The problem is the shift cable from the engine to the out drive, over time they get stiff and need to be changed, when shifting the switch momentarily stalls the engine for a smooth shift. this is a common problem stalls the engine too long , type in your problem into a GOOGLE search and there will be many forums on this. You can buy the kit on EBAY for about $50 or the entire package witch included all boots etc which is recommended for about $150 , it is a easy job just time consuming you can Google or YOUTUBE directions the socket you will need I made one out of a 9/16 cheep deep socket by grinding it again easy .boat repair place will charge $900 if you and a friend have some time takes about 6 hours if you can turn a wrench and read simple directions it is a do it your self project... DO NOT ADJUST YOUR SWITCH THIS WILL DAMAGE YOUR OUTDRIVE The correct way adjustments can be found on GOOGLE or YOUTUBE they are a measurement of 6" on one cable and no tension plus 4 turns on the other