Can you tell any differance with and without the spark arrester and core as far as power goes.

 

no. the spark arrestor is just a mesh wire screen that goes in the end cap. the quiet core is a series of tubes welded together. i doubt in obstructs flow just redirects it to change the sound level.

 

FYI i think ronayers.com doesnt have all those parts in stock anymore! i ordered the parts like a weekago and the site still says Sucessfully processed, waiting to be filled. so i am assuming that they dont have it all in stock, so looks like ill be waiting to get the carb parts. damn. o well big gun box should be at home after work today!!!!!! cant wait.

 

You might want to try the HMF Engineering method.

#125 main jet
#40 pilot jet
2 turns out on the idle screw
remove the snorkle