EVO All Evo Model Discussion

Intake Seals

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Old Sep 6, 2014 | 12:29 PM
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Default Intake Seals







On my 1996 Ultra Classic FI I decided to check the intake seals, I was having decal popping, I wonder why...
 
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Old Sep 6, 2014 | 01:01 PM
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Looks like your dog chewed on it
 
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Old Sep 6, 2014 | 01:26 PM
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Do you have stock mufflers? Aftermarket ones could be a reason for decel popps. Such decel popping was on mine '96 FI Ultra due to W&Hines open mufflers (now I swap to carb). Don't think chewed intake seals rise decel popp - more likely they can do cough through injector
 
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Old Sep 6, 2014 | 02:52 PM
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You might be onto something there......
 
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Old Sep 6, 2014 | 03:41 PM
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we see that very often - that happens when the one side of the intake is pulled all the way in before the other -

correct install is to work both sides at the same time so to speak and use a lube trans assembly lube white grease and others on the seals , so it slides into the correct location with out catching and being pinched -
 
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Old Sep 6, 2014 | 09:41 PM
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Originally Posted by unnnivers
Do you have stock mufflers? Aftermarket ones could be a reason for decel popps. Such decel popping was on mine '96 FI Ultra due to W&Hines open mufflers (now I swap to carb). Don't think chewed intake seals rise decel popp - more likely they can do cough through injector
Not true at all.
 
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Old Sep 7, 2014 | 04:22 PM
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I thought the bike was running good before, but I think that it is a little better now. I installed a AEM wide band A/F gauge, and it seems it is running a little lean, 15s and 16s, I change the power commander settings from 2000 to 4000 rpms. I will ride it to work tomorrow to see how it does, I will take my laptop to make changes if needed.
It has very little popping now.
 
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Old Sep 8, 2014 | 07:34 AM
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It work good, richened it up, and it was pretty much mid 14s to 1 driving to work, dropping 13s to 1 when gave it a little gas.
 
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Old Sep 8, 2014 | 08:25 AM
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I had the same issue with the CV carb intake. My seals just rotted in about a year or so. Both sides dry and brittle. It caused a situation where the bike wouldn't idle right and surged a lot.

I want one of those air fuel guages. Gotta look that up.
 
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Old Sep 8, 2014 | 10:13 PM
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Originally Posted by RLH3175
I thought the bike was running good before, but I think that it is a little better now. I installed a AEM wide band A/F gauge, and it seems it is running a little lean, 15s and 16s, I change the power commander settings from 2000 to 4000 rpms. I will ride it to work tomorrow to see how it does, I will take my laptop to make changes if needed.
It has very little popping now.
Couple of questions for ya:
Which pipe did you install the sensor , front or rear & how far down from the exhaust port. Thanks in advance.

Ride Safe,
Harold
 
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