motor is cutting out

[MS_Warrior]

So I was riding today and if I'm at the bottom of thr power band just putting it runs fine but when I roll on the throttle about 3/4 through the throttle the bike spits and sputters till its at wot? I haven't done anything to the bike but open up the air box a little bit thought that was the problem so I closed it back up with some good ol duct tape and still no change. Now if it sits for a bit and cools down its fine but once it gets hot it starts doin it again. Any suggestions?

 

[88WarriorBoy]

hows the plug look and have you cleaned your air filter recently ?

 

[MS_Warrior]

hows the plug look and have you cleaned your air filter recently ?

I don't know what the plug looks like I haven't pulled it yet and it has a brand new oem filter on it. I haven't changed the plug since I got it so I'm sure its about time anyway.

 

[88WarriorBoy]

just pullit out and look

 

[88WarriorBoy]

and maybe your carb could use a cleanin

 

[MS_Warrior]

Well I just cleaned the carb about two weeks ago so I hope thats not the problem I'm going to pull the plug and check it. Hope its the problem its a cheap fix! Haha but I also think its time to go in and adjust the valves they are starting to make some noise

 

[alex456123]

it could be the stator; http://www.yfm350.com/forums/showthread.php?t=22007&highlight=stall+idle&page=1

 

[Rockgrenade]

Is your cam chain adjuster tight? If there's any air leaks into the engine it will cut out when your giving it a lot of gas in 4th gear and up. Check for any oil leaks too.