2016 M8000 Wont Start

Diamond Ranch

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Hi Everyone I am hoping I can get some help. This sounds like a common issue with these sleds so I hope people know how to fix it. The first time my sled would not start it sat in the trailer when it was -25F over night. I was able to get it to start by holding the throttle wide open and pulled and it finally went. Now this time 1 week later I was up in the back country shut it off to let it cool down and it would not start again, finally it went, nothing seemed to make a difference throttle wide open with key and kill switch on or off. About an hour later we had to cut a pretty good side hill I was about 6-7 rpms and I accidentally hit the kill switch. It would not start we sat there for over an hour pulling like crazy, playing with the throttle, kill switch and key but NOTHING worked. We finally pulled a plug had spark and it was bone dry! so we put some gas down the cylinder and boom she fired right up. It ran ok the rest of the day had a weird sputter in the mid range but it got me home. So I pulled it in the shop put it on the stand reved it up to 6500 rpm and shut the kill switch off while holding the throttle and what do you know it wont start again and the cylinders are bone dry of fuel and no matter how many times you pull on her it wont inject fuel so WTF!! Its a brand new sled only has 270 miles on it. I am thinking either TSS, TPS, or a bad ECU any help would be greatly appreciated. I have 4 2008-2010 M8 and in over 10,000 miles on two of the sleds I never had and issues like this. I have ran a bottle of heet through it so there should be no water in the system I only run 91 ethanol free fuel
 

neilsleder

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Bye pass that throttle safety switch see if that helps. Easy to to do.


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CatMan16

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No help from the dealership? Must still have warranty.


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Diamond Ranch

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Yes it still has warranty. I am going to call the dealer tomorrow, I just like to have a good idea of what needs to be fixed before it goes in. Nothing worse than a dishonest doctor or a dishonest mechanic. neilsleder can you walk me through how to bypass the TSS. Thanks
 

neilsleder

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Can you walk me through how to bypass the throttle safety switch? Are they the same as the pre 2000s?

I think it the same idea any way. Like said take the throttle block apart and you will see the switch then just cut a wire. But I can't remember if you wire the 2 wires together or leave them apart?


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Pink-Inc

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I think it the same idea any way. Like said take the throttle block apart and you will see the switch then just cut a wire. But I can't remember if you wire the 2 wires together or leave them apart?


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Just have to unplug the TSS and leave it.
 

Jgibos

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Next time it dont start try unplugging the gauge cluster and see if it will start. Also di electric grease all the connections. If that dont help its the wiring harness. I had mine go. Never did find the broken wire but changed harness then never had a problem again til stator went at 1400 miles
 

Diamond Ranch

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Thanks for the replies. The dealer unhooked the kill switch and tss and at that point it would start. I have ran it now like this for 200 more miles and it has started well so far. It still has a sputter at 5500 rpms other than that she rips! I own a 17 Axys 163 as well and the Cat will eat its lunch.
 
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