Patent ID: 7540263

Claim:
A fuel injection system for a two-stroke internal combustion engine ( 1 ) elastically housed in a compartment and comprising a carburettor ( 30 ) with which there are associated an induction port ( 9 ) for the air/fuel mixture and dispenser means fixed to a fuel accumulation system ( 25 ) communicating with a first aperture ( 14 ) positioned below the induction port ( 9 ) and with a second aperture ( 15 ) positioned above the induction port ( 9 ), said apertures ( 14 , 15 ) being alternately opened by the skirt of the piston ( 3 ), characterised by the fact of comprising a non heat-conducting elastic intake header ( 22 ) positioned between the carburettor ( 30 ) fixed to the wall ( 40 ) of the compartment housing the engine ( 1 ) and the fuel dispenser means connected to the fuel accumulation system ( 25 ), said heat-conducting elastic intake header ( 22 ) comprising a part of a fuel feed conduit ( 10 ) intercepted by said dispenser means, and a channel ( 23 ) in fluid communication with said induction port ( 9 ).