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that's an interesting one!! my first thoughts are plug wires.
 

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Discussion Starter · #3 ·
That's what I thought or ecu.
I heard the rzr 900 and other utvs have it where only the one plug fires then after machine starts other wire will. These Newer models
 

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never heard that interesting because then the injector for the non-firing cylinder would have to be shut off also.
 

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Discussion Starter · #5 ·
Yes I thought so to but that's where the ecu tells it to fire or in would have fuel in cylinder. Again I'm not sure on my 850 but that's what a dealer told me for the 900 rzrs
 
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