I have a Hunter
42 with a Yanmar
. The question is when I shift from neutral to forward there is a thump. The other direction from forward to neutral there is no noise
. Same with reverse. I alway reduce the throttle when shifting.
Another question please. What size hose comes of the mixing elbow
. 3 or 4 inch exhaust
hose. Mine is original and wire inside beginning to rust meaning leakage. I am not near my boat so I can not measure myself.