Quote Originally Posted by rspears View Post
Thanks for posting the details, Pete. Makes perfect sense, and drilling out the jets (using a hand pin vise, I assume) seems like the only way to go unless one had access to a full range of "loaner" jets to play with. The vacuum gauge comment is a very good tip for the power valve, too. I like the clarification that the power valve is like the "squirters", but for the primary/secondary transition. Great video, too.
Hey Roger!! Yes drilling using a hand pin vise-they are very small bits-would break easily. I use my 18 volt dewalt to hold the bit then turn the jet around the bit a thousandth at a time(takes a while to do 4 but its free) I was lucky to find 2 mechanics and drag racers who love carbs and explained them to me,told me the steps and it worked out,I hope I explained it well enough so a hobbyist like myself can tune a carb. Thanks Pete