Vespa px200E boggie bottom end

[boxofbits]

Just rebuilt an engine px 200 e iris new seals bearings–new top end (all standard) as the engine had done alot of miles and needed a bit of tlc - Its really boggy at the bottom end—fine on tick over and once past ¼ throttle its off –but you have to rev it at the traffic lights else it stalls. I’ve tried a new float needle and a new plug and there no difference . I’ve checked no petrol in the gearbox oil- Adjusting the mixture screw does nothing either- Jets are 118 BE3 – 160 and pilot 55/160 – any ideas It did have 16 BE3 – 160 and pilot 50/160 in it when i got it- but it wouldn't tick over

[LI225Canada]

Did you happen to replace the fuel line?
I had simulare symptoms on a friends P200 after I replaced his leaking fuel line with one 6" longer than the original.
Cut it back to the same length as the original and all was good.

[boxofbits]

I will have a look, how long should it be?

[fastfrog]

what sort of slide do you have on it? A 04?
I guess you have an autolube PX200E so you don't need a 118 main jet but a 116.

[boxofbits]

Its a non auto lube it's its spanish 87 px 200 e iris I can't find a manual which says the standard jetting these model have

[boxofbits]

It's a 04 slide

[fastfrog]

and main jet is 118. My mistake.....
your mixture screw? how much did you wind it out?

[boxofbits]

2 turns out is the mixture screw , also the idel is fulling wound in to make it tick over

[LI225Canada]

I will have a look, how long should it be?

63cm.

[mick1]

Could be choke not fully shutting off......worth checking.