My friend just got a 05 yfz 450 and he tells me that he cant find the spark plug on the quad??? Do the yfz's have it under the gas tank? Also since he cant get it to turn on since he cant find the plug, do the yfz's take the oil just like the raptor 700's... you pore the oil in the black countaner then turn ON the quad, rev it a little and then turn it off and check the dipstick for the amount of oil in it?
Thanks.

 

plug should be under the tank its prolly somewhat hidden, and let the engine warm up a few minutes shut it off then check the oil, if your adding new oil then yea put some in till at full mark then let it warm up shut it off check it again.

 

Perfect reply man, Thanks!!!