Modern Vespa

I've been busy so my local shop installed my Pinasco 177 kit today on my PX125E. Currently it is set with a 108 main(slightly rich) and a B7HS plug. Should I run it for a while with the 108 before dropping down to a 105main? Oh, the bike has a 20/20 carb with a Sito+

Thanks

108 is the jet Pinasco recommends for the 20/20, so I'd stick with it for now. You could try a BE4 mixing tube (if you're not already running it) if you want to lean it out a bit. Make sure your idle circuit (screw at the back of the carb) is dialed in, too, since that'll have some effect throughout the throttle range.
Timing should be at 19 btdc.
The aluminum cylinder has different characteristics than the cast iron you are probably used to, so don't make any judgements about whether it's running rich or lean until you've run it at least 5 minutes or so and everything is up to operating temp. And read your plug.
Good luck.

Thanks. I will check to see if I'm running that mixing tube.

I am a newbe so I have little experence when it come to kits. However, I spent alot time researching, posting and making phone calls. I have a 2005 PX 150 with e-start and disk brake. Durning my research I learned alot and decided on the Pinasco 177Au. I chose this kit because of its reputable high quality, reliability and longevity for every day sport riding and touring. I am only interested in optimizing the mostly low-mid power range band for city traffic and steep hills. Also, I want a bit more on top end and to be able to cruise at 100km/hr with no issues in overheating. Full race setup is too narrowally focus for my objective and seems too much trouble to tweak it right; from what I read, race set up is unrealible and short live.

From my postings, I have recieved many excellent and sound advice and suggestions, but there was also too many contradictions for me to make an educated decision base on solid facts. Also many recommendations were for street race setup. I concluded that I should contact Pinasco. I felt that it was best to stick within the scope of Manufacture recommendations and follow the installation and modification in manual that came with the kit; since they designed the unit and have the engineering and technical knowledgable and experience to back it up there claim.

My SET UP

-100% stock 2005 Vespa PX 150 Canadian Edition with e-start.
-Pinasco 177 Aluminum cylinder kit for PX model.
*Note: For PX with e-start, a .05mm-1.0mm grinding is required on the cylinder (not on the sealing face), and only where the cylinder is in contact with the starter gear; you won't find this info in the installation manual, I recieve a email from the Pinasco Staff
-Sito plus exhaust.
-SI 20/20 carb will be reconfigured with the Atomizer BE3 - 160 and depending on altitude108-110-112 or 114 main jet as recommended by the Pinasco Staff. Also a hole will be drilled in the air filter box as recommended in the installation manual
-timing change to 20 degrees
-Ater 500km breakin 2% mix will be maintained as printed in Pinasco installation manual. I had Pinasco send me an email to comfirm it is correct, only if the modification is within the scope of the Pinasco upgrade recommendation

in about a year from now, My second and final upgrade, I think?

-Match and balance cut crankshaft
-SI 24/24 oil injection, possibly a vortex
-SIP T5 pro exhaust
-burtubo shocks


Matching and Balance is an Engineering Art, Best regards, rudy812.

I have a 05 PX150 motor in my Sprint..air filter drilled out...Pinasco pipe and I'm running a 105 main jet.

Please let us know how that Kit is working out for you. I'm about to buy the Pinasco Kit as well.