ste s one wrote:Thanks for the replies , all food for thought .
I am about to restore my TV200 that I've ran for 30 years , the last 20 of which with stage 4 top end , AF clubman and 30 mm phbh with breathe sweet filter .
Wanting to put it back looking standard but can't bring myself to lose all the extra poke . Might get some bits together and book a bit of dyno time to see just how much I stand to lose before stripping the bike for restoration
One of my first Lambrettas was a TV200 which I own to this day, albeit in pieces. Like you, I have a plan in my head concerning the rebuild, but how far should anybody go with compromises?
Tyres are a no-brainer, but the rest of the build can resemble very precisely what we aspired to own "back in the day" Also, I recall that nobody wanted panels other than SX200 & would have them on their TV's. Yup! That's what I have planned
As controversial as ever
there's no point (excuse the pun) in going electronic for "reliability" but 12 volt was accessible.
Exhausts can be precise replicas.
The top end may as well comprise an overbored/overstocked piston ported set up so my choice will be between a Webster tuned barrel & H2 piston or a Rapido barrel with TS piston.
Then we get to carburation/air filtration.......
I have my doubts that an OEM air box will ever work well but do believe an alternative can work in the same space envelope & be fed just fresh air via the frame hole/scoop.
I will be attempting to run such a system when time allows.
Much depends on what the machine is intended for. If it's a street racer, then not much looks better than a VHB & polished bell mouth & now I know how to convert them to two stroke carbs. I have several in stock, including both hands. The alternative of a more civilised bike with well-engineered filtration is also appealing & as the carburettor will be mostly hidden, my choice is PWK on a downdraft manifold.