Exhaust bog or tps?

springcreek338 · Feb 6, 2014

My sled has an exhaust bog when I stop in deep powder then attempt to go again. The only way to make it run is to reach down and clear the snow from the exhaust. Could this be tps or just normal? 2013 800 pro 163 9000'-1100' elevation. Tki belt drive geared 2.25. New plugs didnt help. (Did this before new belt drive also). Otherwise stock. Snow is very deep right now and this is getting aggravating. Any help would be great

friscospices.com · Feb 6, 2014

Look and see if your exhaust deflector is bent over the pipe. 2 years ago mine did and it was exactly as you described.

Leftys · Feb 6, 2014

This is a normal situation in deep snow. The term used for that is called "pipe plug". Anytime you stop or are stuck in deep snow with your exhaust outlet covered and let your engine continue to run while looking around or digging out it is best to clear out your exhaust outlet. The exhaust gases are not escaping as fast as the engine is producing them, therefore to much backpressure is being created in the pipe. The engine is going to run very rich until the exhaust can escape out of the pipe and flow freely again. Hope this helps.

jeepin270 · Feb 6, 2014

Put a turbo on with tunnel dump exhaust. You won't ever have that problem again

springcreek338 · Feb 6, 2014

bog

Thanks I was hoping it was something I could fix but that does makes sense.

jdw1 · Feb 6, 2014

This vid shows why they don't run correctly, the pipe actually sucks air/exhaust back in, when the pipe is blocked it can't breath in or out correctly.
Part way down the page is the exhaust simulation on what happens, it's easy to see what's happening.

two stroke theory

http://www.cash4tools.ie/advice

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Exhaust bog or tps?

springcreek338

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friscospices.com

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Leftys

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jeepin270

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springcreek338

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jdw1

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