Popping On Deceleration Lean Or Rich Little 13

July 4, 2024, 6:58 pm

Here's the deal – popping on deceleration can occur from both lean and rich mixture. I dunno, just trying to generate ideas. A simpler solution is to fit a Power Commander for your bike which allows for remapping of the EFI. What are the symptoms of a rich fuel mixture? I haven't had a chance to try anything to fix this yet, but I was just thinking about the problem some more. Contact: If you are using differential Injector Slopes, lower the Low Slope to enrich the decel some. The only think that I know to try at this point is to increase the DFLOD. When disassembling carburetors, you will likely have to remove the float. Look for failing high tension leads (plug. This allows enough air through to burn all the fuel left in the intake, producing power in the cylinder rather than exploding in the exhaust. Popping on deceleration lean or rich snippets. Something low and good to hear. When you are at closed throttle and 4000rpm and decelerating, what has to be adjusted to change the mixture? Users browsing this forum: Bing [Bot] and 22 guests.

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If all the slides don't close evenly, some cylinders may get more fuel than others and pass that charge unburned into the exhaust. It is critical that you work on a very clean surface with clean tools. But the type you're explaining sounds clearly like exhaust poppage. I am going to try setting them all to 1 and see if it will stay at stoich during decel instead of 18:1. Exhaust popping, lean or rich. I like the noise - my wife doesn't - I think she feels like something is broken on the truck LOL. Poor throttle response. If the tip is white and burnt, your bike is most likely running too lean.

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The more I've learned about things auto mechanical. Well a few minutes later we were driving around and he was shifting gears then BAM. I haven't changed the idle speed but some posts suggests adjusting that might help; however, seems odd that would be it given i haven't messed with it in ages. Afterfire/ popping exhaust. Lean or rich condition. Note: It is normal for many high performance exhaust systems to moderately. We recently had this issue on an A9L car (89) GT.

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So, if the mixture is kept rich enough that the mixture fires even with no power being produced, no fuel collects and no popping occurs. A log would be very useful, like to see what the commanded AFR is at decel. 10-14-2016 10:56 PM. In fact, it's almost impossible to tell whether a motorcycle is popping and crackling due to a lean or a rich mixture. If the combustion in the exhaust header or pipes are severe, it could cause discoloration and damage to the exhaust or worse, the exhaust valves. If you have low slope set equal to high slope, then you'll want to add some to the Injector Offset curve. I do need to get rid of this problem because it will do a loud backfire when I let off at the end of the track. With that said, it's best to fix popping and crackling noises sooner rather than later, since they are easy to diagnose and can be harmful to your engine in the long run. You may need to go two sizes up for a performance pipe and free flowing air cleaner. Popping on deceleration lean or rich vegetables. However, if left untreated for a long time or if the lean condition gets really bad – your motorcycle's engine could face catastrophic failure. On bikes with EFI, the ECU shuts off fuel delivery immediately when you close the throttle so that no excess fuel can enter the combustion chamber. Some popping may always occur due to the temporary lean condition in a carb bike as the throttle is suddenly closed (or when you coast with the transmission in gear). Raw mixture that has collected ---- the exhaust then pops or.

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It did this once in a while with my chip and 30's, but I figure that I should be able to fix it with the Tweecer. Lastly, make sure that you use the right grade of fuel. What is your 'Lambda Reset Switch' (aka LAMSW) parameter set to? This causes friction to built up between the pistons and cylinder walls, leading to damage. What causes exhaust "popping" during deceleration. I was running a DR D pipe and had it on the bike for a while. If is it black and full of carbon, the mixture is too rich.

To assess the air-fuel mixture of through the main jet, you have to run the bike at (or near) wide open throttle for while and kill the ignition while pulling in the clutch. Popping on deceleration lean or rich hunting grounds. The throttle valve is in the idle position, fuel does not flow. You cannot determine AFR by simply removing the plug. Essentially, this smell comes from uncombusted fuel. I've cleaned my air filter about 3 times since buying the DR and don't recall smelling fuel before.