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GS 150 carb problem.
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mig47
UTC
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GS 150 VS2
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Posts: 3
Location: Belgium
 
mig47
Lurker
GS 150 VS2
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Posts: 3
Location: Belgium
UTC quote
Fitted a polini CP23 but having problems getting it to run properly.
Starts well enough on full choke but when I close the choke it revs highly for about 5 seconds then dies completely.
Too much air, not enough fuel ?
What could cause this ?
Anyone else had experience with this carb? If so I would welcome your thoughts.
@srd0060 avatar
srd0060
UTC
Hooked
2022 Super tech/ 91 PX 200e/97 PX 200e
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Posts: 151
Location: Australia
 
srd0060
Hooked
@srd0060 avatar
2022 Super tech/ 91 PX 200e/97 PX 200e
Joined: UTC
Posts: 151
Location: Australia
UTC quote
mig47 wrote:
Fitted a polini CP23 but having problems getting it to run properly.
Starts well enough on full choke but when I close the choke it revs highly for about 5 seconds then dies completely.
Too much air, not enough fuel ?
What could cause this ?
Anyone else had experience with this carb? If so I would welcome your thoughts.
May be air and lack of fuel.

https://www.polini.com/en/technical-area/polini-cp-carburetors/instructions/
OP
mig47
UTC
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GS 150 VS2
Joined: UTC
Posts: 3
Location: Belgium
 
mig47
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GS 150 VS2
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Posts: 3
Location: Belgium
UTC quote
I have seen these instructions but am none the wiser. They explain how the carb works but not how to set it up from scratch.
@socalguy avatar
SoCalGuy
UTC
bodgemaster
63 GL, 76 Super (x2), 74 Primavera (x2), 79 P200, 06 Fly 150
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Posts: 7290
Location: So Cal
 
SoCalGuy
bodgemaster
@socalguy avatar
63 GL, 76 Super (x2), 74 Primavera (x2), 79 P200, 06 Fly 150
Joined: UTC
Posts: 7290
Location: So Cal
UTC quote
Clean the idle jet.
sophiante
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GS150
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Location: Denmark
 
sophiante
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GS150
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Location: Denmark
UTC quote
I am also working hard to make my GS150 run on CP23 carb.
My current choice is Main 90, pilot 36, needle second lowest pos. Air screw 1.5 out.
But I am not finished - I need improvements!

It is damn annoying to change jets in the bottom compared to the SI carbs where jets are placed on top.
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