TGREEN Posted June 30, 2009 Share Posted June 30, 2009 Just bought a 79 DT250. Gas cap has a valve where hose should be connected. Mine did not have this hose. What is it for and where does it go to. Thanks. Link to comment Share on other sites More sharing options...
Moderator Airhead Posted June 30, 2009 Moderator Share Posted June 30, 2009 Just bought a 79 DT250. Gas cap has a valve where hose should be connected. Mine did not have this hose. What is it for and where does it go to. Thanks.Its just a vent hose and is only connected to the gas cap, the other end just exits down behind the instruments or somewhere convenient. It shouldnt have a valve connected...should be open to atmosphere so you dont pull vacuum in the tank ...Paul Link to comment Share on other sites More sharing options...
shed hermit Posted June 30, 2009 Share Posted June 30, 2009 the valve is a breather to let air into the tank as the petrol comes out to avoid causing a vacum. the pipe is just an extension of the valve and stops any dirt falling into the tank. the pipe hangs over the handlebars and under the clocks, or if there is a hole in the main central nut holding the steering stem on stick it in there. Link to comment Share on other sites More sharing options...
shed hermit Posted June 30, 2009 Share Posted June 30, 2009 Its just a vent hose and is only connected to the gas cap, the other end just exits down behind the instruments or somewhere convenient. It shouldnt have a valve connected...should be open to atmosphere so you dont pull vacuum in the tank ...Paul ok so you can type faster than me Link to comment Share on other sites More sharing options...
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