Cylinder head -NAGY BLECHROLLER, CNC Il Naso- Vespa Wideframe Vespa V1 to V15, V30 to V33, 125U, ACMA (-1953), Hoffmann A, B, C, M24, Douglas Rod

Cylinder head "Il Naso" from NAGY for Vespa Wideframe with nose piston

Suitable for Vespa engines with a high nose piston (V1-30, Hoffmann, Acma up to 1953, 125 U, Douglas Rod). Not suitable for Motovespa models. The compression ratio is approx. 1:8. The head can be installed plug n play (depending on the piston crown, the original copper gasket must remain in place). It is not necessary to change the jetting, on the contrary. This worsens the result!

However, the spark plug (short thread) must be replaced. A heat value of 250 (e.g. Bosch W4AC / NGK B7HS) or more is recommended. To be on the safe side, the ignition timing should be changed by about 4 degrees towards late.