled it in green. Kinda looks like a old style fuse holder

I always wondered if something needed to be switched for ethanol crap. My wifes 03 F7 has the convenient switch. Pfffffffffff,,who need's that!?

 

[666drifting]

so my box broke and then i tore my sled apart for other reasons. but when i put it back together i just used some sealer on the box to hold it together. it broke right by the tube. also can you guys blow air down the tube? mine i cannot, might be the problem

 

[CATCRAZY]

Anyone else have any luck moving the tube??

 

[catsclimbtrees]

Your problem might be a backshifting problem?