#16
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First find that exhaust leak or whatever it is. Perhaps a gasket (as I hate to say seal) is causing too much air intake.
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April 13, 2016 -- The day Richard was speechless. May your hands always be busy, May your feet always be swift. May you have a strong foundation When the winds of changes shift. May your heart always be joyful, and may your song always be sung, May you stay forever young! --Bob Dylan |
#17
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Quote:
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Cameron. Brought to you today by the letter D, the letter C, and by the number 43. |
#18
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Cam Thanks for that! Heat Demons are on my list!
The install video shows that it's pretty simple and since I'll be swapping bars, they'll be in there. Now, if i could find a cruise that was that easy
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I'm not saying it was your fault. I said I'm blaming you. Ricky it's only metal, we can out think it..... Simplicate, never Complify http://www.FraZzledEgGs.com Rhetorical Questions.... Who Needs 'em? ... Famous Tripod
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#19
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Good to hear that Franken Bagger is getting some attention. Heated grips are among my favorites on the 'Mule also, and something to be addressed on the Dogfish...
Watch out that Modding pool has a sharp drop off right around ankle deep.... Dirk |
#20
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Quote:
this my bet is on sucking air in. If I don't use high temp RTV at joints in the pipe that are just clamped and between pipes and slipons I get decel pop. Not as loud as yours was when I was riding behind you (bout crapped my pants the first time it happened ), but that's still where I'd look first.
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<a href="http://www.mytriplogs.com" target="_blank"> <img src="http://www.mytriplogs.com/sigs/mtl_create_us_states_map.php?rz=75&vu=vuuvuuuu uuuuuvvvvvvuvuuuvvuuuuvvuvuvvuvuvuvvuuvuvuu" border="0"></img> <br>Free, personalized travel maps at mytriplogs.com</a> <br> </center> |
#21
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Startlin', ain't it?
:roflmao: That is on the top of the list to fix. It's driving me nuts for sure. I finally got my computer to talk to the tuner last night and downloaded some history. Unfortunately, it doesn't have a "Fix Decel Pop" button.... So I'll have to figure out the fix. I'll be checking for air leaks as well. There is only a single slip connection on the LSR pipe; it was installed with Ultra Black as directed by RBR. It may just need a fresh application.
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I'm not saying it was your fault. I said I'm blaming you. Ricky it's only metal, we can out think it..... Simplicate, never Complify http://www.FraZzledEgGs.com Rhetorical Questions.... Who Needs 'em? ... Famous Tripod
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#22
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This is from Mikuni's carb site but may still provide some insight:
"Note: It is normal for many high performance exhaust systems to moderately backfire or pop when the throttle is closed from mid-to-high rpm. In fact, one should expect a well-tuned high performance engine to "pop" and "crackle" when the throttle is closed at high rpm. The popping is a result of the air/fuel mixture becoming very lean when the throttle is closed and the engine is rotating well above idle speed. It is also necessary that the exhaust system have rather open mufflers. Why This (normally) Happens: 1) When the throttle valve is in the idle position, fuel does not flow out of the main system (needle, needle jet, main jet). Fuel is only delivered to the engine by the pilot (idle) system. 2) The combined effect of the closed throttle and elevated engine rpm is to create a fairly strong vacuum in the intake manifold. This vacuum, in turn, causes a high air flow rate through the small gap formed by the throttle valve and carburetor throat. 3) Under these conditions the pilot (idle) system cannot deliver enough fuel to create a normal, combustible air/fuel ratio. The mixture becomes too lean to burn reliably in the combustion chamber. It gets sent into the exhaust system unburned and collects there. 4) When the odd firing of the lean mixture does occur, it is sent, still burning, into the exhaust system where it sometimes ignites the raw mixture that has collected ---- the exhaust then pops or backfires. 5) Completely stock Harleys do not do this until open-end mufflers, such as the popular Screamin' Eagle slip-ons, are installed. The exhaust must be both free-flowing and have an open exit for the popping to occur. Other possible causes: Air Leaks: Any source of fresh air into the exhaust system can create or worsen the conditions that bring about exhaust backfiring. The most common entry point is the junction of the header pipes and mufflers. Even a small air leak can dramatically increase the intensity or likelihood of exhaust system backfiring. A high temperature silicone sealant, as can be found in many auto parts stores, may be used to seal the pipe/muffler junction. Lean Carburetion: While exhaust system popping may be considered normal, it is certainly made worse by an overly lean idle circuit. Be sure that your carburetor's pilot jet is the correct size and that the idle air mixture screw is correctly adjusted before looking for other causes of popping. The procedure for adjusting the pilot circuit is covered in the Tuning Manual. Ignition: If exhaust system popping is very loud, irregular and accompanied by loss of power, then you should suspect that the ignition system is not performing as it should. If, for some reason, the ignition sometimes fires at the wrong time, then exhaust popping can become very energetic (loud). Look for failing high tension leads (plug wires), failing ignition coil(s) and especially switches or connectors as possible causes. " |
#23
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If its poppity-popping, lean. If it's banging like a gunshot, rich.
Sent from my li'l ol' iPhone 4S augmented w/ a mophie juice pack plus® using Tapatalk
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Just another damn "Dave" Decidedly unpleasant, does not play well with others. Fluent in Pidgin Cigar Spanish. http://sherlynpopelka.net/ Revelation 19:11 And I saw heaven opened, and behold a white horse; and he that sat upon him was called Faithful and True, and in righteousness he doth judge and make war. *Usual manly disclaimer applies, if applicable.
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#24
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Oh, I'm thinkin' its got both goin at once.
Let's poll the witnesses...
__________________
I'm not saying it was your fault. I said I'm blaming you. Ricky it's only metal, we can out think it..... Simplicate, never Complify http://www.FraZzledEgGs.com Rhetorical Questions.... Who Needs 'em? ... Famous Tripod
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#25
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More like a gun shot. If it is a lean pop you can verify by giving it throttle just off closed. If it goes away lean pop. That is what mine does just like the Mikuni site says since it is running a Mikuni. Yours goes bang not popity pop. I say rich.
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#26
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I picked up a used Heritage handlebar; after looking it over I don't think I'm liking the grip angle. After researching some and talking with Wild1, I have decided to get the 515 bar which is the 10" ape. Now I just have to troll the web for a while to find myself a 'deal'.
__________________
I'm not saying it was your fault. I said I'm blaming you. Ricky it's only metal, we can out think it..... Simplicate, never Complify http://www.FraZzledEgGs.com Rhetorical Questions.... Who Needs 'em? ... Famous Tripod
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#27
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Ebay.
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Cameron. Brought to you today by the letter D, the letter C, and by the number 43. |
#28
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^^^^
this I've got a bid on the heat demons as well as the bars. Now I just need patience. Have any of you installed the Heat Demons on a Wild1 chubby bar? I'm certain I'm missing something here. They sell both 1" and 1-1/4" versions. I expect that the difference would be the radius inside the clamp, but on closer examination, it appears that the clamp is on the stepped (1") portion even on the Chubby anyway. Guess I'll have to give 'em a call.
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I'm not saying it was your fault. I said I'm blaming you. Ricky it's only metal, we can out think it..... Simplicate, never Complify http://www.FraZzledEgGs.com Rhetorical Questions.... Who Needs 'em? ... Famous Tripod
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#29
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Dennis Kirk was cheaper this time; a pair of 150/16 880s for 331 is a darn good price. They beat out MCSuperstore this time by about 25 bux.
__________________
I'm not saying it was your fault. I said I'm blaming you. Ricky it's only metal, we can out think it..... Simplicate, never Complify http://www.FraZzledEgGs.com Rhetorical Questions.... Who Needs 'em? ... Famous Tripod
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#30
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Was it too late when you found this out?
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