Help 06 M7 bog/sputter under throttle and also goes to one cylinder?

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duramaxboy

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• Dec 16, 2011

• #1

Its a 06 m7 153" has slp can,vforce 3 reeds,and alumium bigger intake tube. Seems boggy on low end but when i pin it it has a bog/sputter and than sometimes goes to running on 1 plug. It idles a little high too and when i pull the throttle tight back to the handle bar at idle it wants to cut out and stuff. would the tps do all this or no? help

SKIP DOWN TO MY LAST POST AND READ NOW ALSO. THANKS

 

Last edited: Dec 29, 2011

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Devilmanak

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• Dec 16, 2011

• #2

Could be lots of stuff, start with the basics, comp check. Could be a dead cylinder, that is easiest to rule out before going into fuel and electronics.

 

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Devilmanak

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• Dec 16, 2011

• #3

You have a Box on that thing? Seems like too many mods to not have one, but I could be wrong. If so, you could have cooked a cylinder for sure.

 

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duramaxboy

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• Dec 17, 2011

• #4

ill get a comp check. so thats it probably you dont think bad gas or anything from last year?

 

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jds

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• Dec 17, 2011

• #5

Try putting the stock can back on. That has been a prob on many cats some work good with a can some dont

 

RACINSTATION

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• Dec 17, 2011

• #6

Sound like a failing fuel pump.

I would check TPS for sure, but that would be my guess.

Also, this is assuming that it ran fine before with the mods and now the problem has started.

 

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Devilmanak

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• Dec 17, 2011

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You are running last years gas? Ok, even more basic than comp check, try some fresh fuel. May not make any difference, but no point doing anything with bad/old fuel.

 

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diggerdown

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• Dec 17, 2011

• #8

Devilmanak said:

You are running last years gas? Ok, even more basic than comp check, try some fresh fuel. May not make any difference, but no point doing anything with bad/old fuel.

Click to expand...

I don't think I've ever seen a year with so many guys having all this trouble, bad gas is 90% of the issues.

 

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Devilmanak

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Donnelly, ID

• Dec 17, 2011

• #9

It's funny, I like to use fuel from old parted sleds to light my burn barrel. If I have a tank of fuel it sits in the yard and I pour it in, then light. Last one was from one of Todd Tupper's 01 race sleds, it hadn't been run in many many years. That fuel wasn't even fuel any more. Usually I pour some gas in, throw a burning rag in and run, lol. This old stuff I could light with a torch standing right there next to it, no flash and would hardly light.

 

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duramaxboy

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• Dec 29, 2011

• #10

ok i drained the gas put new stuff in. new plugs and a little sea foam in also. It seems like it ran good on and off right after if you kept the rpm up,if i let it go down to a low rpm and wind it back up i have to get rid of the bog than it runs good again. Now it sat for a week after i did all that and it just falls on its face again when you gun it and idles real high. Could this be sticking power valve cables or bad ones or out of spec? or bad clutch? please help

 

A

arcticattach

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libby, montana

• Dec 29, 2011

• #11

could be the can packing comming apart inside had this happen 2 times in a 1000 miles. take the can off shake it if clanks at all its junk,when mine did this it acted the same way.

 

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duramaxboy

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• Dec 29, 2011

• #12

no ive tried 3 differnt cans also

 

Stack

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• Dec 29, 2011

• #13

Have you checked the "smart" valves inside the fuel tank at the bottom?

Stack

 

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duramaxboy

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• Dec 29, 2011

• #14

no have not?? what to look for?

 

Stack

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• Dec 30, 2011

• #15

If you run the sled low on fuel the pickup valves can get stuck causing similar issues you speak of. This happened on my M7

 

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duramaxboy

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• Jan 1, 2012

• #16

anyone else?

 

RACINSTATION

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I would check the fuel pump regulator. Shine a light in the tank and make sure the excess fuel is coming out the regulator, back into the tank. I have seen the regulators go bad and the fuel will spill out the sides of the regulator and you will erratic fuel pressure.

 

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dp2826

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• Jan 2, 2012

• #18

Did you try new plugs? How bout the injectors? Try tapping on the injectors "lightly" with a screwdriver or something comparable while you have it running.