PDA

View Full Version : Yamaha carb jet sizes question



Rjrobin2002
08-24-2017, 06:36 AM
So I am fixing to have the head shaved on my 75hp yamaha 3 cyl 2 stroke.

I looked at stock main etting on boats.net.
C75hp jets #175
C85hp jets #165
C90hp jets #160

So why are the main jets numbers getting smaller and where would I go with a high compression hydrotech head?

sabine river killer
08-24-2017, 01:45 PM
Get in touch with Jason Johnson.