Register Community Calendar Today's Posts Search

Go Back   GZ 250 Forums > GZ250-Specific > Troubleshooting

Reply
 
Thread Tools Display Modes
Old 06-22-2012, 06:54 AM   #11
Water Warrior 2
Senior Member
 
Join Date: Dec 2006
Location: Squamish B.C Canada
Posts: 11,409
Re: smoking pipes

If there is a hole drilled in the air box you better cover it over with duct tape soonest. The air flow is a reverse flow compared to almost everything else out there. You are getting unfiltered air into the engine. Pull out the air filter and you will understand. It gets dirty from the inside first because the air enters from the center and flows out through the filter material.



Login or Register to Remove Ads
Water Warrior 2 is offline  
Reply With Quote
Old 06-22-2012, 09:57 AM   #12
jonathan180iq
Super Moderator
 
jonathan180iq's Avatar
 
Join Date: Jan 2007
Location: Dalton, GA
Posts: 3,996
Re: smoking pipes

Quote:
Originally Posted by mynameistrey
It does feel a little jerky when i try to cruise at a certain speed, around 25mph is where i feel it the most. Is that carburetor related? Theres also a hole drilled into the top of my air box, could that be the problem?
Not really a problem. It's just unfiltered air being pulled into the engine.....

How large is the hole?

Sounds like some previous owner tried to pull a Honda Civic intake mod on the GZ250 and made a mistake.
jonathan180iq is offline  
Reply With Quote
Old 06-22-2012, 03:20 PM   #13
mynameistrey
Junior Member
 
Join Date: Jun 2012
Location: jax fl
Posts: 9
Re: smoking pipes

Quote:
Originally Posted by jonathan180iq
Quote:
Originally Posted by mynameistrey
It does feel a little jerky when i try to cruise at a certain speed, around 25mph is where i feel it the most. Is that carburetor related? Theres also a hole drilled into the top of my air box, could that be the problem?
Not really a problem. It's just unfiltered air being pulled into the engine.....

How large is the hole?

Sounds like some previous owner tried to pull a Honda Civic intake mod on the GZ250 and made a mistake.
Not that big. The width of a nail or screw. I think he was using it to spray carb cleaner through



Login or Register to Remove Ads
mynameistrey is offline  
Reply With Quote
Old 06-22-2012, 04:01 PM   #14
jonathan180iq
Super Moderator
 
jonathan180iq's Avatar
 
Join Date: Jan 2007
Location: Dalton, GA
Posts: 3,996
Re: smoking pipes

.....that's really interesting.

Where is it located exactly?
jonathan180iq is offline  
Reply With Quote
Old 06-23-2012, 02:50 PM   #15
mynameistrey
Junior Member
 
Join Date: Jun 2012
Location: jax fl
Posts: 9
Re: smoking pipes

Quote:
Originally Posted by jonathan180iq
.....that's really interesting.

Where is it located exactly?



Login or Register to Remove Ads
mynameistrey is offline  
Reply With Quote
Old 06-23-2012, 02:58 PM   #16
alantf
Senior Member
 
alantf's Avatar
 
Join Date: Nov 2008
Location: Tenerife (Spain)
Posts: 3,719
Re: smoking pipes

Well, whatever it is, it shouldn't be there, so you might as well fill it.
__________________
By birth an Englishman, by the grace of God a Yorkshireman.
alantf is offline  
Reply With Quote
Old 07-23-2012, 01:47 PM   #17
mynameistrey
Junior Member
 
Join Date: Jun 2012
Location: jax fl
Posts: 9
Re: smoking pipes

Hey so I'm back again and have a new problem. I finally got the bike running well, no smoke, no oil leaks while its on. I finally put my first seafoam free tank of gas in it and it's been cruising better at low speeds. My only problem now is when I go to shut it off, it lets off a big puff of white smoke from the engine. Sometimes it goes kind of ghost mode, I turn it off and it turns over 2 more times before cutting off. It looks as though maybe the carburetor might be loose? But it still backfires really loud on shut off. What might cause one big puff of smoke after shutoff?
mynameistrey is offline  
Reply With Quote
Old 07-23-2012, 02:52 PM   #18
jonathan180iq
Super Moderator
 
jonathan180iq's Avatar
 
Join Date: Jan 2007
Location: Dalton, GA
Posts: 3,996
Re: smoking pipes

That's called dieseling and it's caused by the engine being way too lean. The chamber is so hot that the excess explosive bits get heated enough to blow up again.

It's an issue that you really need to look into. If you have a carb that isn't fully sealed to the manifold, then that is most likely your problem. Too much air would be getting in causing the whole thing to run way too hot.
jonathan180iq is offline  
Reply With Quote
Old 07-26-2012, 12:41 PM   #19
mynameistrey
Junior Member
 
Join Date: Jun 2012
Location: jax fl
Posts: 9
Re: smoking pipes

So it was definitely the carburator. It was just loose. I straightened it back in there and it shuts off easily now. Thanks for the help.
mynameistrey is offline  
Reply With Quote
Reply




Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 06:56 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.