DLTX-53 Idle passage sizes

I just wanted to confirm that #40 and #53 are appropriate for the DLTX-53 before I drill the passages bigger.

Thanks,
Mike

You were right, a 3/32" bit fits right into the larger 2 of the 3 passages. Do you know off-hand what the closest fractional size would be to bit #53 ?

Thanks again,
Mike

Looking in my handy-dandy Pocket Reference from Thomas Glover, the decimal equivilent of a #53 drill is .0595 inches. This is smaller than a 1/16 inch drill, which is .0625 inches. A 7/128 inch size is .0547 inches. I was able to use a standard length #53 and a pliers to clean out the secret passage. I got that bit at the local True Value Hardware. Luckily it was just a bit clogged. I would not use larger sizes for the secret passage. Size on that one may be critical.

Cam

Thanks for the replies.

I bought both a #40 and #53(Standard length) at my local ACE Hardware with the intention of using them only as guides to let me know if the passages needed to be drilled out. When I attempted this and saw that the passages were "sparking clean" but the wrong size, I became puzzled and wondered if the sizes were different among different DLTX carbs. But, I think I have concluded that whoever overhauled this carb before probably just used "fractional" drill bits. Fortunately there "err'd" on the small side and the holes are smaller than they should be.

Mike