Piaggio Velofax - Saturday February 24th 2024

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 Piaggio Velofax - A little progress made...


After a great deal of online searching, Graham eventually found VE UK selling a throttle slide for the bike's Dellorto SHA 14 12 C Carburettor and was pleased to find that it fitted correctly.  Jess assisted by fitting the top end of the throttle cable into the twist grip.  The bike is fitted with a pump fed two lubrication system.  The throttle cable divides into two near the engine.  One cable goes to the carb to control the throttle.  The other cable goes to the oil pump to control the amount of two stroke oil pumped into the engine, depending on the throttle opening.  Unfortunately the oil pump cable on our bike appears to be seized and the screws that would give access to the pump are not only very hard to get at, but also likely to be heavily corroded.  So a decision has been made to run the bike with a petroil mixture.  In other words mixing a small but carefully calculated amount of two stroke oil with the petrol.  There is a danger with this because the oil in the fuel decreases the amount of fuel in the fuel air mixture.  On a high performance engine this weakening of the mixture could result in poor performance and even engine damage.  On our humble Velofax I suspect it will not make a jot of difference.



Our humble Velofax before the engine was replaced in the frame.