How do you calculate Keihin jet size? I want to drill my extra #210 Factory Pro jet to a #230 or #245.
I found this conversion, and wondered if somebody could verify it..Kiehn jets are represented in percentage of a MM. A low speed jet thats marked 42 would be 42% of 1 MM (.03937) or .0165.
That means (approx.):
#225 = .08858 which is a size #43 drill bit
#237 = .0933 which is a size #42 drill bit
#245 = .0964 which is a size #41 drill bit
Can anybody verify? Thanks!