Nytro turning over but not firing?

[Yamasquaw]

Ran it a week ago around yard and ran great. Went to -25 for a week and won't start now . Thought it was frozen but it warmed up outside and had it in garage warmed up. Still turns over and Might fire up for a few seconds then stalls? Try again and will turn over with no firing? Any hints or help will be great before I head out seriously looking at it, seeing we have no snow now anyways. Did a bunch of searches on it found nothing? Thanks

 

[nauti1]

Change the plugs.

 

[mnman309]

Is the fuel pump cycling on when the key is turned?

 

[Yamasquaw]

Pump is cycling, put abit of isopropyl in fuel tank too. Kinda weird that it was running mint a few days ago.

 

[sammyg]

My nytro just did the exact same thing, changed the plugs and it fired right up

 

[Yamasquaw]

Maybe I'll have to try that out first.

 

[poplawchuk]

I had the same thing happen to mine a few days ago, it was a bit low on fuel so I filled it up, but still took about 20 mins to get it started. I kept cycling the key to get the fuel flowing. I would try a shot of quick start/ether and see if it will fire. That should help narrow down the problem.

 

[Crewchief47]

Probably fouled the plugs, especially if you 'moved' it around under power without letting it get good and warm.

 

[Yamasquaw]

Last time I rode it , was for 20 min ripping around yard and always let it warm up good. I'll try plugs tomorrow though. Thanks. New to the 4 stroke.

 

[MNBlizzard]

My nytro just did the exact same thing, changed the plugs and it fired right up

X2...I went thru a similar deal this past week. I fouled brand new CR10EK's. Put in the CR9E's and started on the first crank.

 

[Yamasquaw]

I did not think the 4 stroke would foul plugs like a 2 stroke. My Viper would foul once and a while but not to the point of not running.

 

[09NytroRTX]

Could be a freak deal where fouled the plugs if not warmed up until red light is off.. that is one thing i make sure i do everytime i ride my nytro is make sure all lights are off until i blip the throttle.

 

[radianguy]

Did you check for fuel? That's the first thing you should check.

 

[Yamasquaw]

Thanks boys! Plugs were the answer! Fired right up!

 

[Crewchief47]

I did not think the 4 stroke would foul plugs like a 2 stroke. My Viper would foul once and a while but not to the point of not running.

The sleds seem to be real sensitive to fuel fouling for some reason. Not saying you did this but firing it up for 10 seconds to let your buddies hear it is a big no-no on these thoroughbreds.