ORIGINAL: torque wrench
I don't think the actual compression ratio of our Diesels is anywhere near the 16 - 20 to 1 that we calculate using the bore and stroke. I have tried to run Davis Diesel fuel in my Saito .80 which has a 14.4 to 1 compression ration and I can't open the throttle past halfway because it has too much compression. It starts on one one flip using a glow plug with no element in it.
It seems like if it will run with the davis fuel being over compressed past half throttle, it should run with lower to no ether in the fuel. If you did try low to no ether maybe using the glow plug to get it warm for start ups and then it might run with out the plug being heated.
Anyone tried that?