Yamaha Jetting Terminology

peterk

New member
Joined
Mar 12, 2006
Messages
2
Age
55
Location
SE Michigan
I am rebuilding carbs on a 2001 Phazer. Jets are called out as 143.8 for Cyl#1 and 142.5 for Cyl#2.

Which side is cyl #1 and which is cyl #2?

Thanks!
 

What is meant by "dropping one jet size" does that mean from 142,5 to 141,3?
 


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