2012 R3R-Engine Knocking/Ping around 2000 RPM

[Dr.D]

Just try the next grade higher octane to see if it makes a difference.

 

[TURBO200R4]

I am thinking that to check the throttle balance with tuneecu and if it is way off then you may have a a cracked vacuum hose causing lean condition
a lean condition will cause a hesitation when giving throttle

 

[Van_R3Rider]

I am thinking that to check the throttle balance with tuneecu and if it is way off then you may have a a cracked vacuum hose causing lean condition
a lean condition will cause a hesitation when giving throttle

I did check the throttle balancing on tune ecu. One of them is 20 less than the other two. I guess not way off. What should be the hpa value for throttle bodies at Idle. Please pardon me if I am asking a silly question

 

[TURBO200R4]

guessing
600 to680 mine are 640 maybe 10 off
can not see 20 off being a big problem

 

[Kevin frazier]

I can check for exhaust leaks. Interestingly,Penner’s tune didn’t work well for me. After 12 minute tune, bike’s idle rpm dropped and I had hard time accelerating bike from get go. Felt bogged down or needing more air. Every time I twisted the throttle while riding, it would hesitate to accelerate. So, I flashed the other tune that I mentioned and it is better.

Gotta check tps and idle stepper as well after loading tune, several things could be going on

 

[Journeyman]

The TPS is always a suspect. You might want to read this post I made years ago concerning my '11 Roadster.
Spoiler alert- cracked vacuum caps- a cracked hose if you have the original air system would do the same.....

Knock, knock!

UPDATE - With the octane boost the thumping is now gone! It was raining on the way to work, so unless it's humidity related I'd say that the higher octane has temporarily solved the problem. I added about 1/3 bottle of and brought the tank up to about 1/3 full to keep it concentrated. So, is...

www.r3owners.net

 

[Van_R3Rider]

I checked the vacuum hoses and caps. In excellent condition. Checked all hoses for loose connections.Balanced the throttle bodies. I have reloaded the stock tune again. I will try higher-grade fuel to see how it goes. Is there any way to test the TPS to rule out any issues?

 

[BCRedHaze]

I think the 20355 TORS tune is a better tune for a stock roadster. It made a difference in mine before I put the TORS on.