I tried one as a sailboat auxiliary, it didn’t have enough power. I then got an Elto Ace and it did a better job. Models with serial numbers greater than 07000 were built in 1941. Being light weight, they won’t take much abuse. Now over 70 years later they are treasured collectors items.
The Check valve lift is .050" – Valve spring pressure wis 28 grams – The Float level with the float chamber full, from the top edge of the bowl to the gas level is ⅝". Flywheel nut torque is 25 foot pounds. Early models used a Champion J4C, Later models with the longer thread length(in order to keep people from stripping out the threads) Used a Champion H10C. Spark plug torque is 19.5 to 20 foot pounds.
