Nytro,wont run fine

[Crisse55]

Nytro start fine on cold start,but once it warm up it will end up dying and hard to start,If im driving arround it will rev on all 3 cylinder but when releasing throttle it will start acting up and die,Engine also seem to missfire at 75% throttle i bough the nytro like this and the guy said it was running fine and since i bough it it run like crap.Where should i look at?I just replaced a coil and all 3 spark plug(cr9eix)Iridium Ix plug

 

[4strokes]

I would bring it in, let it set tilted forward and to a side and siphon from the low corner. if its froze, let it set overnight like that

 

[Crisse55]

I would bring it in, let it set tilted forward and to a side and siphon from the low corner. if its froze, let it set overnight like that

It has fresh gas in IT

 

[4strokes]

Are you sure it doesn't just have fresh gas on top of the water like most of my customers? new gas will blend it right in. takes hours to settle to the corner. see it all day every day. its step one for me. critical to let gravity take it to the corner. I suppose I would then look for nest in the box. simple stuff first. then plugs, then a call to the seller who would seem to have already had issues. did you rotate the coil around each cylinder?

 

[Crisse55]

Are you sure it doesn't just have fresh gas on top of the water like most of my customers? new gas will blend it right in. takes hours to settle to the corner. see it all day every day. its step one for me. critical to let gravity take it to the corner. I suppose I would then look for nest in the box. simple stuff first. then plugs, then a call to the seller who would seem to have already had issues. did you rotate the coil around each cylinder?

i'm going to drain the gas tonight and let the gas tank dry just to be sure there's no water in it,i'll put fresh gas in it 87Oc since dealership recomend 87octane because the engine been built for this type of fuel.i'll also look the air filter just to be sure the air filter isnt clogged,all 3 coils are the same,you can swap them only the plug need to be in order for proper firing.The sled alway been stored in a garage from previous owner and it's still stored in a garage right now