Spark Plug Probelms.

[TaylorM7]

My spark plug was getting covered in that black stuff. when i was driving the bike it was fine but when i would turn it off, then go out to drive it again , it would fire up but it would bog out. so i would have to take out the sparkplug and clean it all off and replace it and it would be fine again. but i was not reving it very hard that day is that the reason why?

[zillaguy89]

lugging the bike too much in the wrong gear can do that.....also your jetting may be too rich, but if it runs good when you open it up then its probably close

[MX86]

check your needle and seet, and floats. sounds like fuel is being dumped into the cylinder while your not running it

[kxrider]

im having tha same problem but its when i jus putt putt around also i run rich in oil so it might be ur mixture

[TaylorM7]

yea its just my oil to gas ratio, dad put way to much oil. haha