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1978 VBC - Muffler/Silencer Issue
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BoeingDriver
UTC
Enthusiast
2008 LX 50 & 1978 150 Super
Joined: UTC
Posts: 85
Location: Connecticut
 
BoeingDriver
Enthusiast
2008 LX 50 & 1978 150 Super
Joined: UTC
Posts: 85
Location: Connecticut
UTC quote
Hello all. I purchased a new VBC muffler from Italy, but it does not fit.

Is the old one incorrect, or is there a different part number that is correct.

See photos below:
Forum member supplied image with no explanatory text
@greasy125 avatar
greasy125
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Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
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Location: The state of insanity, SoCal
 
greasy125
Sergeant at Arms
@greasy125 avatar
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: UTC
Posts: 14987
Location: The state of insanity, SoCal
UTC quote
looks like you got a Friday la liga special!

is it just the bracket or is the whole thing fucky*?

*that's a technical term
@rowdyc avatar
rowdyc
UTC
Molto Verboso
GL, PK, PE200 with hack, Sears Rust Badge
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Location: Deep in the heart of Texas
 
rowdyc
Molto Verboso
@rowdyc avatar
GL, PK, PE200 with hack, Sears Rust Badge
Joined: UTC
Posts: 1346
Location: Deep in the heart of Texas
UTC quote
Those exhausts are for early Supers. 78 supers are 3 ports and require some massaging or a p type of exhaust. May need a longer bolt with a nut.

Throw up a pick of the swingarm where the exhaust screws in.
OP
BoeingDriver
UTC
Enthusiast
2008 LX 50 & 1978 150 Super
Joined: UTC
Posts: 85
Location: Connecticut
 
BoeingDriver
Enthusiast
2008 LX 50 & 1978 150 Super
Joined: UTC
Posts: 85
Location: Connecticut
UTC quote
Thanks for the feedback.

I thought I was loosing my mind. Time to tweek.
Mattgyver
UTC
Addicted
1974 Rally 200, 1974 Rally 200 with sidecar, Vespacross bike
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Posts: 609
Location: Atlanta
 
Mattgyver
Addicted
1974 Rally 200, 1974 Rally 200 with sidecar, Vespacross bike
Joined: UTC
Posts: 609
Location: Atlanta
UTC quote
Supers were originally 8 inch bike so the swingarm bracket for a Super pipe is in a different position. A stock Sprint pipe is usually used if the Super has been converted to 10 inch tires and that rusty pipe is Sprint.
OP
BoeingDriver
UTC
Enthusiast
2008 LX 50 & 1978 150 Super
Joined: UTC
Posts: 85
Location: Connecticut
 
BoeingDriver
Enthusiast
2008 LX 50 & 1978 150 Super
Joined: UTC
Posts: 85
Location: Connecticut
UTC quote
My Super is 8"
@socalguy avatar
SoCalGuy
UTC
bodgemaster
63 GL, 76 Super (x2), 74 Primavera (x2), 79 P200, 06 Fly 150
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Posts: 7178
Location: So Cal
 
SoCalGuy
bodgemaster
@socalguy avatar
63 GL, 76 Super (x2), 74 Primavera (x2), 79 P200, 06 Fly 150
Joined: UTC
Posts: 7178
Location: So Cal
UTC quote
This pleases me.
Positive
@birdsnest avatar
Birdsnest
UTC
Not So Moderator
VNB VSC VMA VSX - o9c vbc vmb
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Posts: 8465
Location: Hustletown, TX
 
Birdsnest
Not So Moderator
@birdsnest avatar
VNB VSC VMA VSX - o9c vbc vmb
Joined: UTC
Posts: 8465
Location: Hustletown, TX
UTC quote
SoCalGuy wrote:
This pleases me.
cosign
Positive
OP
BoeingDriver
UTC
Enthusiast
2008 LX 50 & 1978 150 Super
Joined: UTC
Posts: 85
Location: Connecticut
 
BoeingDriver
Enthusiast
2008 LX 50 & 1978 150 Super
Joined: UTC
Posts: 85
Location: Connecticut
UTC quote
Mystery solved...I think....

The new one did indeed fit after I moved the stand spring to the outboard slot and aligned the muffler properly.

It is on, but the clearance between the tire and the muffler is a little tight. Will it rub when I hit bumps, or did they design it "just right"?
@moto64 avatar
Moto64
UTC
Molto Verboso
'64 Motovespa 150S (177) , '65 VBB, '66 Allstate SF, '66 180SS
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Posts: 1952
Location: S.Salem, NY
 
Moto64
Molto Verboso
@moto64 avatar
'64 Motovespa 150S (177) , '65 VBB, '66 Allstate SF, '66 180SS
Joined: UTC
Posts: 1952
Location: S.Salem, NY
UTC quote
The wheel and the muffler move concurrently with the motor/swing arm unit and the tire should remain in the same position relative to the muffler.
Positive
OP
BoeingDriver
UTC
Enthusiast
2008 LX 50 & 1978 150 Super
Joined: UTC
Posts: 85
Location: Connecticut
 
BoeingDriver
Enthusiast
2008 LX 50 & 1978 150 Super
Joined: UTC
Posts: 85
Location: Connecticut
UTC quote
Ah ha, that makes sense.
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