to replace or RTV throttle body adapters? - Victory Forums - Victory Motorcycle Forum
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post #1 of 17 (permalink) Old 04-11-2014, 09:29 PM Thread Starter
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Default to replace or RTV throttle body adapters?

upon close inspection today, i noticed that my rubber throttle body adapters actually are cracked pretty badly on the upper side where they mount to the TB. i'd rather not pay $80 bucks for one if i can cure the problem with black RTV. has anyone else done this?

this also explains rough idle and hesitation while rolling on the throttle slowly i guess.

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post #2 of 17 (permalink) Old 04-11-2014, 10:09 PM
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You know your going to try thr RTV so try it. In the mean time order the parts and have on hand when the RTV doesn't work out

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post #3 of 17 (permalink) Old 04-11-2014, 10:14 PM
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VJ is right and if your dealer won't give you a 20% discount, Honda East Toledo will.

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post #4 of 17 (permalink) Old 04-11-2014, 10:16 PM
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I suggest trying to squeeze any large cracks closed while you're putting the rtv on. I learned the had way that your engine isn't happy after sucking rtv in. Note that my experience was on a 2 stoke dirt bike and a blob of rtv jammed the reed valve open.

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post #5 of 17 (permalink) Old 04-14-2014, 07:39 PM
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Even though they appear cracked (and can eventually crack through) likely it is surface cracking. If the bike isn't running funny from a vacuum leak caused by being cracked all the way through then I wouldn't worry about it and just silicone them up.

I've worked on many bikes over the years with cracked rubber intake boots like that. 95% of the time I don't replace them unless owner requested.

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post #6 of 17 (permalink) Old 04-14-2014, 07:43 PM Thread Starter
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Quote:
Originally Posted by mrtappan View Post
Even though they appear cracked (and can eventually crack through) likely it is surface cracking. If the bike isn't running funny from a vacuum leak caused by being cracked all the way through then I wouldn't worry about it and just silicone them up.

I've worked on many bikes over the years with cracked rubber intake boots like that. 95% of the time I don't replace them unless owner requested.
It stammers at idle and hesitates when slowly rolling on the throttle at cruise speed.

2007 Hammer, lowered, Bassani 2:1(updated), torque tubes, Dobeck AFR+.
2000 Firebird Formula, 6.0L, LS3 heads, etc, etc, etc, - SOLD
HM3(FMF) - 3/7 Lima Co. 2010 Helmand, Afghanistan
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post #7 of 17 (permalink) Old 04-14-2014, 08:24 PM
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Quote:
Originally Posted by rumblebox View Post
i'd rather not pay $80 bucks for one
$80 bucks is cheap. A cracked throttle body on a stock motor isn't great but having one on a built engine is really not great. I didn't know mine was cracked because the bike still ran pretty good. One day last summer, it scored a cylinder from running too lean. That was only a $3,500 mistake.
Don't cheap out. Replace it.


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post #8 of 17 (permalink) Old 04-14-2014, 09:35 PM Thread Starter
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Quote:
Originally Posted by Ferta_McDaniels View Post
$80 bucks is cheap. A cracked throttle body on a stock motor isn't great but having one on a built engine is really not great. I didn't know mine was cracked because the bike still ran pretty good. One day last summer, it scored a cylinder from running too lean. That was only a $3,500 mistake.
Don't cheap out. Replace it.

I definitely know the dangers of a lean condition, but I'm confident that black RTV will repIr the issue fine.

2007 Hammer, lowered, Bassani 2:1(updated), torque tubes, Dobeck AFR+.
2000 Firebird Formula, 6.0L, LS3 heads, etc, etc, etc, - SOLD
HM3(FMF) - 3/7 Lima Co. 2010 Helmand, Afghanistan
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post #9 of 17 (permalink) Old 04-16-2014, 08:54 PM
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Ah, I was thinking "cracked" like "dry clay." Like spiderweb cracking from age and heat. That's what I would call "busted."

But right on the silicone. The intake pulls so little pressure in reality that the silicone should hold. Personally, I'd replace one that's torn like that but a quick cheap silicone try can't hurt.

Current toys:
2013 Victory Hardball - VM1DR cams, Lloydz filter, timing wheel, PCV-AT, 1/4 turn throttle, modified pipes

2008 Yamaha Warrior -Churchkey intake, V&H Bigshots
2007 Scion TC 5spd
1997 F150 -used to pull my car hauler
1989 Nissan Hardbody -absolutely indestructible
1968 Coupe Deville -all black, so nice
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post #10 of 17 (permalink) Old 04-16-2014, 09:18 PM Thread Starter
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Im about to pull mine off and see how badly it's split.

2007 Hammer, lowered, Bassani 2:1(updated), torque tubes, Dobeck AFR+.
2000 Firebird Formula, 6.0L, LS3 heads, etc, etc, etc, - SOLD
HM3(FMF) - 3/7 Lima Co. 2010 Helmand, Afghanistan
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