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Post by leseke1 on Sept 9, 2009 18:56:46 GMT 1
 Any of you kind Vespa chaps come across this before? Stripped sons T5 with a Polini 152 kit fitted & put new bearings & seals in .Scoots runnin fine around town,on open road it accelerates fine & reaches top speed no probs but when you shut off for a corner then open up again its got a flat spot.Worse on flat & downhill.Tried another tank off Skip which seemed to cure problem so fitted new tap & pipe to my tank,still doin it,put Skips back on & doin it wi his on now !!! Also fitted new float jet as well and float looks fine, its got me baffled. Any ideas.Cheers! Les.
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Post by leseke1 on Sept 9, 2009 19:35:09 GMT 1
PS theres no arrow on the piston but a wee triangle,I put it in wi it facing down towards the exhaust port.Is this right? I also cleaned the carb & filter etc.
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Post by goldeneye on Sept 19, 2009 21:17:17 GMT 1
what jets you got in the (presumably) standard carb?
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Any of you kind Vespa chaps come across this before? Stripped sons T5 with a Polini 152 kit fitted & put new bearings & seals in .Scoots runnin fine around town,on open road it accelerates fine & reaches top speed no probs but when you shut off for a corner then open up again its got a flat spot.Worse on flat & downhill.Tried another tank off Skip which seemed to cure problem so fitted new tap & pipe to my tank,still doin it,put Skips back on & doin it wi his on now !!! Also fitted new float jet as well and float looks fine, its got me baffled. Any ideas.Cheers! Les.
