pic is not of ours although it's the same model. Our engine's history is that it was pushing a bateau round Courville's crawfish ponds in Loreauville, LA until recently.
The tank had, and still has, some varnish/sediment/wtf in it and when in use, the stuff comes out into the little glass bowl until the jets get plugged and the engine will die. Take a sec, clean it out, recrank and generally it starts on first pull. As we've used the engine more and more, it seems that we are finally knocking out all the crap in the tank. And a little judicious use of SeaFoam doesn't hurt either.
The little critter is as dependable as the 5hp 4-stroke Honda that was on my F-27GS trimaran. 'Course that ain't saying much, I kinda don't like engines in general