OP
UTC

Member
65 small frame and 64 large frame Allstate
Joined: UTC
Posts: 39
Location: Maine
 
Member
65 small frame and 64 large frame Allstate
Joined: UTC
Posts: 39
Location: Maine
UTC quote
Can an injected 20-20 carb ( the D version) be used without injection?
If so, are any mods required?
@socalguy avatar
UTC

bodgemaster
63 GL, 76 Super (x2), 74 Primavera (x2), 79 P200, 06 Fly 150
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Posts: 7156
Location: So Cal
 
bodgemaster
@socalguy avatar
63 GL, 76 Super (x2), 74 Primavera (x2), 79 P200, 06 Fly 150
Joined: UTC
Posts: 7156
Location: So Cal
UTC quote
Yes, injected can be used on non-injected. Only mod required is the slide puller has to be changed to the kind that connects directly to the cable instead of to the oil pump.
@xantufrog avatar
UTC

Moderibbit
1980 P200E - "Old Rusty", 1976 ET3 Primavera
Joined: UTC
Posts: 8892
Location: Atlanta, GA
 
Moderibbit
@xantufrog avatar
1980 P200E - "Old Rusty", 1976 ET3 Primavera
Joined: UTC
Posts: 8892
Location: Atlanta, GA
UTC quote
Are you trying to disable autolube? Or just use an injected carb on an already non-injected bike?
@sdjohn avatar
UTC

Johnny Two Tone
'15 GTS300, '86 PX125EFL, '66 VBB, '01 ET4
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Posts: 8546
Location: San Diego, CA
 
Johnny Two Tone
@sdjohn avatar
'15 GTS300, '86 PX125EFL, '66 VBB, '01 ET4
Joined: UTC
Posts: 8546
Location: San Diego, CA
UTC quote
if it's a formerly autolube bike, I like to fill the channel in the bottom of the carb box with RTV to avoid any air leak there where oil would have been flowing.
@scooterist avatar
UTC

Molto Verboso
71' Sprint Veloce , 05' Vespa PX150, 1978 P200E
Joined: UTC
Posts: 1558
Location: Tucson, AZ
 
Molto Verboso
@scooterist avatar
71' Sprint Veloce , 05' Vespa PX150, 1978 P200E
Joined: UTC
Posts: 1558
Location: Tucson, AZ
UTC quote
I think you also have to change the gasket between the carb and the rotary intake base, the gasket comes with a hole for the oil but since you are doing it the other way around I think you are going to be fine. I had to RTV mine because I also did the conversion.

You can plug the oil line if you want to as well.
OP
UTC

Member
65 small frame and 64 large frame Allstate
Joined: UTC
Posts: 39
Location: Maine
 
Member
65 small frame and 64 large frame Allstate
Joined: UTC
Posts: 39
Location: Maine
UTC quote
xantufrog wrote:
Are you trying to disable autolube? Or just use an injected carb on an already non-injected bike?
Looking at an injected carb for a non-injected bike.
It's a 64 Allstate I'm converting to a VBB/VBC front end.
The piston and cylinder are seized beyond hope but I was able to salvage the crank and con rod without any damage.
Thinking of going with either the 57 or 61 oversized set from Mercato, but the 61 would probably need a 20-20 carb.
I've seen 20-20 D's for a reasonable price, hence the original question.
@gickspeed avatar
UTC

Ossessionato
Joined: UTC
Posts: 2164
Location: Racing Capital of the World
 
Ossessionato
@gickspeed avatar
Joined: UTC
Posts: 2164
Location: Racing Capital of the World
UTC quote
Paulc wrote:
Looking at an injected carb for a non-injected bike.
It's a 64 Allstate I'm converting to a VBB/VBC front end.
The piston and cylinder are seized beyond hope but I was able to salvage the crank and con rod without any damage.
Thinking of going with either the 57 or 61 oversized set from Mercato, but the 61 would probably need a 20-20 carb.
I've seen 20-20 D's for a reasonable price, hence the original question.
Money better spent would be to go to an uprated spring in the front end. Money saved can be spent on a Pinasco 177, 20.20 carb, decent new crank, and BOX exhaust.

You can thank me later. 😁
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@sdjohn avatar
UTC

Johnny Two Tone
'15 GTS300, '86 PX125EFL, '66 VBB, '01 ET4
Joined: UTC
Posts: 8546
Location: San Diego, CA
 
Johnny Two Tone
@sdjohn avatar
'15 GTS300, '86 PX125EFL, '66 VBB, '01 ET4
Joined: UTC
Posts: 8546
Location: San Diego, CA
UTC quote
Gick you've got me thinking I should do that with my 2 port engine that I've got sitting about, maybe it should go in the vbb...
@gickspeed avatar
UTC

Ossessionato
Joined: UTC
Posts: 2164
Location: Racing Capital of the World
 
Ossessionato
@gickspeed avatar
Joined: UTC
Posts: 2164
Location: Racing Capital of the World
UTC quote
sdjohn wrote:
Gick you've got me thinking I should do that with my 2 port engine that I've got sitting about, maybe it should go in the vbb...
happy i get some guys thinking about better ways to spend $$$.
OP
UTC

Member
65 small frame and 64 large frame Allstate
Joined: UTC
Posts: 39
Location: Maine
 
Member
65 small frame and 64 large frame Allstate
Joined: UTC
Posts: 39
Location: Maine
UTC quote
Not looking to create a 60 mph barn burner, just a backroads cruiser. Plus I really don't want to spend that kind of money on this bike.
@gickspeed avatar
UTC

Ossessionato
Joined: UTC
Posts: 2164
Location: Racing Capital of the World
 
Ossessionato
@gickspeed avatar
Joined: UTC
Posts: 2164
Location: Racing Capital of the World
UTC quote
Paulc wrote:
Not looking to create a 60 mph barn burner, just a backroads cruiser. Plus I really don't want to spend that kind of money on this bike.
cool. because you certainly will not create a 60 mph barn burner with that setup. just better ways too spend your money.
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