-
You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will see less advertisements, have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!
If you have any problems with the registration process or your account login, please contact us.
Carb leaking fuel into airbox
- Thread starter iceblast
- Start date
Help Support Buellxb Forum:
jetlee
Well-known member
How do you know it was 'leaking'? What did you do to determine this? Knowing how you determined this will help us help you.
From the info provided so far:
It's either "fuel standoff" or "reversion".
Is your bike stock? I'm going to assume so since you still have the airbox. In which case it's a little bit of both and is just inherent with the engine design.
Does it leak fuel while the engine is off and sitting? If that's the case tap the bottom of the carb with a rubber mallet to make sure the float isn't stuck.
From the info provided so far:
It's either "fuel standoff" or "reversion".
Is your bike stock? I'm going to assume so since you still have the airbox. In which case it's a little bit of both and is just inherent with the engine design.
Does it leak fuel while the engine is off and sitting? If that's the case tap the bottom of the carb with a rubber mallet to make sure the float isn't stuck.
I was riding about and when I ran out of fuel prematurely I looked at the side of the bike and found gas on the side of the engine, opened the airbox and found a good amount both on the filter and in the bottom of the airbox. Couldn't reproduce the results with the bike sitting. Ran carb cleaner through system. riding around town 30-35mph noticed nothing. Left town and went on the highway. Arriving at next stop the gas is on the side of the bike again.
jetlee
Well-known member
How dirty/clean is your air filter? How does your boot look?
jetlee
Well-known member
This is perplexing given it's new, low miles, and the issue only comes up on the highway.
That being said, most all carb issues can be directly related to the rubber boot that connects it to the "manifold". I would replace that (it's a few bucks and very straightforward), don't over tighten it, then go for a long ride and see how it does. Grab an extra boot just in case; or buy Thumpe's Super-Boot and consider it preventative maintenance.
The boot can get hairline cracks that cause all kinds of weird issues and wreak havoc when trying to troubleshoot those issues. First step is always "replace das boot."
i'm still not sold on it not being a stuck float, though. Thump the float bowl with a rubber mallet while you're changing the boot, for good measure.
That being said, most all carb issues can be directly related to the rubber boot that connects it to the "manifold". I would replace that (it's a few bucks and very straightforward), don't over tighten it, then go for a long ride and see how it does. Grab an extra boot just in case; or buy Thumpe's Super-Boot and consider it preventative maintenance.
The boot can get hairline cracks that cause all kinds of weird issues and wreak havoc when trying to troubleshoot those issues. First step is always "replace das boot."
i'm still not sold on it not being a stuck float, though. Thump the float bowl with a rubber mallet while you're changing the boot, for good measure.
jetlee
Well-known member
That doesn't sound like a boot issue to me, sounds like a stuck float. If fuel was coming out into the airbox from the carb then that definitely is it.
Just try tapping the float bowl with the back of a screwdriver and see if you can unstick it. If not just pull the bowl and unstick the float. spray some carb cleaner in their while you are it. This is a common issue, nothing to worry about.
Just try tapping the float bowl with the back of a screwdriver and see if you can unstick it. If not just pull the bowl and unstick the float. spray some carb cleaner in their while you are it. This is a common issue, nothing to worry about.
Generally dirty carbs. However, carbs are finicky. I have a 1000 4 cylinder carbed cruiser and all hell descends upon the bike when even such as a particle of dust makes it way through past the filter. When a float sticks, the bike barely runs it floods so bad. At least with the blast it just drops right out the intake. Sometimes the just get stuck in the on position. They are very delicate, hence taping the bowl usually unsticks them. Run seafoam through your system regularly and you will be fine.
Similar threads
