High Altitude GPZ

[John Soliday]

Has anyone changed the jetting on the GPZ for the US High Altitude spec?

 

Main Jet:  110 > 108

Pilot Jet:  35>32

 

Seems like a pretty mild leaning of the carbs and my bike always smells and
“runs” rich up here at ~ 5K and higher.

 

Also I’m running a Muzzy adjustable advance and have it at full advance with
no pinging on regular octane fuel so I think there is some performance and
MPG to be gained by leaning my bike at least up here.

 

John