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Author Topic: Consistent ping  (Read 7054 times)

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rayson56

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Consistent ping
« on: October 02, 2020, 12:22:43 PM »

Looking for insight from people in the know here please. My bike is a 2018 CVO RG 117 and has had a pretty consistent and bothersome ping at 2900 rpm which is not noticeable when cold and much more apparent as the engine gets warmer, and terrible when hot. Does not appear to be fuel sensitive as I only run 91,92 octane and have even tried non ethanol when it's available. I have had my bike dyno tuned after adding the Fullsac header and 2"cores with TTS, then on a local dyno after adding a cam chest upgrade which included a RS 468 cam. Then by another tech on a 3rd Dynojet, and while the bike runs pretty good (it's possible they each needed to remove some timing to ease the pinging) the pinging at that RPM is still consistent at temp. I also have added the oil cooler fan.
I'm wondering since 3 tuners have failed to fix this problem if there is something physically wrong inside the engine? Some sort of carbon build up, bad valve seat, cracked intake?  :nixweiss:

Any insight, especially by you builders would be greatly appreciated.
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Unbalanced

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Re: Consistent ping
« Reply #1 on: October 02, 2020, 01:49:53 PM »

What tuner are you using?   Is the knock sensor turned on?   If it is, what is max degree of retard?

Can you data log the ping so you can address specifically where it is happening?

You hear the ping?   Or something (logging) is telling you it’s pinging?

If your using the Power vision and have the unit - you could do a few trials on the road using the quick tune as well as the log capture.   In the quick tune you could remove timing in the mid range in steps to see if you can get it to disappear And / or capture the data to remove timing specifically where it occurs you can also do this with TTS as well.

 
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rayson56

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Re: Consistent ping
« Reply #2 on: October 02, 2020, 02:03:20 PM »

As mentioned above TTS Mastertune is and has been the tuner. And yes the ping is audible. Tuned by 3 different tech's, one of which was Steve from Fullsac. But thanks for your input.
« Last Edit: October 02, 2020, 03:32:37 PM by rayson56 »
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HOGMIKE

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Re: Consistent ping
« Reply #3 on: October 02, 2020, 02:31:17 PM »

You might want to check the TTS website and maybe try one of the tuning files that matches your build and see how your bike reacts. There may be a mechanical problem if all 3 tunes didn’t solve the issue.
Nothing to lose and easy to check.

Just a thought.
 :nixweiss:
« Last Edit: October 02, 2020, 02:36:58 PM by HOGMIKE »
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HOGMIKE

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Re: Consistent ping
« Reply #4 on: October 02, 2020, 03:27:21 PM »

Perform a compression test with the throttle open and disconnect the ACRs. I agree with the plan to data log for timing events. The m8 has knock sensors,  it is possible one or both can be bad.
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rayson56

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Re: Consistent ping
« Reply #5 on: October 02, 2020, 03:28:10 PM »

After I installed the new cam last winter, Steve Cole from TTS sent me a tune personally as a Christmas gift, until I could get my bike in the Dyno, as around here most of the techs are on hiatus for a couple of months during the winter. Yes it pinged with that tune also, just not as much with the cool temp's. here in Washington.
So I'm thinking mechanical as well but not sure where to go from here.
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rayson56

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Re: Consistent ping
« Reply #6 on: October 02, 2020, 03:31:50 PM »

Perform a compression test with the throttle open and disconnect the ACRs. I agree with the plan to data log for timing events. The m8 has knock sensors,  it is possible one or both can be bad.

Thank you, I'm going to schedule it in to the shop in the next few weeks so that sounds like some very good information to pass along.

Please keep any ideas coming.

TIA
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HD Street Performance

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Re: Consistent ping
« Reply #7 on: October 02, 2020, 04:00:34 PM »

The tts shops around here i recommend. 
Huff, Easy Street Custom Cycles, Lonewolf (Nanaimo)
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rayson56

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Re: Consistent ping
« Reply #8 on: October 02, 2020, 04:43:06 PM »

The tts shops around here i recommend. 
Huff, Easy Street Custom Cycles, Lonewolf (Nanaimo)

I'm clear up in Marysville so between Huff and Easy Street, (Canada is a no fly zone for me) which do you recommend, especially if there is a mechanical issue and tearing into it is necessary?
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Re: Consistent ping
« Reply #9 on: October 02, 2020, 05:21:07 PM »

Hook up your TTS go for a ride and data log, post the data and current tune after review.


Have you gathered data before?

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fastfreddy

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Re: Consistent ping
« Reply #10 on: October 02, 2020, 05:28:09 PM »

just wondering what pipe, MX ?  what baffle ?
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HD Street Performance

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Re: Consistent ping
« Reply #11 on: October 02, 2020, 08:35:54 PM »

I'm clear up in Marysville so between Huff and Easy Street, (Canada is a no fly zone for me) which do you recommend, especially if there is a mechanical issue and tearing into it is necessary?
Take it to Huff in Des Moines. a little closer and he is a friend of Steve Cole, full shop not just tuning.
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rayson56

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Re: Consistent ping
« Reply #12 on: October 03, 2020, 11:39:17 AM »

Have you gathered data before?


I have not.
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rayson56

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Re: Consistent ping
« Reply #13 on: October 03, 2020, 11:41:41 AM »

just wondering what pipe, MX ?  what baffle ?

I have had my bike dyno tuned after adding the Fullsac header and 2"cores with TTS
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rayson56

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Re: Consistent ping
« Reply #14 on: October 03, 2020, 11:45:46 AM »

Take it to Huff in Des Moines. a little closer and he is a friend of Steve Cole, full shop not just tuning.

Thanks, I appreciate your input! When Steve George had it on his Dyno in Lk Havasu, he actually called Steve Cole for advice and he had no answer. Didn't appear to have anything to do with tuner or tune.
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