My freind has a kids yamaha 60 3 wheeler and says it dies at wot when warm. He says it fouls the plug? Ay experience out there????

 

if the spark plus fouling, only two thing that can cause that, rich mixture ( oil -gas) should be mixed around 40-1, the next thing is the carburator jetting, too much fuel, if the carbs never been rejetted and the atv stock then i would say the aircleaner is dirty or needs to be replaced.

 

if it's actually foaling the plug go with the above post.. Clean the filter and see what happens.... If the exhaust is stock and filter box still on then all shold be good as far as jetting...

My boy has a TriZinger also that's what he started on.. We took off the airbox switch t unifilter sock and bypassed the oil mixture pumps and premixed it by hand.. Fun little trikes, we now have it hanging in the garage for future use!