Carb Broken

kingkang204 · July 27th, 2011, 08:04 PM

Long story short the carb got cracked, and now the rubber diaphragm is not sitting properly due to the circle in which it sits in is missing an edge. Now when the engine is revved it sounds like there is an air leak ( a puff puff puff sound) which wasn't there before. I have the option for picking up a carb for $180 shipped, should I just buy it and put that one in?

DaBlue1 · July 28th, 2011, 07:00 AM

Quote:

Originally Posted by kingkang204

...I have the option for picking up a carb for $180 shipped, should I just buy it and put that one in?

Yes.

ztrack157 · July 28th, 2011, 08:48 PM

Ive got one you can have for less.

kingkang204 · August 28th, 2011, 06:12 PM

So I bought the Carb from Ztrack. But heres a link to the sound I am talking about. I know its related to the carb, more specifically the right carb diaphragm not sitting right. Would this being ridden on hurt the engine?

Link to original page on YouTube.

The Sound can really be heard at around 17 and its like a puffing sound, the sound is typically enhanced when the bike is under load. Any Thoughts?

I apologize for not embedding it, I used the search but I don't think I was wording it right to find it.

Momaru · August 30th, 2011, 11:22 PM

I would say potentially yes, you could harm the engine riding it like this. 3 reasons:

1) Your engine is now running a lot more lean than it's designed to, and they're already almost too lean from the factory.

2) Add to that the fact that you're sucking in unfiltered air, so dirt and road crud is going straight to your combustion chamber...

3) Your pistons are now getting significantly different combustion ratios, so one of them is doing most of the work
Personally, I'd avoid riding it like that. You may be able to get away with it provided rides are very short, but is feeding the addiction worth possibly overheating and fubar'ing the engine? Up to you.

Nemesis · August 31st, 2011, 12:35 AM

I replaced a diaphragm once and those things are expensive!

Agreed, get that thing fixed before you ride it.

kingkang204 · August 31st, 2011, 08:12 AM

we put the cap back on and sealed it, so hopefully its not sucking anything in. I believe its defiantly running lean. I don't think the engine is running that hot, the ambient temperature in Washington is pretty cold, so hopefully its not over heating.

Hopefully the carb will be today or tomorrow so I can change it out.

July 27th, 2011, 08:04 PM	#1
kingkang204 ninjette.org guru Name: Matthew Location: Washington Join Date: Aug 2010 Motorcycle(s): Bike-less, Can I ride yours? Posts: 318	Carb Broken Long story short the carb got cracked, and now the rubber diaphragm is not sitting properly due to the circle in which it sits in is missing an edge. Now when the engine is revved it sounds like there is an air leak ( a puff puff puff sound) which wasn't there before. I have the option for picking up a carb for $180 shipped, should I just buy it and put that one in?

July 28th, 2011, 08:48 PM	#3
ztrack157 The Sportisi Master Name: Matt Location: Chico Join Date: May 2009 Motorcycle(s): 2008 Ninja 250 Posts: A lot.	Ive got one you can have for less. __________________________________________________ Sportisimoto USA is born.

August 30th, 2011, 11:22 PM	#5
Momaru ninjette.org certified postwhore Name: Paul Location: Roanoke, VA Join Date: Jun 2009 Motorcycle(s): 2008 Candy Plasma Blue 250R Posts: A lot.	I would say potentially yes, you could harm the engine riding it like this. 3 reasons: 1) Your engine is now running a lot more lean than it's designed to, and they're already almost too lean from the factory. 2) Add to that the fact that you're sucking in unfiltered air, so dirt and road crud is going straight to your combustion chamber... 3) Your pistons are now getting significantly different combustion ratios, so one of them is doing most of the work Personally, I'd avoid riding it like that. You may be able to get away with it provided rides are very short, but is feeding the addiction worth possibly overheating and fubar'ing the engine? Up to you. __________________________________________________ Proud member of the Blue Army

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August 28th, 2011, 06:12 PM	#4
kingkang204 ninjette.org guru Name: Matthew Location: Washington Join Date: Aug 2010 Motorcycle(s): Bike-less, Can I ride yours? Posts: 318	So I bought the Carb from Ztrack. But heres a link to the sound I am talking about. I know its related to the carb, more specifically the right carb diaphragm not sitting right. Would this being ridden on hurt the engine? Link to original page on YouTube. The Sound can really be heard at around 17 and its like a puffing sound, the sound is typically enhanced when the bike is under load. Any Thoughts? I apologize for not embedding it, I used the search but I don't think I was wording it right to find it.

August 31st, 2011, 12:35 AM	#6
Nemesis CVMA #74 WSMC #750 Name: Nemesis Location: On the track Join Date: Oct 2009 Motorcycle(s): All of them Posts: A lot.	I replaced a diaphragm once and those things are expensive! Agreed, get that thing fixed before you ride it.

August 31st, 2011, 08:12 AM	#7
kingkang204 ninjette.org guru Name: Matthew Location: Washington Join Date: Aug 2010 Motorcycle(s): Bike-less, Can I ride yours? Posts: 318	we put the cap back on and sealed it, so hopefully its not sucking anything in. I believe its defiantly running lean. I don't think the engine is running that hot, the ambient temperature in Washington is pretty cold, so hopefully its not over heating. Hopefully the carb will be today or tomorrow so I can change it out.