Take the burner assembly out and clean the burner ignition stick and thermocouple with steel wool and reassemble. I have the same water heater and I have to do it once every three months. Been doing that for four years. Takes 10 minutes.
I have had the Mr. Heater cooker for over 10 years. I little to hot for my Otter Cabin, plus I have had to replace two snow suits for the grandkids. I use the reg Buddy and it works so much better and quiet.
I have the 185 Trophy with a 135 merc and 6.0 merc. That little merc has saved me several times. I love the Trophy in big water and Miss river rough weekend water.
I have a Otter Cabin (older model which I added refletic to the top). I load it by myself, plus have plenty of room for two. I pull it by hand most of the time. I love the Otter.
I buy leaches in May by the pound for a LOW trip. Left overs go into a icecream bucket with a 1/4″ of washed sand on the bottom. Change the water 7 to 10 days wih filtered water. Keep them in the frig. Just used the last of em two weeks ago. They need the sand to clean themselfs.