Putoline Formula V-Twin Semi Synthetic 20w50 4 Stroke Oil 4 Litre Water Pumps These are for example

These are for example

Also fits the Hydraulic Conversions such as the HSL143163

open progressively and close again very quickly

Vespa - Dellorto/Spaco Carburettor - 24mm Standard Carburettor - SI24

So the speedometer needle shows either the revs or the speed

Putoline Formula V-Twin Semi Synthetic 20w50 4 Stroke Oil 4 Litre Water Pumps These are for examplePutoline Formula V Twin Semi Synthetic 20w50 4 Stroke Oil 4 Litre Putoline Formula V Twin 20W 50 is an advanced semi synthetic 4 stroke motorcycle oil which contains the unique Putoline N TECH additive system. N TECH additive technology guarantees: Excellent wet clutch compatibility Minimal engine and transmission wear Minimal oil consumption Excellent viscosity properties even at low temperatures, which significantly prevents wear on cold starts