Decisions

This is where you get the idea of how I use blogs to gather info and remember my reasoning.

Options based on a bit of research
EDITS  - MAy 28 2015 in green

case - VS5

GEARBOX - stock gs150 - no choice

PRIMARY AND CLUTCH -

1.  Stock - have already. Stock 22 tooth vs3 clutch /stock cush gear 67 tooth
2.  Slight upgear - (in case I do get a little more power out of the motor) - need a VS5 clutch and adapt a p200e 23 tooth clutch cog. 
3. fancy base plate (DRT) made for a p200e clutch. This is 172 dollars but seems to be cheaper than finding a VS5 clutch. * needs more research - I WENT WITH THIS OPTION. It seems the German translations have created confusion, and the 23 tooth p200e clutch gear is too large a diameter to fit. I HAVE ORDERED A drt clutch cog so hopefully that will work. 
4. all out upgear kit requiring new clutches and rebuilding cush gear. not really necessary at his stage BUT worth considering the possible need in the future for some serious upgearing. 

TOP END

1. Remade 57.8 from scooter centre.  matched to a Grand Sport piston. 
2. As above with mild porting and enhanced port timings.... THIS ONE
3. crazy-ass Quattrini kit. no chance at this stage. 

CRANK

1. already bought a new standard crank. Most likely to use this due to time and money constraints. Yes I used this option.
2. A very tempting longstroke kingwave hand made crank - 400 euro

CARB - this is the hard part

1. stock - requires finding a carb (250-350 dollars) and praying it is half decent. Buying a choke mechanism, inlet manifold and airbox. Unlikely at this stage. 
2. put a 24mm phbl on a custom rear-facing 90 degree manifold. these manifolds are out of stock at SIP so here's hoping. STILL THE HOT FAVOURITE
3. The option I haven't thought of yet

EXHAUST

1. I bought a custom expansion chamber from a dude in the USA. I'll need to inspect it further and start planning appropriate port timing. This supports the more modern carb option. 
2. Stock/traditional sport is an option if the chamber robs the scooter of torque, especially if upgear option 2 or 3 are used. 

IGNITION

Vespatronic. only choice.

THis will require a special loom/harness which I already have. I may pop a non-used battery in there for touring use. 

I believe I also need a different key switch. No big deal as I don't have an original one anyway. 

RESEARCH