2016 M8000's flooding????

Lund

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Can't say my 16 has flooded, it's backfired pretty good a couple times when starting it again after stopping for a few minutes.

Backfiring as you said is caused by an over fueling issue. Generally caused by fuel collecting in the pipe.
 

mountianguy

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One thing I see guys do is after a hard or long pull roll up to there buddies and hit the kill switch. I have found this will cause backfiring or flooded conditions, I always let my idle normalize before shutting down. The engine is loaded with fuel and needs 10 or 15 seconds to clean up, following this I have not experienced any issues. Now this wont fix a programming issue but it is a good practice to follow. It will be interesting to see if the DSI has addressed this issue?
 

roadlinur113

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One thing I see guys do is after a hard or long pull roll up to there buddies and hit the kill switch. I have found this will cause backfiring or flooded conditions, I always let my idle normalize before shutting down. The engine is loaded with fuel and needs 10 or 15 seconds to clean up, following this I have not experienced any issues. Now this wont fix a programming issue but it is a good practice to follow. It will be interesting to see if the DSI has addressed this issue?

X10 on this. While I don't own a Suzi powered Cat, my best buddy has 3 lay down 800s and always follows that procedure and so do I even on my etec's.......sure seems to work. Not always the case but sometimes the simple fixes work. As a side benefit it let's the heat soaked engine cool down some too while idling.
 

ktmsx350f

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If your sled loads up after a long pull it's not running right and AFR's are way off. A sled will clear out under wot more then idle with no load. The leanest point is after high rpm when throttle is snapped closed and rpm is still high. No need to idle down a FI sled for 15 seccconds when you stop.
 

mountianguy

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If your sled loads up after a long pull it's not running right and AFR's are way off. A sled will clear out under wot more then idle with no load. The leanest point is after high rpm when throttle is snapped closed and rpm is still high. No need to idle down a FI sled for 15 seccconds when you stop.
Believe what you like I know from my limited experience it works and on all brands.
 

ktmsx350f

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I've worked on sleds for a long time usually 40 or 50 a winter and work as a tech this is not necessary at all. I've had 6 Actic cat's, 3 skidoo and 4 polaris never had to do to a single sled. Idle does not clean it out or make sence. On restart you may need a little throttle because they do not use an IAC or drive by wire
 

roadlinur113

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I've worked on sleds for a long time usually 40 or 50 a winter and work as a tech this is not necessary at all. I've had 6 Actic cat's, 3 skidoo and 4 polaris never had to do to a single sled. Idle does not clean it out or make sence. On restart you may need a little throttle because they do not use an IAC or drive by wire

My method of a cool down doesn't result in me repairing 40-50 motors a season.......your results may vary :cool:
 

ktmsx350f

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Customers never one of my own yet. Im not going to give a lesson on how fuel injection works but what your doing is not necessary and doesn't make sence if you fully understood how it all works
 
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tmo1620

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Been riding cats a long time and have always let the sled idle down then shut it off, if you come flying in to a stop and hit kill switch while rolling and rpm's are elevated it will cause flooding and backfires, same symptoms as bailing and pulling tether out. There is no need for an extended period of idling down, you are right there, but letting rpm's come down to normal idle can and will help with flooding and backfires and I think thats what everyone is alluding to......... but hey your from the mac and just spew knowledge like crazy so do what u like and we'll keep doing what we like. Also kudos to you, your posts are starting to make sense a bit...........hooked on phonics worked for you

Customers never one of my own yet. Im not going to give a lesson on how fuel injection works but what your doing is not necessary and doesn't make sence if you fully understood how it all works
 

ktmsx350f

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I wouldn't shut the sled while moving but was just explaing that sitting for 10 to 15 seconds idle like they said does nothing. Not sure what fort mac has to do with anything. No one is really from fort mac and only a few retards try to ride sleds here not enough snow ever to ride a sled. Not the last 5 years anyway.
 

tmo1620

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I wouldn't shut the sled while moving but was just explaing that sitting for 10 to 15 seconds idle like they said does nothing. Not sure what fort mac has to do with anything. No one is really from fort mac and only a few retards try to ride sleds here not enough snow ever to ride a sled. Not the last 5 years anyway.

I never said you rode there or were even born there, but from my experience everyone I have met that works there thinks they are the smartest group of people alive, and sometimes it takes nearly 10-15 seconds for it to idle down to 1600-1700 rpm, at least any of the 800ho cats ive had


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ktmsx350f

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If your sled takes 15 seccconds to idle down then you have an issue like a dirty throttle body or vacuum leak. I would disagree with that fort mac is full of some of the worst mechanics and stupidest people I've ever worked with lol. I have done over 10 years of drivibility and electrical, i specialized in it, took lots of chourses and was top of my class. Not saying i know it all cuz i don't but its something ive done alot of and get lots of calls to help other techs. Every year we fix sleds and bikes at home that the 2 local dealers can't and or thrpw parts at.
 

Allseasons

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It's at least 10 seconds for my cat to catch its breath and stabilize rpm after a hard tear for sure. M1000 wasn't that way though
 
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