Twist Throttle with Predator 212

#1
Hi, ive been having an issue since upgrading the stock db30 engine for the predator 212. To max out the throttle on the predator engine I have to twist the stock db30 throttle much farther and i think beyond what it is meant to be twisted. It has gotten stuck a couple times halfway down when released and just doesnt feel smooth when I release it after holding it at its max.

Is there a trick to using the stock throttle safely? Or is there a good replacement that would support the long travel of the predator engine?
 
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