Throttle Body Adapter Options? - Victory Forums - Victory Motorcycle Forum
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post #1 of 13 (permalink) Old 02-01-2017, 12:06 PM Thread Starter
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Default Throttle Body Adapter Options?

I have a 2005 Victory Vegas 8Ball - I just purchased it a few weeks ago. I was talking to a Victory mechanic and he mentioned a few things to check to be sure it's running optimally. His number one item was to clean the throttle body and check if the throttle body adapter has delaminated and has any cracks in it. Needless to say I looked closer last night and do see hair line spider cracks on both sides. This may prove why I've recently had reason to believe it's running lean because it pops a lot and cracks/backfires between shifting after the engine warms up - I assume it's sucking air through these cracks. So now to my question... since this bike only has 5000 miles on it I'm wondering if putting an OEM throttle body adapter replacement on is such a good idea? Does anyone know if there are trusted aftermarket TB Adapters available or is it just the way it is and I'll need to use OEM part?

I found this info on the TB and TB Adapter that may be of some use to others; this is what I'll likely follow and use to clean and change mine out:
Cleaning the throttle body:

Checking and possibly changing the Throttle body adapter:

***From Victoryparts.net
1. Adapter, Throttle Body
item 1253335
$58.50
2. O-Rings x2
item 5412259
$2.94

Thanks everyone, look forward to hearing what people have to say.
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post #2 of 13 (permalink) Old 02-01-2017, 12:42 PM
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In your case the only thing you can do is replace the intake rubbers.
Not a easy job but its one you can do
say Paulie here who works at Honda east can give you the best price

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Last edited by visionjohnny; 02-01-2017 at 12:44 PM.
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post #3 of 13 (permalink) Old 02-01-2017, 01:02 PM Thread Starter
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Thanks for the advice/guidance and contact - I'll likely reach out to Paulie. Quick followup on this though - and I apologize since I'm new to victory - but the rubbers I assume is the TB Adapter correct? And Paulie has a Honda email - do Honda and Victory share similar parts? Again, just learning here so sorry if these are dumb questions.

Appreciate it VisionJohnny
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post #4 of 13 (permalink) Old 02-01-2017, 01:52 PM
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If you were feeling adventurous, you could do this, but it WILL require a re-tune for sure (meaning you'll need a fuel controller).

https://www.victoryforums.com/36-vict...e-victory.html
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post #5 of 13 (permalink) Old 02-01-2017, 02:41 PM Thread Starter
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Really interesting, thanks for the info. I have a few thoughts I'm wondering if you'd already got answers to.

1. Did you have to send that TB Adapter into Lloydz to have them make a hole diameter of any specific size for best performance, or did you just drill it out on your own; if so were there any specific or suggested hole diameter sizes?

2. Since inherently the TB Adapter is known to "break down" do you have any reason to believe compromising the rubber integrity by drilling a hole will cause the life of the adapter to puke tha much quicker, or pieces around the hole break of and get sucked in?

Thanks for this, it really makes me start to think of options H_C!

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post #6 of 13 (permalink) Old 02-02-2017, 08:53 AM
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Paulie will definitely hook you up with great prices. It's not that Honda and Victory share similar parts but Paulie owns or works at a dealership that sells multiple brands Victory being one of them.

Half crazy made the changes himself to the throttle body and I am unaware if you can send one to LLoydz or not.

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post #7 of 13 (permalink) Old 02-02-2017, 10:49 AM Thread Starter
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Thanks all and Cali Phil - I just sent Paulie an email to introduce myself and see what kinda price I can get.


Appreciate all the help!

2005 Victory Vegas 8 Ball
S&S Air Intake
FMB Chopper Custom Drag Bars - 4" straight rise, 2" pull back
Dead Creek Cycles Solo Swing Arm Bag
Conquest Customs - Ground Pounder Exhaust
Power Commander III USB Fuel Controller

Port Saint Lucie Florida
Been riding for 21 years
Previously Owned Bikes:
Suzuki GS750E (1st Bike)
Honda Aero 750 (2nd)
Triumph Daytona 675 (3rd)
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post #8 of 13 (permalink) Old 02-02-2017, 11:37 AM
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I wonder why the TB adapter is rubber anyway and not cast iron or aluminum. Anyone know?

2014 Cross Country Tour
Freedom Performance exhaust, Lloydz VFC and a Lloydz Intake/filter, Lloydz ATS.
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post #9 of 13 (permalink) Old 02-02-2017, 01:26 PM Thread Starter
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Not sure here but looks like it may be rubber to absorb some of the engine shake? I guess I would expect the engine mounts to do this.. but when I look at my engine's TB Adapter when the motor is running I notice it vibrating back and forth, or flexing is a better way to put it... since obviously the entire engine is vibrating some... Guess it's pretty easy to understand if that gets old, dry, brittle... how it is susceptible to cracking. Wonder if there's some sort of rubber treatment that would be good to spray on it every oil change to keep the rubber from drying out and cracking prematurely?

Or like you said... I vote for it to be Cast Iron or Aluminum; phat chance of that happening now right.

2005 Victory Vegas 8 Ball
S&S Air Intake
FMB Chopper Custom Drag Bars - 4" straight rise, 2" pull back
Dead Creek Cycles Solo Swing Arm Bag
Conquest Customs - Ground Pounder Exhaust
Power Commander III USB Fuel Controller

Port Saint Lucie Florida
Been riding for 21 years
Previously Owned Bikes:
Suzuki GS750E (1st Bike)
Honda Aero 750 (2nd)
Triumph Daytona 675 (3rd)
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post #10 of 13 (permalink) Old 02-03-2017, 08:08 AM
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I could imagine that someone could make a cast of the rubber one. Regarding protecting the rubber, IMHO there is nothing better than Aerospace 303!

2014 Cross Country Tour
Freedom Performance exhaust, Lloydz VFC and a Lloydz Intake/filter, Lloydz ATS.
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