kindest Posted September 2, 2010 Share Posted September 2, 2010 what I'am assuming is gasoline.. what else could it be. Now that she's getting rode more and more she is becoming wet on the exterior surface of the carb holder intake manifold boots. As you can tell from the pics they are old, cracked, beat up etc. I take it they need to be replaced to fix the problem. just making sure theres no other serious problem going on.. Also the little hose bib that comes out of it is capped.. the right side one has a vacumn line going to what looks like the petcock but the one in question on the left is capped.. is that normal? 1st pic circles the area that becomes wet after a ride second pic shows the cap in question the previous owner had a double a battery as a cap on another place..so I worry about the "caps". hehe suprised that new rubber for both sides is pretty cheap. 30 bucks on ebay. not bad at all. Link to comment Share on other sites More sharing options...
Ebola Monkey Posted September 2, 2010 Share Posted September 2, 2010 what I'am assuming is gasoline.. what else could it be. Now that she's getting rode more and more she is becoming wet on the exterior surface of the carb holder intake manifold boots. As you can tell from the pics they are old, cracked, beat up etc. I take it they need to be replaced to fix the problem. just making sure theres no other serious problem going on.. Also the little hose bib that comes out of it is capped.. the right side one has a vacumn line going to what looks like the petcock but the one in question on the left is capped.. is that normal? 1st pic circles the area that becomes wet after a ride second pic shows the cap in question the previous owner had a double a battery as a cap on another place..so I worry about the "caps". hehe suprised that new rubber for both sides is pretty cheap. 30 bucks on ebay. not bad at all. Yeah, replace the boots. That one should be capped. Use it when you sync the carbs. Link to comment Share on other sites More sharing options...
HoughMade Posted September 2, 2010 Share Posted September 2, 2010 Those boots need to be replaced, but it seems odd to me that gas would seep from the inside out. Usually the concern is air leaking through the cracks because there is vacuum inside the boot. If there is vacuum inside when the engine is running, gas should not seep out. The only exception I could think of is if raw gas is leaking in when the engine is off due to a leaking float needle or bad petcock. There's probably something I am missing here. Link to comment Share on other sites More sharing options...
kindest Posted September 2, 2010 Author Share Posted September 2, 2010 Those boots need to be replaced, but it seems odd to me that gas would seep from the inside out. Usually the concern is air leaking through the cracks because there is vacuum inside the boot. If there is vacuum inside when the engine is running, gas should not seep out. The only exception I could think of is if raw gas is leaking in when the engine is off due to a leaking float needle or bad petcock. There's probably something I am missing here. darnit. was hoping there was nothing else going on but it sounds like there is. thanks guy will replace the rubber and go from there. Link to comment Share on other sites More sharing options...
chris66 Posted September 2, 2010 Share Posted September 2, 2010 as some have said the cap is correct and only removed to sync carbs. this must be a air tight fit. the rubbers do need changing for one the will be sucking minute amounts of air causing your mixture to be out also when the inlet valve is closed there will be a fine mist of fuel / air in these rubbers so possible seeping out but as kindest said it could be a leak from somewhere higher.chris Link to comment Share on other sites More sharing options...
kindest Posted September 3, 2010 Author Share Posted September 3, 2010 as some have said the cap is correct and only removed to sync carbs. this must be a air tight fit. the rubbers do need changing for one the will be sucking minute amounts of air causing your mixture to be out also when the inlet valve is closed there will be a fine mist of fuel / air in these rubbers so possible seeping out but as kindest said it could be a leak from somewhere higher.chris alright guys thanks. when your bike is not in use do your turn the petcock to off so it doesn't have a chance of leaking somewhere down below. Link to comment Share on other sites More sharing options...
HoughMade Posted September 3, 2010 Share Posted September 3, 2010 I do, but I have a manual petcock. Looks like you have the original vacuum petcock. If it is working correctly, no need for you to do that. Link to comment Share on other sites More sharing options...
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