Keep er' Between the Ditches
DTT BOTM WINNER
Nice job on the carb! I really enjoy looking at the inner workings of those little tillotson carbs. Made right here in Ohio, Toledo if i remember correctly.
If the cylinder hasn't already been bored, I'm sure you plan to take it over to Chris at MototechUSA. He did your 378 barrels I believe? I will likely soon have a dr650 cylinder to take to him as well.
Not sure how expensive pistons are or how hard they are to come by, but if you can get away with just one overbore instead of that .070" over, i would do so, and just stick that one on your shelf. Who knows you may wear out a piston and need to go one bigger someday. 2 stroke engines eat themselves by design and I would always go up overbores at the minimum increments. Seems a waste to machine clear past so many sizes, especially if .070" takes it out close to the end of its usable life. Of course if you want to bring the cylinder over, I would be happy to put the bore gauges on it and see. And thats all just my 2 cents. That and 57 cents more will get you a senior coffee at the golden arches