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Guys, I'm going to look at a used sled this weekend.Its supposed to be an EFI 550 EXT.I'm not sure what year excactly cause I'm only going on what a buddy was telling me.I think its a 93-94 going by his description.I'm just wondering how well EFI worked in those years.Is it reliable?Efficient?

Any help is greatly appreciated.
 

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i had a 93 EXT 550 EFI and it worked great, just never try to boost the battery.......ruins the voltage regulator, make sure to take it off and charge it slowly......


When's Winter Coming Back?​
 

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The year sounds about right because I think they went to the 580 in '95. I liked the 550 better than the 580 for trail riding. The newer EFI's are nicer because you don't have a battery, but that should be a great sled.

You don't have to believe everything you think!
 
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