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Michael Hill

2011 Grizzly 700 FI Wont Fire

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My Grizzly started dying in the middle of riding it.  Most of the time it was as I was decelerating or idling.  It did this for a while and I thought it was just bad fuel.  I had siphoned out most of the tank and put fresh fuel in it thinking this would fix it.  However, after riding it some with the fresh fuel it was still doing it.  Last night it died and I couldn't get it restarted.  The battery is 8 years old so I thought maybe this was not keeping enough charge so I put a brand new battery on it.  Still nothing.  I pulled the spark plug to find I had zero spark.  Does anyone have the service manual that walks you through all the steps you are to take when you aren't getting spark?  I was just going to go back to the coil next and keep tracing my way back.  I'm not sure what resistance should be at the coil nor exactly how to test it.  Also not sure how to test the plug to make sure that is good.  

 

Any help you guys could lend would be greatly appreciated.

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Of all the things, it turned out to be a faulty spark plug.  I have been riding ATV's and dirt bikes for 30 years and in all that time I have never had a spark plug go bad.  This Grizzly had 60 hours on it when the plug went bag - I have to assume it was just a quality defect in the manufacturing of the plug.  Very random in my opinion.  

 

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You know for the first time I had the same thing happen this past weekend.   EFI Rancher 420 started doing the same thing.  

In thought for sure it was a fuel delivery problem.  Pulled the plug after I barley got the bike back to my truck.  Turns out no spark.  I took a shot and popped a new plug in and bang! Like new the bike ran great.  Strange but simple fix thankfully.   

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