dont bash me to hard
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Tourer
Joined: Sep 2012
Posts: 262
Likes: 0
From: Sacramento
dont bash me to hard
so i installed my pc5 with my bassani still backfires just as bad with out it how do know its getting more fuel its throwen flames. hooked up to lap top downloaded map. opened map and hit send map thats the right way to do it right?
Last edited by USMCBattles; Mar 6, 2013 at 09:24 PM.
Road Warrior
Joined: Mar 2012
Posts: 1,514
Likes: 88
From: USA
yeah that's about right. I like to disconnect then reconnect it to make sure the map uploaded properly. What map did you use?
Also, did you check to make sure you don't have a loose clamp anywhere or that your exhaust flanges are properly tightened down?
Also, did you check to make sure you don't have a loose clamp anywhere or that your exhaust flanges are properly tightened down?
Road Captain
Joined: Mar 2012
Posts: 637
Likes: 3
From: Iowa
+1 on exhaust leak, check around where the muffler clamps on to the head pipe. I had mine clamped down properly and still had alittle leak so I put red high temp silicone on there and that solved the leak.
Road Warrior
Joined: Oct 2010
Posts: 1,524
Likes: 36
From: San Diego, CA
The forum had me convinced it was my gaskets, so much so I replaced them twice. Ended up being the map. The thunderheader map sent by Jamie gave me popping on decel. The D&D fatcat map solved it for me. Might be worth a try.
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Tourer
Joined: Sep 2012
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From: Sacramento
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Road Warrior
Joined: Nov 2010
Posts: 1,251
Likes: 30
From: Ashburn, VA
Can you manually adjust your maps like a Power Vision or TTS???
If so, try lowering A/F ratio (richen) under the MAP (Manifold Absolute Pressure) kpa values in the 20kpa or lower columns, in the rpm areas you are having popping. This will get rid of it while still maintaining the rest of your tune. These motors idle in the 30kpa range so lowering idle A/F ratios will not help. When you let off throttle, your MAP values drop under the 30kpa, typically 20kpa or less, and this is when you are getting popping because your bike is probably at the stock 14.6 (closed loop) A/F ratio.
If so, try lowering A/F ratio (richen) under the MAP (Manifold Absolute Pressure) kpa values in the 20kpa or lower columns, in the rpm areas you are having popping. This will get rid of it while still maintaining the rest of your tune. These motors idle in the 30kpa range so lowering idle A/F ratios will not help. When you let off throttle, your MAP values drop under the 30kpa, typically 20kpa or less, and this is when you are getting popping because your bike is probably at the stock 14.6 (closed loop) A/F ratio.
Last edited by jmeiers; Mar 7, 2013 at 07:58 AM.
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Tourer
Joined: Sep 2012
Posts: 262
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From: Sacramento
so i am gonna try a different map the fat cat one. also still gottta wait for mount but. when i plug mine in my lab top i dont get rpm or anything on the screen so i dont know if everything is correct . it mainly only pops now if i rev like 3-4 times then let down slow. not blue flame its orange.