hey guys i picked up a honda cb450 not to long ago and its in pretty good shape. it ran fine when i first got it and was told the head on the motor had been replaced. i didnt run it every day and over the winter it sat for a bit. i tried to crank it after a while and it was reluctant to start at first and the battery was low so i may have flooded it a bit. Anyway my problem is that when it did eventually turn over gas began pouring from the open ended rubber tubing that is connected to, what on a car would be called, a pcv valve. it is located at the top of the head and allows for fuel rich gas to return to the air intake. however it has been left open-ended because the airboxes were removed (i assume thats where it was origionally connected. well after about 30 secs of obscene amounts of fuel pouring from the tubing the engine bogs down shuts off and wont restart. this has happened twice and currently will not start. any ideas??
crazy gas leak on 73 cb450.......pcv??
- Thread starter chizzle
- Start date
Flugtechnik
My bike is not transportation, it is a respite
If you have a bunch of gas coming out of your cylinder head breather tube........ then you are FUCKED.
Post some pics of what you are talking about. It is most likely coming out of one of the carb overflow tubes and means your float valve is clogged up and you need to clean it out.
Post some pics of what you are talking about. It is most likely coming out of one of the carb overflow tubes and means your float valve is clogged up and you need to clean it out.
Thunderchild
Rumble, rumble.
Yeah, I would think that it's a stuck float valve/float problem. Are you SURE that it's from the breather tube on top of the head??? That would be mighty strange.
Drain your oil & replace your oil. Is there gas in it?
TC
Drain your oil & replace your oil. Is there gas in it?
TC