The collector scooter from Bali’s very creative. In the hands of an antique dealer’s, scooters (Vespa) parents had been transformed into antiques worth tens of millions of rupiah. Antique old scooter now been sent to various countries, including the country of origin in the Italian scooter maker.

That Collector has a scooter shop and antique workshop in the area of Road By Pass Ngurah Rai, Sanur, Bali. There, and some employees Adnyana scooter repair the decades-old antiques. Vehicle production in 1950 until the 70th of the results obtained from hunting in some places, both on the island of Bali and Java.

Primavera scooter made in 1964 are now sold for USD$4500. While the former army kongo scooter made in 1963 after a Garuda restored sold for USD$3500. Nice scooter collection is sold by him about ranged USD$1500 to USD$4500. Every month he was able to sell three or four antique scooters with turnover reaching thousands dollar, so fantastic income.

The classic Harley-Davidson engines are two-cylinder, V-twin engines with the pistons mounted in a 45° “V”. The crankshaft has a single pin, and both pistons are connected to this pin through their connecting rods.[6]

This design causes the pistons to fire at uneven intervals. This is due to an engineering tradeoff to create a large, high-torque engine in a small space. This design choice is entirely vestigial from an engineering standpoint, but has been sustained because of the strong connection between the distinctive sound and the Harley-Davidson brand. This design, which is covered under several United States patents, gives the Harley-Davidson V-twin its unique choppy “potato-potato” sound.

To simplify the engine and reduce costs, the V-twin ignition was designed to operate with a single set of points and no distributor. This is known as a dual fire ignition system, causing both spark plugs to fire regardless of which cylinder was on its compression stroke, with the other spark plug firing on its cylinder’s exhaust stroke, effectively “wasting a spark.”

The exhaust note is basically a throaty growling sound with some popping. The 45° design of the engine thus creates a plug firing sequencing as such: The first cylinder fires, the second (rear) cylinder fires 315° later, then there is a 405° gap until the first cylinder fires again, giving the engine its unique sound.

The Revolution engine is based on the VR-1000 Superbike race program, developed by Harley-Davidson’s Powertrain Engineering team and Porsche Engineering in Stuttgart, Germany. It is a liquid cooled, dual overhead cam, internally counterbalanced 60 degree V-twin engine with a displacement of 69 cubic inch (1130 cc), producing 115 hp (86 kW) at 8250 rpm at the crank, with a redline of 9000 rpm.[76][77] It was introduced for the new V-Rod line in 2001 for the 2002 model year, starting with the single VRSCA (V-Twin Racing Street Custom) model.