Vespa PX 221 help
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smiffy1968
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1.3mm at the moment. It'll probably hang up in the shed for now. The spacer.
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Norrie Bodge
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Nik221 wrote:And what's your squish band? Today I put my phbh 28 carb on and I have to say what a bloody difference!! I can't explain the difference!!
Squish is at 1,5mm m8
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smiffy1968
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What is your squish Nik?
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smiffy1968
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Have a look on here Nik. Carb set ups for Vespa and Lambreta. Good info.
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Ginch
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Or here - http://lfs.alexander-hepp.de/
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Nik221
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Today I went for a ride and my mate was in his car going behind me and he said that we were going 135 km/h and when I took the plug off it was a bit on the white side. Main jet is 115 idle55 x40 needle bottom notch don't know the atomizer is though.
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smiffy1968
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Hi Nik, good speed and good news[youtube] 
. I've upjetted mine to 135 main, still clean through rev range and fast! Going higher on main. You think you have main jet on your Delly right now?
. I've upjetted mine to 135 main, still clean through rev range and fast! Going higher on main. You think you have main jet on your Delly right now?