Pretty new to outboards, had my motor on the water for first time today and it runs great except when the throttle is wide open it doesn't seem to rev high as other outboards I've used almost like it really doesn't scream like the motor should. Noticed the spark is weaker in bottom plug (doesn't jump as far as the top one but still looks blue at night). Also being not the best mechanically I have not attempted to take the carb off and clean it yet, do either of these sound like my problem? Any advice appreciated thanks