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Discussion Starter · #1 ·
This is more a general question and not specific to a '76 CB360, I think.

I have ridden the bike a couple of times since getting it. I had it out for a couple of spins around the block to see how it handled with different handlebars. I came back and parked it in the garage. I left the fuel valve on 'on' (not on purpose). The next morning the garage had a smell of gasoline. When I took a close look at the gas lines I noticed a small film of gas on the left side of the left carb just in front of the choke where the float meets the carb body. I wiped it and in a few seconds it was back. Not enough to drip. (Then I moved the fuel valve to 'stop'). I wiped it a few more times and it kept doing it. When I looked at it with a magnifying glass, I could see it seeping ever slow slowly and I guess the fumes were actually creating the film of gas above the gasket line. I put the bike up on the center stand and waited a while. It seems to have stopped. I have not put it back down on the side stand yet. I think the angle of the bike had something to do with it along with the valve being open.

My first inclination is that I need to replace the gasket. The amount of gas is negligible, but it does enough to give off a smell of gas.

Thanks for any opinions or suggestions.

jon
 

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Mine did that as well, even with the petcock turned off(see my build thread where my cheap butt made an internal gasket for that). Replace the gasket, it's a common thing on older bikes. I am so cheap I cut flat gaskets from gasket material I got at the parts store, just so I didn't have to order new ones and screw with round gaskets in square holes.(Anyone who has replaced them knows what I mean.) ;)
 

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Get new bowl gaskets. Mine did the same thing. It's just an O-ring. To make install easier get some crazy glue and put some dots around to hold the O-ring.

Also turn your petcock off after riding.
 

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You might wanna check your oil after this. The level of it and the smell...

Or just change it for cheap insurance.


GB :mrgreen:
 

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Discussion Starter · #5 ·
Bird76Mojo said:
You might wanna check your oil after this. The level of it and the smell...

Or just change it for cheap insurance.


GB :mrgreen:
Well, the smell of gas is gone and the seeping has stopped. I did remove the dip and give the oil a whiff. It does seem to have a slight smell of gas. It may just be my imagination, but it can't hurt to change the oil. That is a no brainer.
 
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