why does my 110cc pit bike smoke so muc when i drive it and give it trottle.?

Holby

New member
when i leave my xsport ticking over it only smokes little. but when i give it loads of throttle it smokes qui alot. i have just changed the oil because it was smoking. but it doesnt smoke as much as it use too. but then when i give it throttle it smokes more.
 
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