| Author | Message | ||
     Ft_bstrd |
Well, I finally got it to ping today. I did 10+ miles of bumper to bumper because of a guy in a log truck. WOW WHAT A RACKET! If you have to ask if your bike is pinging or not, it ain't. You will definitely know if your bike is pinging!!!!!!! | ||
| Dentguy |
"You will definitely know if your bike is pinging!!!!!!!" +1. It is a terrible sound that you will never forget. If that is the first time you have had it ping, I'm so jealous! | ||
| Davo |
Dentguy, Take a ride down this way one day and we will put a stop to your pinging.My Uly is gone but I still got my tools and software. | ||
| Dentguy |
Davo, I have not forgot about you just haven't been that way yet. I did move it back 1mm last week and I didn't hear it ping but I didn't ride it far. Although it isn't usually that hard to duplicate. It did feel down on power. Moved it back and it pinged (70 degrees out). I went from center of the window to the right edge. Am going to try somewhere between. Thanks. | ||
| Davo |
Make sure you go on a AFV run after you make significant ignition changes. Did you notice a reduction in surging at 3K and better cranking while the timing was retarded? Try just past half way to the right side of the window. If you went to the edge you went about 6-7 degrees late (Message edited by davo on September 17, 2007) (Message edited by davo on September 17, 2007) | ||
| Dentguy |
Probably haven't ridden it enough yet. I'll put it back and ride it more. Last week was a little crazy just a couple short runs. Cranking seemed about the same, but I did tap the holes so adjustments are easy. I'll see how it goes. Sorry Ft_bstrd wasn't trying to take over. | ||
| Davo |
His post was helpful for those people that think they might be pinging. Pinging is like seed ticks. When one person finds just one then everyone feels them all over. Of course it is important to correct pinging if you are experiencing it. Pinging is the sound of your engine trying to turn itself inside out. | ||
| Dentguy |
Davo, thanks for adding in the edge of the window is about 7 degrees. My original intent was for about 3 degrees(1mm). I probably went a little far. Didn't put a light on it. I'll go for halfway to the right and put some miles on it. | ||
| Davo |
If you have a variable light set at zero advance get the engine to at least 320F and at idle the TDC mark will be hiding just past the LEFT side of the window if you are static adjusted to factory specs. Yes, I said Left side of the window even when VDSTS indicates no/zero advance. | ||
| Ft_bstrd |
No this is fine. I was just caught off guard in that I have never heard it before. I had heard light ticking that went away when you cracked the throttle open. This was quiet UNTIL you cracked the throttle open. I was going a short distance to dinner, and so I didn't have my ear plugs in. DAYUM! I eased off the throttle and, because traffic was moving, it only took a mile or so for the noise to stop. I KNOW mine doesn't ping regularly now. Everything else I hear is normal engine noise. | ||
| Mike_dinger |
Oh Ft_B, I feel for you brother. I am new to the ping as well. It is embarrassing! I feel like I'm driving a Ford Pinto when it happens. It's like losing an erection as far as power and machismo go. I had to baby the damn bike home, afraid to get on it too hard.  | ||
| Jlnance |
Fatty - My first time was after idling around in St Louis traffic (in July) for 30 minutes. As soon as I got on an open road I opened up the throttle and it sounded like a jack hammer. I rode easy for a mile to cool the engine back down and all was good. | ||
| Scooter808484 |
Mine has been a limited pinger pretty much from the beginning. 4th or 5th gear, ~25% throttle at about 3000 rpm, she'll ping just about every time if it's warm enough for the fan to run. Except... I bought a tank of Arco premium (92 octane) with 10% ethanol, and it quit. I've tried to get it to ping, and can't. I mostly used Shell before. I had shied away from ethanol before, for probably no good reason, but I'm working through a second tank and still no ping. Anybody got any good explanations?? | ||
| Cccpull |
What octane fuel are these bikes running? | ||
| Thespive |
Higher octane is used because it burns slower and will slow down the flame front and prevent premature detonation, also known as pinging. Your Arco fuel had a boost in octane from the Ethenol, hence the elimination of your detonation issue. Other ways to address the issue is to adjust timing, which could lead to less power. You want to use the lowest octane-rated fuel your vehicle was designed for - that it doesn't ping on. So if your car (or bike) was designed for 87 and it doesn't ping on 87, use 87. Upping to a "Premium" fuel will not make your vehicle more powerful or run better unless it has a knock sensor and was designed for a higher octane. Lastly, high mileage vehicles designed for lower octane fuel might benefit from higher octane as it ages because the carbon deposits in the engine can actually change the compression ratio and the carbon will soak up some of the fuel, causing, you guessed it pinging. Hope any of this helps and/or makes sense. --Sean | ||
| Bearly |
It's all about the log trucks, you guys aren't getting it. BAN LOG TRUCKS! :-) 93 or higher octane will of course help. It has a higher flash point (than 87) and will take longer for the mixture to be ignited by bits of carbon that are glowing here and there in the cylinder instead of the spark plug. Pinging once in while when behind a log truck in TN just happens. Log Trucks Cause Carbon Deposits!  | ||
| Mike_dinger |
I use the California special 91, cuz that's all we get, thanks Hippies! I like the idea of octane booster, but i recall someone here saying it was bad for valves or something. I have an appt to bring mine in for guess what? Saturday morning Ping. Already been in once, where they reset the TPS, and performed other various whatevers. Seems to me like they just bumped up the idle a bit, but that's just me. So, let's see what "they" will do this time around as I forfeit my Uly for a week. Are we really supposed to just cut back our riding behavior because the engine gets hot? I bought this bike to kick ass, not to pansy up when it gets tired. I'm having a hard time keeping up with the kid on the Razor. Sorry for the rant, guys. | ||
| Dentguy |
"What octane fuel are these bikes running?" 93 octane since new (2 years). | ||
| Jmhinkle |
At my altitude, 5300 ft, we only get 90 or 91 on the pump. It never pings here due to the lack of cylinder pressure. When I was at sea level running 93 from Shell and BP and 94 octane from Sunoco, it would ping any chance it got. | ||
| Chadhargis |
Fatty...I had the same thing happen. My bike has only pinged when I have sat idling in traffic, then get on the gas hard. After a mile or two, it stops, and all is right with the world again. | ||
| Unibear12r |
My bike decided on it's own to quit pinging. Then I realized that it quit when I had done the foil trick to divert the hot air from the fan down to the rear hugger. Heat doesn't always just kill electronics but often slows it down or change it's functioning. Could the ECM be overheating? | ||
| Panhead_dan |
The ECM is the culprit, I think. I don't know if it's heat related but I sure would suspect it. I'm still looking for a solution that doesn't involve lower compression or timing retardation. | ||
| Natexlh1000 |
How about a little computer fan under the seat for the ECU? I think that would be an interesting experiment. | ||
| Mike_dinger |
Intel inside?  | ||
| Natexlh1000 |
Seriously! Just put a little 12v fan under there with duct tape and see if it changes anything. I always wondered about the ECUs. They handle a fair amount of current and yet they have no heat sinks on the cases. | ||
| Unibear12r |
If it's still hot where you are at just try the foil trick off the Heat Management threads for a while and see if there is any difference. If not then toss the foil and you are out very little. The intent of using the foil was to stop the hot engine air from hitting the riders legs but it would also keep it away from the ECM. | ||
| Jim_sb |
What foil trick? Bike heat doesn't concern me - but should I shield the ECM with foil? Or just my head? I hate the ping! Oops - sorry - the "injector noise" I am getting. Regards, Jim in Santa Barbara | ||
| Growl |
I read with interest every post about pinging since my Uly did ping. So I drilled out the rivets on the timing cover and lo and behold, not only does the timing plate have index marks - it even has an arrow showing which direction advances the timing. I retarded it by 1 single index mark and all pinging is gone! Maybe when next summer's heat comes again it may ping - we'll see - but so far not once. It was sooooo easy. | ||
| Davo |
Growl, You might have gone a little too far. Each mark is ten degrees. You only need to go about 2/3 that far. You will know if you are down on power. If you scribe the inner cone and the plate then you can use the 1mm equals 3 degrees system A .040 spark plug gap measurer is 1mm. 10 degrees retarded timing puts your timing at hot (320F) idle (1050) about 3 degrees ATDC (after top dead center). 7.5 degrees worked for my Uly. My hot idle timing was right at TDC. | ||
| Unibear12r |
Hi Jim! Lots of interesting stuff comes up when you search under Heat Management. But, my bad, the foil trick that I was talking about is in the "XB12X Air Flow Deflector Kit" thread archived to July,26,2007. It's a quick and cheep way to experiment with the heat issues. While I've been running the foil for over a year now, I think most who do something like this permanent use a modified heat blanket from Odie. | ||
| Growl |
Davo: Thanks for the heads up! Yes power is a wee bit down... I will try readjusting to 2/3 of a mark off from original right away (I marked the stock position with a sharpie). Sure do appreciate the feedback! |
