Cylinder Victoria EM50, 40 mm, Fan-cooled S1V - Ported and machined by Tiveden engine, 4 hp

A really nice cylinder that is ported in the exhaust and coil ports, 4hp with a good power curve as you can see in the last picture. The cylinder has low blowdown which means that it is suitable for all existing exhaust systems on the market. Setup at the time of testing: - Original exhaust shortened - Jamarcol Fuego silencer - Original breaker ignition system - 17mm Bing with intake 11270