Thought I would post this in the REV section since it applies to 440's and to sleds that didn't get the DPM. The Holtzman Atacc system is similar to DPM in that it leans out the carbs for higher altitudes and warmer temps than your current jetting is set at. It does not make the system richer, so start fatter on your jetting when installing the system.
The system can be mounted in your side panel airbox (if you have carbs vented there already). Even if you don't you can vent to the side panel airbox (04 and 05 440's).
Remove the side panel airbox and carefully pry it apart with a small flat screwdriver to undo the snaps that hold it together.
Follow the directions with your system, but here are some pics to help you out.
It is important to drill the holes close to where I have shown so that the door will close and the hoses won't get caught or melted on the motor.
The system can be mounted in your side panel airbox (if you have carbs vented there already). Even if you don't you can vent to the side panel airbox (04 and 05 440's).
Remove the side panel airbox and carefully pry it apart with a small flat screwdriver to undo the snaps that hold it together.
Follow the directions with your system, but here are some pics to help you out.
It is important to drill the holes close to where I have shown so that the door will close and the hoses won't get caught or melted on the motor.
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