Lamborghini P250 Urraco blog by Lee Griffiths

Lamborghini Urraco P250 Pertronix 9MR-184 ignitor ii upgrade

I've been experiencing an occasional misfire when the car has been running. It an ignition problem as often the rev counter will drop to zero when it happens. The system installed was Superformances Super 4 amplifier system which uses the original points to trigger a CDU system. They no longer make and so I think something in my system was   

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Lamborghini Urraco P250 engine start

So to start the Urraco after it's been stood a few days with it's 4 x twin Weber carburettors you need to pressure up the electric fuel pump which fills the carbs, then prime the carbs with 5-10 pumps on the throttle and go for ignition :) It fires up first time but like a Spitfire splutters and dies a few times before you get most of the 8   

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