Author Topic: Carbs are pissing out gas on my 1977 550k  (Read 825 times)

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Offline FillionJ

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Carbs are pissing out gas on my 1977 550k
« on: August 12, 2013, 09:31:25 AM »
So when I turn my gas on it immediately starts leaking from several spots. Ther is also a pin size hole on the carb which also squirts out gaz, I am not sure what that hole is or what that would indicate. I feel like the floats may be stuck in the carbs aswell as the carb gaskets should be replaced. I have never cleaned out carbs before so would anyone have any tips or advice?

Offline goldarrow

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Re: Carbs are pissing out gas on my 1977 550k
« Reply #1 on: August 12, 2013, 09:50:05 AM »
if float stuck, try tapping the carbs with rubber mallet. 
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Offline Bankerdanny

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Re: Carbs are pissing out gas on my 1977 550k
« Reply #2 on: August 12, 2013, 09:53:58 AM »
More info on your bike please.

Was it working fine, then just started leaking? Is it a project bike that sat for a few years and you decided you would try to start it? Did you try and clean the carbs without replacing the gaskets?

There isn't enough details about your bike in your post to offer anything but the most generic of advice.
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Offline FillionJ

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Re: Carbs are pissing out gas on my 1977 550k
« Reply #3 on: August 12, 2013, 10:08:24 AM »
it is a project bike which was sitting fior a year or two. when it was parked it did run. i have not tried to clean the carbs yet. i did just clean the gaz tank since i noticed a good amount of rust in there. im assuming the rust made its way to the carbs.

Offline Bankerdanny

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Re: Carbs are pissing out gas on my 1977 550k
« Reply #4 on: August 12, 2013, 10:13:16 AM »
That's what I suspected.

It's it likely a combination of dried out seals and gunk clogging up the floats.

Order a set of gaskets (don't waste time and money on kits that include needles and jets). Pull the carbs (heat is your friend, use a hair dryer to warm the insulators that connect the carbs to the manifolds). Buy a couple cans of carb cleaner, visit the local guitar shop for a few scrap pieces of E string, and give the carbs a good cleaning.

It's not a hard job and you should be able to do it in a single weekend, but plan to use every bit of the two days. It's not a job that can be done in 2 or 3 hours, especially if you are learning as you go.
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Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline FillionJ

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Re: Carbs are pissing out gas on my 1977 550k
« Reply #5 on: August 12, 2013, 10:15:54 AM »
perfect thanks so much ! ill keep ya posted on how it goes.