ping, ping, ping...
#31
05-20-2012, 10:18 AM
Although it would be nice to see the actual timing, when trying to eliminate a ping it's not really necessary. What's the difference if it's 42 deg, 44 deg, 46 deg, etc.? Bottom line is you need to remove some until the ping subsides.
Just keep doing what you're doing. Pay attention to throttle position (estimated) and RPM and you should be able to eliminate the ping. That's exactly the process I used to eliminate my ping. Just for a reference, I've attached a copy of my PCV timing table. Not saying my table would work for you, but rather just to give you an idea of what I needed to do for my bike.
Just keep doing what you're doing. Pay attention to throttle position (estimated) and RPM and you should be able to eliminate the ping. That's exactly the process I used to eliminate my ping. Just for a reference, I've attached a copy of my PCV timing table. Not saying my table would work for you, but rather just to give you an idea of what I needed to do for my bike.
#32
05-22-2012, 08:32 PM
Well, I finally had a bit of time to work at the bike over the weekend. I've been pulling back the timing everywhere I hear a ping, and have pretty much gotten rid of it. I took it to work today and couldn't hear a ping at all, although I had no windshield on, so I couldn't hear much of anything. If nothing else, I'm on the verge of being ping free, and the bike is actually still running great. I was having trouble with getting a miss every time I tried to pull back timing, but with a bit of work on the whole timing curve, I've been having pretty good success. Thanks for all your help guys, I'll keep you posted.
#33
05-22-2012, 11:25 PM
Well, I finally had a bit of time to work at the bike over the weekend. I've been pulling back the timing everywhere I hear a ping, and have pretty much gotten rid of it. I took it to work today and couldn't hear a ping at all, although I had no windshield on, so I couldn't hear much of anything. If nothing else, I'm on the verge of being ping free, and the bike is actually still running great. I was having trouble with getting a miss every time I tried to pull back timing, but with a bit of work on the whole timing curve, I've been having pretty good success. Thanks for all your help guys, I'll keep you posted.
I actually took my bike for a 100 mile test run today. The temperature was around 90 deg today and this was my first chance to test it in fairly high temperatures. I heard a slight, occassional ping around 2750 to 3000 RPM cruising in 5th & 6th gear on uphill grades. I may take out one more degree at all throttle positions at 2750 and 3000 RPM. Then again, I may just leave it as is because it is really minor and only occurs on uphill grades. I can always work around those kind of conditions by slowing and downshifting when neccessary.
Last edited by 2black1s; 05-23-2012 at 08:21 AM.
#34
05-23-2012, 07:21 AM
#35
07-06-2012, 09:19 PM
Don't know if your still having any issues or not, but I was talking to a pretty good local Indy the other day, and he said he has had a lot of bikes come in with pinging problems lately. He said the common problem with the 96s and the 103s is carbon build up. He didn't know why, but he said it raises the Compression ratio and causes the pinging. I don't know if this helps you, and I hope it's not true (as mine is a 96er), but I thought I would throw it out there.
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