Topic: 1978 Cb750k Strait pipes?

[754]

TT I am not a monitor. but I can read..

 The point I was making is not all 3/32 drill bits are the same diameter, because they are drills.. and drills are not produced to tight tolerances.

 I am not sure about your experience with drills, tolerances and charpening them, but I have drilled a lot of holes and sharpend a few drill bits..

But hey, what would I know...


Perhaps TT can help us out here and tell us what you should do to an off the shelf jobber drill bit before drilling brass..

[Sam Green Racing]

All this talk about accurate drilling reminds me of an episode many years back in a engineering journal.
At the time, not sure if it is any different today but, the smallest unit of measurement was in angstroms.
An American precision engineering company claimed it could make a 1" bolt threaded the full length complete with nuts and washers the thickness of a human hair.
Rolls Royce challenged them to prove it.
The American company complied with the request and sent the finished bolt to Rolls Royce.
Rolls Royce sent them the bolt back. It had been tapped and had another bolt screwed through it.
UK 1   USA 0 

Sam.

[754]

aH you sure that happened, or is it an urban myth..

[zeus87]

well, its running really good...but still a little lean (pipes could be darker, and cylinder #3 is blueing the pipe) anyway, where can i get jets?  i want to order them but i hear they need to be very specific...well im looking for 120's does anyone know if i can get them from say dennis kirk?  Thanks!

[Sam Green Racing]

aH you sure that happened, or is it an urban myth..

Well do you believe it Frank

Sam.

[eldar]

Zeus, #3 IS probably right. With the lean nature of these years, pipes blued a bit more.