Serious midrange bog.

[SUMMIT TREE]

I ve been running a can from specialty sled with no issues for two full seasons but now I've developed a bog ,sputter farting type issue that just showed up here my last trip on dec 12 th. Sometimes I can hold it wide open and it just sputters bad with no power at all then let off and hit it again and it lites up and pulls hard? A couple times it was pulling hard and decreased into a sputter with about half to 3/4 power. Haven't had a chance to look into it yet but if any one has any ideas?

 

[cnelson6]

Same thing happened on a friends. It was broken reeds

 

[Nitrobkr]

2012,13,14 all have done this for me. My 12 and 13 cleaned up as I broke In tho. I actually thought it was the mufflers having to burn out a bit...
I'm gonna thro an old mbrp from my 12 on my 14 this weekend and try it. Shot in the dark. If it works perfect, if not oh well only 3-400km to go.


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[Sask Sledder]

Theres another thread where a guy was having trouble with finicky rpms. It was the TPS. Needed a reset.

 

[SaskSummit]

My sensor in my HPS came out that is why mine was bogging. Even with it out it ran ok in the hills. Once i screwed it back in it ran great up high and down low.

 

[dsenych]

I had the same issue on my sled a while back. I changed the RAVE solenoids, check valves, pulled my RAVES, only to find out my can did not keep enough back pressure on the engine. I put the stock exhaust on and had no issues so I went to a different style of can and no issues since

 

[SUMMIT TREE]

Theres another thread where a guy was having trouble with finicky rpms. It was the TPS. Needed a reset.

that could be the issue too, cuz my throttle cable was sticking that day so maybe thats the problem.( I've since replaced the cable so maybe it just needs a reset)

 

[Sask Sledder]

that could be the issue too, cuz my throttle cable was sticking that day so maybe thats the problem.( I've since replaced the cable so maybe it just needs a reset)

Repair manual states a reset is required after throttle cable replacement. They'll check your cable adjustment too.

But unless there was an issue with the TPS to begin with, i cant see a reset changing anything. The cable itself isnt connected to the computer. Just the throttle itself.