Just went to yz timing and put in ekp (evp?) needle#4, 48 pilot, 168 main jet. Power is there but I have to cross the void (wot dead space) before it kicks in. I'm thinking it must be clip position since I have good power on the bottom and strong on top. If I am correct, should I drop it to #3? Riding at about 4500 ft. Thanks for any info...don't want to pull the carb if I don't have to!