I know I ask this question before, but dumb me lost track of where I posted it (I did ck the search with no luck).
What cylinder is number 1 ?? The front or rear? at one time I was getting mixed answers from people I asked.
I would like to try to adjust the "trim" on the PCIII but it lists cyl. 1 or 2.
The shop manual did not seem to help either (just ft. and rr. listed)

 

The Front cylinder is number 1

 

Regarding the PCIII - And most other tuners I think. The rear cylinder is Number 1 except for Touring 2008 bikes see post :https://www.hdforums.com/forum/ignition-tuner-ecm-fuel-injection/234190-pciii-cylinder-1-and-cylinder-2-a.html

 

There ya go, some good answers. Call a H-D for a real answer.

 

double click, sorry.

 

You can test this your self and I have BTW. You can richen the trim value for Cylinder 1 and then ride around for a while and then check your plugs. Cylinder 1 will show rich.

As for asking HD, They do not really know either. Their design docs all refer to the lead cylinder (front) as cylinder 1 but their efi refers to the rear as cylinder 1.

I contacted power commander to verify the info. Then I figured out the trim value method.