Years ago, I got a ST46 but never used it. Starting a new model, I realized that it would be perfect size to try the legend that is ST46. Since I've never worked with it, I am looking for help getting some answers.
1) For inverted install the NVA and muffler sit on the right side of the engine. I am using both Randy Smith NVA and muffler but somehow, the muffler interferes with the needle. Is there a special needle for this? Longer one
2) The exhaust openning has a small divot on the muffler attachment surface. I am afraid it will leak exhaust. Is there a way to fix this? Will JB weld hold? Should I use aluminum brazing? how does one fix this. the divot is about 1/8 wide and 1/64 deep.
3) how big of a tank does one need for a pattern?