I sold those boats in my hobby shop, I would change the stock drive line, Bruce at gizmo motors will sell you what you need. collet, prebuilt cable only needing to be cut to length, drive dog, speed master strut, and brass tube for stuffing box, It will make the stock boat much better. also a 105 degree header will alow you to get the right pipe length so your tuned pipe does more then plum out the exhaust. the wrap to center makes it to long to perform, you want around 12.5" from exhaust port to the biggest part of the expansion chamber. Also a good balanced and sharped prop is worth its weight in gold, Chris at dasboata.com is a great source, just tell him what you have and he will set you set up, they are pricey but bad props are like bad tires on rc cars. the pre built cable works with a round collet.also do away with the teflon liner that is used by ready to run companies that do not want to tell you to simply remove cable often to re grease it till the grease builds up in the stuffing box. It also creates drag the whole length of the cable and they do fail. Once you go to round cable you use a 9/16 and 5/8 wrench and you will have the cable out in 30 seconds. also if it does not push freely back in then your cable alignment has change, this happens from pulling the pull starter from time to time. this will also make your drive line fail if not maintained. You will never check it with a teflon liner and a cable that you need to remove the strut to get out. Teaching your grandson model maintenance is a value in life that most do not realize for younger modelers. On that strut you have you only need a .250 nose piece,.250 lead teflon bearings and .250 reducer then mod the strut from metric to standard to except them you do not need a new strut.yours has already been up graded. i hope this will help others that read your thread.
Last edited by expresscraft; 07-06-2016 at 05:29 AM.