Hi guys. I am currently in the process of modifying my 2006 LX 150. It's part of a project that started 2 years ago, and maybe I will post it here once it's closer to final, at the moment it's a work in progress and I still don't have too many photos of the part two of the project.
For anyone wanting to check out how it's evolving, you can find it all here (vmtuning.blogspot.com), along with the mod of my other ride, the Honda Zoomer (basically a fuel injected Ruckus, too bad Honda stopped making them for the european market in 2012, you guys still have the Ruck). - Disclosure: long read
Anyway, the final part of it, which is still under planning, is gonna include a 187cc cilinder (probably from Malossi) and replacing the carb as it's having some small hesitations (reed valve from what I understood from my mechanic). I guess I should match the cilinder with upgraded jets (don't have much experience with that but a bigger cilinder would probably need more fuel).
Does anyone have any experience to tell me which carb is better for a 190?
Wouldn't want to go into racing carbs like Mikuni or Malossi as from what I understand I would lose the e-shock for one and would have to modify or let go of the helmet case under the seat, Naraku and Genuine Buddy are also a no go as the first is listed as a B-class replacement (very cheap though) and the second is not available in Europe. So I guess I should stick with the Keihins.
Her original carb is a Keihin 2600A, with a 82 main jet and a 35 idle jet which is still available from SIP. I see Scooterwest is selling a variant called 2601A for double throttle cable, although I never heard of a Vespa having double throttle cables and I'm not sure I can find it in Europe.
SIP also has one called Keihin 2700B with a 82 main jet and a 42 idle jet, which is supposedly for the LX125, although I am not sure why, as in the compatibility list there is also the LX150 listed, and a Keihin 2708 (no info on what jets are on that one) or if there is any other difference from 2700B and 2600A.
I am totally lost as to which of the carbs I should buy (if there's actually any difference between them) and which jet to keep or change with the larger cilinder. A bit of help would mean a lot.