The Silver Fern needs a new brake system. We use a complete LML disc brake for this. A T5 fender is to be mounted on the new steering tube. Since the T5 mud flap is a bit smaller, it is necessary to move the bracket on the side. The existing holder is therefore removed and the point at which it is to be welded on is prepared. [...]
As already mentioned, the inlet of the 28th Keihin is a possible problem area. Because the inlet is slightly above the lowest position in the tank, there is a risk that the flow of gasoline will be obstructed by an air bubble. To avoid this problem as much as possible, we are installing a fuel pump. The petrol pumps that are usually used are more than [...]
Today Jonas was our guest on our dynamometer. With a Polini 133 in the gray cast iron version, the young man has already achieved a very impressive 28,3 hp with our test fire magic exhaust. In addition to the gray cast iron Polini, which was more than neatly processed by Jonas, a Polini membrane and a 35 mm Keihin PWK carburetor help the engine [...]
The next step is to install the clutch. The spacer has a bevel around the hole on one side. The side with the chamfer belongs in the direction of the crankshaft, as the crankshaft stub usually has a small radius at this point in order to counteract the notch effect. The crescent wedge or Woodruff Key should as far as possible [...]
We clean the motor housing thoroughly with brake cleaner and compressed air before assembly, because after all we have produced quite a bit of aluminum chips. To install the bearings, we heat the motor housing with a hot air blower to approx. 90 °. The ball bearings are treated with cold spray. Almost all bearings are shrunk in this way. The only exception is the B188 for [...]
The gearbox selection depends on the engine concept, or on the expected performance curve and the respective application. To this day there have been repeated attempts to improve the poorly graded PX gearbox for tuned engines. Above all, the legendary 5-speed gearbox, which has failed several manufacturers over the years. Some rare Vespa Sprint […]
With bearing dummies, we insert the crankshaft into the engine housing to measure the control angle. We will soon have the storage dummies available for you in the shop. The two halves of the housing are fixed in the stator housing with the 4 nuts and the cylinder is mounted to measure the control angle. The Newline likes rather low steering angles. At the outlet under [...]
Today we are preparing the Malossi 210 for installation. So that the full depth of the original overcurrent ducts in the motor housing can be used, the windows in the cylinder base are expanded. Remove the depth of the channels and transfer it to the cylinder base. The window is first roughly cut out with a cutting disc. The important thing is not to the final dimension [...]
The new heart of the Silver Fern comes from a PX200 motor housing on which we put an MMW Evo2 membrane box. The lower part is mounted first for marking. The inlet is roughly milled using these markings. After we have removed what feels like 2kg of aluminum from the inlet area, the rough shape looks like this. [...]
The “Silver Fern” comes from the close circle of friends of the SCK and will be used again this year after a long break for everyday life and trips to Vespa meetings. We would like to introduce you to the associated engine concept here. We are aiming for a performance of around 25HP with a lot of pressure in all positions. With sufficient torque [...]
