I've been working on gasoline engines for 52 years. I've taught classes and did seminars on small engines. Diesel engines are different than a gas engine.Dale, I have been working on engines for 45 years.. I recently retired as an assembler of 4400 hp. Diesel locomotive engines.. I am trying to help this poor guy get his engine running not confuse him even more..
There is more to setting a carb than high-low speed air-fuel settings and idle speed. You are trying to over engineer what an engine needs to run.Hey dale, how do you adjust a hole?...LOL
Need some humor,,Mark Twain (really) "He who pitheth up a wall will end up with stinking feet" and "tis a foolish sailor who would spit into the wind"...He didn't own a cub but he understood male ego...PLEASE STOP THE PISSING CONTEST. YOU FOLKS ARE LOWERING MY OPINION OF THIS GROUP
I just did mine on my 1650 last summer. It will go much easier with the engine out and you can inspect all potential worn areas such as the cradle mounting bolts in the oil pan. What I found with mine was the oil pan's mounting bolt holes for the cradle were galled out. Apparently the previous owner had run the machine for many seasons with shot rubber isolators and the bolts worked loose as well. The aluminum pan was toast, no meat for oversize or thread inserts. I was able to find a cast iron pan that I think is way better. I did not do the cradle mod. From many hours of research I believe the intent of the mod is to prevent the rails from rocking independently due to worn mounts and hardware and thus ruining oil pans as well. The "bridge" in the mod locks them into a single unit and thus they're stiffer as a system rather than separate. Time was getting short and I needed it running; that and it wasn't broke from the factory. I'll probably get some heat for not doing it but it is a good idea. These larger single cylinder engines have a lot of vibration. I'm working to keep things checked and tight more often so it doesn't go south again; just some added items plus the oil checks/changes, tires, filters, etc.On the ISO mounts