73' CB350F smoking like crazy!!!

VonYinzer said:
Did you just rebuild the engine?
Click to expand...

I didn't but maybe the guy I purchased it from did. Bike was purchased 3 weeks ago.

Please let me know your thoughts.



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Put your hand over it for a few seconds, if your hand feels moist or you seen some condensation then it's probably just blowby recycled air from the top end of the motor. If the other end of that hose is connected to the very top of the motor, that's the case and that hose usually connects to the airbox and the air is recycled back through the intake so you don't notice it.


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adventurco said:
Put your hand over it for a few seconds, if your hand feels moist or you seen some condensation then it's probably just blowby recycled air from the top end of the motor. If the other end of that hose is connected to the very top of the motor, that's the case and that hose usually connects to the airbox and the air is recycled back through the intake so you don't notice it.


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Click to expand...

Just checked it out.

You were right! Thank you!

So is this hose suppose to be doing this? And just hanging there?


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I don't know about your model but most other bikes have a nub on the air box for it to connect to
It may just be that it supposed to hang there
 
Is this the first time running this motor? Have you change the oil recently. Looks like condensation burning off or oil blowby.
 
alzcbz said:
Is this the first time running this motor? Have you change the oil recently. Looks like condensation burning off or oil blowby.
Click to expand...
I've been running for 3 weeks now. Oil was not changed recently.


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Is the smoking something new, or has it been doing it since you have been running it?
Have you done any maintenance to the bike?
 
The pipe isn't meant to vent out it should connect to the airbox its the blowback from top of motor along with condensation from the hot oil too it usually gets re-burnt cos its drawn thru your intake into cylinder head , most people with pods etc have a degree of this smoking especially if the motor is run hard cos there's vents out of maybe a cone filter or straight open tube ,usually worse when fresh oil is used or in damp condition eventually it tends to die away but mine took a month and even now it does it if I don't use the bike for a while keep an eye on oil level and that its getting oil to the rockers to be safe mate hope it helps
 
yorkie350 said:
The pipe isn't meant to vent out it should connect to the airbox its the blowback from top of motor along with condensation from the hot oil too it usually gets re-burnt cos its drawn thru your intake into cylinder head , most people with pods etc have a degree of this smoking especially if the motor is run hard cos there's vents out of maybe a cone filter or straight open tube ,usually worse when fresh oil is used or in damp condition eventually it tends to die away but mine took a month and even now it does it if I don't use the bike for a while keep an eye on oil level and that its getting oil to the rockers to be safe mate hope it helps
Click to expand...
I really appreciate you getting back to me.

I will look into this.

Also, I'm new to the site and I have to say this place rocks! You guys rock!

Have a nice weekend everybody.


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