One other thing, though it may not matter in your case due to unknown history of the carbs, don't mix parts, especially the float valves and their respective seat. They wear as a unit and mixing them up can create leaks.
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christopher
Guest
Carbs and leaks
Carbs and leaks
Keith Krause, thanks for the reply. I have a starting point now to begin testing what could be wrong with my bike. It does start right up now where as before it took like 10 tries with the electric start then surged. In your previous post you mentioned , if my bike leaks while NOT running. It has started leaking gas down the front of the engine down the left side, which is the side of the kickstand, and the side my bike is leaning on. Gas moisture is on the front left side by the exhaust pipes and a small puddle on the ground. Pretty much to get it to stop i have to take my gas tank completely off and unattached the gas line. Do you know what could be causing the gas to leak out of the side of my engine? It didnt do that before i started working on my bike?
I did have a small block of wood braced under my carbs while it sat in the garage because gas was leaking into the airfilter box while the bike was off. My airfilter box is in the bike and attached to the intake, but i didnt have the airbox skrewed into its brackets, and therefore the weight of the airbox on the intake was causing my carbs to angle down leaning towards my airfilter box. And i thought this was causing gas to leak into my airbox, so i put a block of wood under my carbs and now the gas is leaking out the front. Even when everything is level it still seems to leak into the airfilter box. Has this ever happened to anyone before? It is smelling up my whole garage and part of my house. This is a minor problem but still an annoyance. Thanks for suggestions.
Carbs and leaks
Keith Krause, thanks for the reply. I have a starting point now to begin testing what could be wrong with my bike. It does start right up now where as before it took like 10 tries with the electric start then surged. In your previous post you mentioned , if my bike leaks while NOT running. It has started leaking gas down the front of the engine down the left side, which is the side of the kickstand, and the side my bike is leaning on. Gas moisture is on the front left side by the exhaust pipes and a small puddle on the ground. Pretty much to get it to stop i have to take my gas tank completely off and unattached the gas line. Do you know what could be causing the gas to leak out of the side of my engine? It didnt do that before i started working on my bike?
I did have a small block of wood braced under my carbs while it sat in the garage because gas was leaking into the airfilter box while the bike was off. My airfilter box is in the bike and attached to the intake, but i didnt have the airbox skrewed into its brackets, and therefore the weight of the airbox on the intake was causing my carbs to angle down leaning towards my airfilter box. And i thought this was causing gas to leak into my airbox, so i put a block of wood under my carbs and now the gas is leaking out the front. Even when everything is level it still seems to leak into the airfilter box. Has this ever happened to anyone before? It is smelling up my whole garage and part of my house. This is a minor problem but still an annoyance. Thanks for suggestions.
Did you leave the petcock in the prime position?
If not does it shut off the flow of fuel when the engine is not running as it should?
Most old petcocks leak, test it and replace it if it fails.
The petcock and the float valves should both be able to stop the flow of fuel, so even with a failed petcock you shouldn't get fuel overflowing unless one or more float valves are weak.
Check also to see if you are getting gasoline added into your engine oil, leaked fuel usually ends up in the oil.
You never really said how well it runs....
Are new plugs turning black, or is it just that the old black plugs are not getting themselves clean?
Are you riding it enough to get the plugs good and hot?
Information is a good thing...
If not does it shut off the flow of fuel when the engine is not running as it should?
Most old petcocks leak, test it and replace it if it fails.
The petcock and the float valves should both be able to stop the flow of fuel, so even with a failed petcock you shouldn't get fuel overflowing unless one or more float valves are weak.
Check also to see if you are getting gasoline added into your engine oil, leaked fuel usually ends up in the oil.
You never really said how well it runs....
Are new plugs turning black, or is it just that the old black plugs are not getting themselves clean?
Are you riding it enough to get the plugs good and hot?
Information is a good thing...
C
christopher
Guest
prime position
prime position
No, i dont leave it on the prime position when it is just sitting in the garage. Should I ? I either leave it on the "on" position or the reserve position. I thought it didnt matter cuz my bike always was left in the on position without leaks. My bike runs good and sometimes backfires when its warming up but not near as much as it did before. And i usually put new plugs in because they turn so black. But honestly, at this point, my plugs are black but my bike hasnt bogged out yet. Still waiting for that. I put hotter plugs in. Normally i use ngk B8ES and this time i used NGK B7ES because i was told it would burn hotter. So should i leave my petcock in the prime position when parked? A friend told me it shouldnt matter. But he's new to bikes too. THanks for your help.
prime position
No, i dont leave it on the prime position when it is just sitting in the garage. Should I ? I either leave it on the "on" position or the reserve position. I thought it didnt matter cuz my bike always was left in the on position without leaks. My bike runs good and sometimes backfires when its warming up but not near as much as it did before. And i usually put new plugs in because they turn so black. But honestly, at this point, my plugs are black but my bike hasnt bogged out yet. Still waiting for that. I put hotter plugs in. Normally i use ngk B8ES and this time i used NGK B7ES because i was told it would burn hotter. So should i leave my petcock in the prime position when parked? A friend told me it shouldnt matter. But he's new to bikes too. THanks for your help.
Do NOT leave it in the prime position.
Sounds like you have at least one float valve leaking. This assumes the floats are operating correctly and are adjusted correctly.
Sometimes parking at an angle (sidestand) aggravates a float valve problem. Parking on the centerstand sometimes minimizes the leaking but it's no cure.
Sounds like you have some work to do.
If you can locate a compression tester, check compression because it's quick and simple. If it passes, try to do the electrical tests. Once you know the electrical is allright, then focus on the carbs.
Sometimes parking at an angle (sidestand) aggravates a float valve problem. Parking on the centerstand sometimes minimizes the leaking but it's no cure.
Sounds like you have some work to do.
If you can locate a compression tester, check compression because it's quick and simple. If it passes, try to do the electrical tests. Once you know the electrical is allright, then focus on the carbs.
