Exhaust re-engineering

[Mercaholic]

I've located a decent set of a factory exhaust system to replace the Yosh setup I have presently mounted on my '83 GS1100ES.

With the Yosh pipe, I upgraded the main jet sizes from 107.5 to 130 so my questions are as follows:

1. If I convert back, should I install something larger than 107.5 as the bikes came into Canada factory lean. If so, any suggestions with sizes to consider past 107.5?

2. What difference would it make in jetting size if I removed the air box and installed pods, with the factory pipes back on it. For example with the 107.5 factory jets, would it run too lean?

Looking for anyone that's reversed their exhaust systems.

Oh ya, the reason to convert, I'm getting older and the Yosh is just too loud for the new noise by-laws coming into these parts.

 

[FreshStart]

Point 2 if the 107.5 is lean from the factory the pods will make it way to lean. Id keep the big jets if you plan to add pods

 

[posplayr]

first thing to decide is if you are going to run pods, then try and jet it.