Haynes manual ERROR?

[SonyUser]

Ok first of all, it appears the diagram in the Haynes manual has a typo.

what is labeled the "main jet" which goes into the very top of the carb at the opening of the primary venturi is actuall the Pilot air jet, correct?

Here's a question

Are jet # sizes the same as a drill bit of the same # size?

Not that I'm going to clean them with a drill bit, I know better.
but say the economy crumbled and I needed to make a jet for my bike.. I could get a 130 drill bit and make a 130 jet?

-Chris

[SonyUser]

Ok, after looking at the Yamaha schematic.. I guess Yamaha calls it a main jet.. pffttt...

btw.. what's really helpful is the yamaha online parts catalog!
http://www.yamaha-motor.com/yds/partscatalog/consumer.asp

Add it to the links page! (if it's not already there)
I love Yamaha for putting it up.
power to the (little) people!

[nvdranger]

another great catalog is www.powersportspro.com  There store is here in my hometown and have good customer service.  i was confused (not very hard when you never torn a carb apart) reading that same section and just believed what it said.

Ken

[Humber]

If I understand it correctly there is no bug in haynes manual, main air jet is at the top of the carb and main jet is below - those one ones for fuel.

Now, Pilot air jet is that not interchangable one just beside main air jet, and pilot jets are at the bottom, these are idle srews.

[Jon]

Wire gauge drill bits and jet sizes have nothing to do with one another.  At my hardware store we have down to #80 wire gauge, and that is already way smaller than any jet passage.

[h2olawyer]

Hi SonyUser!

Before the apocalypse, just go get yourself a few extra jets.  I picked up some for altitude testing and they were under $3 each from my Yamaha dealer!  I've now got a range of jets from 120 to 127.5, 2 130's & 2 135's.  You can get them in either brass or some kind of plastic.  I got the brass ones.

H2o