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What jetting to run in a ktm 85 sx with power pipe exhaust?

The jetting for a KTM 85 SX with a power pipe exhaust will depend on the specific bike and conditions in which it's being ridden. Here is a general starting point for jetting:

Main jet: 170-175

Pilot jet: 35-38

Needle position: 2nd clip from the top

Air screw: 1.25-1.5 turns out

For the best results, it's best to read your spark plug after a few rides to see if the bike is running rich or lean. A white spark plug indicates a lean condition, while a black spark plug indicates a rich condition.