Originally Posted by emperor
thanks for the advice.
now just need to track a suitable outboard down, and hope its a good one.
Most brands 2 strokes 10/15 short shaft engines weights the same, about 41/42 Kg, same 4 strokes 10Kg more. Tohatsu is on of the lightest engines available, their 10/15/18 models weights 41 Kg, so if possible to get go for the 18, excellent weight/power ratio. Tohatsu has released a 2 strokes 20 HP engine, that weights a bit more, but less than 25/30 HP older brothers that weights 52 KG. If going for 4 strokes both Tohatsu 15/20 weights the same 52 Kg.
Another interesting weight/power ratio if portability is a must is the Tohatsu 9.8 HP, 2 strokes weights just 26 Kg, and 4 strokes same model 37 Kg. All very reliable & simple engines, a breeze to maintain.