I am thinking about backing off the advance in the 750rpm/20kpa cell to reduce kickback during startup. The bike is a 13 limited and I'm using the pro super tuner. I don't see any other place in the tuner to adjust the timing for just start up. Any suggestions or advice?

 

750 @ 100kpa is the area you want to look at for start up

 

Are you sure the kickback you are trying to address is due to timing?

That could be from anything from bad grounds, weak battery, starter problems, worn compensator, etc.
Although that is the area he should be looking at vs. the 20 kPa the OP mentions, I think that is rather limiting.

The way I understand it:

At sea level, say 59 degrees Fahrenheit, you go to start the bike and the ECM would be looking at that area (750 rpm, 100 kPa) of the spark table.

But what if, at the same temp., the bike is at say 500 feet above sea level?
(which is close to the altitude the OP is at)
Now the ECM would be looking at the 95 kPa area.

Not to mention the fact that once the motor starts drawing air into the intake while cranking the kPa is going to go down even further.

So, for spark and starting, I look at the area of 750-1000 rpm in the 70-100 kPa areas.

To the OP: You can play with the spark in those areas, but don’t rule out other causes.
Also you might want to include complete specs of the bike and the spark that is currently set in those areas and maybe one of the pros here might have some suggestions.
.

 

I meant area rather than a single cell. The table should be smooth.

First question I suppose would be what is it just now, and as you say kickback could be something else entirely

 

I'm about to do the same thing. My Low Rider S has the 110 motor and I have been fighting starting issues since day 1. I did this on an old tune, but recently put a FuelMoto pipe and new tune on, and forgot to retard the starting cells. I've been having hard starts again, and it just dawned on me that I need to adjust the new map.

 

BTW, forgot to mention something.
As I don’t know specifics of the build or tuning, you should also consider this:

It is not uncommon when a dealer installs pipes, AC and such they suggest the bike be dyno-tuned.
A good idea, but it is also not uncommon that they forget to enable the ACRs when they are done.

Make sure the ACRs are enabled.
.

 

ACR is on, battery and connections are clean and tight. I never had a kickback problem till I installed the 110 tire shredder kit.

 

I ordered a PV and target tune today, I have faith they can fix all my tuning problems. Can't wait to delete the Super Tuner Pro. Thanks for the replies!

 

FYI - the HD map has a cranking timing table that lowers the timing significantly when cranking. You might try backing off the cranking fuel. I have lowered that on numerous builds where kickback was an issue - especially when hot. You could try starting with the .3ms and click it 4-5 times.
Just a thought.

 

The ST is a great tool. When people or tuners don't understand it, it gets a bad rap.