My buddy brought me his yz 250 after he did a top end and it didnt start. Its getting spark, fuel through the fuel line, electric is plugged in. After smelling the plug it seems like its not getting fuel to the plug. I flipped the reeds because i could see light through them and a new set is on the way. Also planing to clean the carb but after looking at the throttle valve it looked really clean. It was running 2 weeks ago. Ive also done an ether shot in the plug hole to no avail. Its his first bike and he sprayed wd40 in the cylinder and did not hone it. This is the first 2 stroke ive worked on could it be a timing issue? Where should i go with this?