|
I use a numbered and lettered drill bit index, which is easily found at Harbor Freight. Just let Google do the math for you.
For example, a 30mm Mikuni comes with a 100 main jet, which means 1.00mm. 1.00mm is really close to 0.040", which translates to a #60 drill bit.
To drill out a main jet to something near 110 (or 1.10mm), select the #57 drill bit, which is 0.043", or 1.092mm.
It's much faster than buying new jets, every time you wish to experiment. BTW, I already had a numbered and lettered drill index, for use with drilling holes properly for tapping. The carb jet use is just a bonus.
__________________
Weldangrind
"I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
|