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Discussion Starter #1
so my 2013 Brutale is back at the dealer to fix the poor running issues they are waiting for a rapid bike isolation plug, this so they can test the rest of the bike.
this is essentailly a new motorcycle that the PO has installed a rapid bike ECU and Arrow exhaust system on.

SS I may be heading to MA to see Robs Dyno if this attempt fails
The dealer said they have gotten the bike to run at 80 percent of perfect and that the first 15 percent of throttle travel is where the bike is having issues.
This is exactly where i need the bike to run perfectly
Does anyone have any suggestions on what possible sensors might be bad or failed
or how to proceed to get this machine running the way it should?
I asked about doing a flash program to the original ECU and the dealer said they can not perform that operation only update the factory ECU update.
I really dont want to waste my cash chasing a demn
Otherwise the bike runs great when its past the 15% of throttle under that it stalls and stumbles when at cruising speed say about 70 MPH
 

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If the TPS is set correctly then it is probably just the Rapid Bike ECU. Take it off and put the original ECU back on. The only probable sensor that would cause your running condition would be the TPS.

Scrap the Rapid Bike and go see Chuck's dyno man.
 

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@mrmerlin: The first bit of the ECU map is not accessible by any piggy-back tuner. This wa explained in the tuning thread. You need a dedicated tuner to access the ECU mapping and tune the Magneti Marelli 5SM ECU/

You are wasting time money and energy for something that cannot be done as you are proceeding.

This is not a "common sensor" issue. It is the design of the ECU.

Piggy-back tuners also do not adjust the timing tables and that is where a lot of the issue lies. I don't know how many times I can say the same thing. Take the advice of those who have gone before you, or you can waste your time and money.
 

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Discussion Starter #6
Hi Chuck i am still learning I talked to Rob yesterday so that gonna be the next stop,
he said he will make the bike run great,.
Thanks for your patience
 

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@mrmerlin: I will say that my 1090RR is very well sorted by Rob.
 

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Discussion Starter #8
Well a follow up of sorts, i took the bike to my friends garage for new tires with 2500 miles on the bike,
I fitted the Conti Road attack tires, so far they feel good and handle well.

Anyhow we also removed the rapid bike unit.

Now the bike runs good, low speed engine response is good but not great.

I cant tell if the bike is any slower or not it seems the same to me.

The engine speed issue is still present where turning the throttle from idle to increase results in a jump from 1100 to 2200 RPM it is not incremental like all the other bikes i have.

I also was chasing a no starting issue so i replaced the 3 thick starter wires with a kit from the vendor on here , its very well made and the starter now turns over fast cold or hot.

I also went and replaced the battery as it would allow the bike to be started by jumping the leads at the solenoid but would only result in a click when pushing the starter switch.

even though the original battery was showing 12.4 volts it was not enough to start the bike,
A new battery she starts in a second.

So I am still thinking about taking the bike to Rob over the winter so he can tune the computer,
otherwise I love the bike
 
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