RE: Cold start assist
I used a micro torch that you refill with cigarette lighter butane on a super tight pinch on a norvel 061. I am sure it would work to warm a diesel head. most likely would work on a diesel in very cold weather, you also might need to block a few fins with aluminum foil wrap to keep the heat, this has been done and works also for good running in cold weather. Motor Boy seems to have no issues looks like a little more ether or a squirt of starter fluid works too martin