Rear carb wont take fuel
Thread Starter
Junior Member
Squid
Joined: Jun 2015
Posts: 9
Rear carb wont take fuel
My rear carb seems to be clogged, If i run the bike with just fuel in the lines it only runs the front carb fuel line dry. Do the sliders have anything to do with the carbs taking fuel? because when I pulled that black cap off the spring was all not where it was supposed to be. Also the bike sounds like its running off both cylinders, theirs just a serious lack of power. Its not the petcock or the vacuum line unless there's one somewhere I don't know about. I really dont want to pull these carbs off, I am many things but a carb guy I am not. Help me please I wanna ride lol
Senior Member
SuperBike
Joined: Feb 2007
Posts: 1,252
From: boston
First of all I dont know exactly what you mean by the spring is not where its supposed to be... theres nowhere for it to go other than its home lol
Second, chech the vacuum lines mounted on the carbs themselves, they are tucked in tight against the carbs.
These carbs are very simple to work on, theres not much too 'em, I would remove the float bowl covers, make sure the float pins arent stuck and pulle all the jets so you can inspect them and clean them if need be... at that point you might as well disassemble them and thoroughly clean them but thats probably not necessary, my self diagnosed OCD wouldnt allow me to go half way lol...
But like I said, these carbs are extremely simple, the hardest part about working on these is getting that cover back on that you removed with the spring not popping out and fully seating the diaphram seal
Second, chech the vacuum lines mounted on the carbs themselves, they are tucked in tight against the carbs.
These carbs are very simple to work on, theres not much too 'em, I would remove the float bowl covers, make sure the float pins arent stuck and pulle all the jets so you can inspect them and clean them if need be... at that point you might as well disassemble them and thoroughly clean them but thats probably not necessary, my self diagnosed OCD wouldnt allow me to go half way lol...
But like I said, these carbs are extremely simple, the hardest part about working on these is getting that cover back on that you removed with the spring not popping out and fully seating the diaphram seal
That one guy
Back Marker
Joined: Jun 2015
Posts: 228
From: Broken Arrow
First of all I dont know exactly what you mean by the spring is not where its supposed to be... theres nowhere for it to go other than its home lol
Second, chech the vacuum lines mounted on the carbs themselves, they are tucked in tight against the carbs.
These carbs are very simple to work on, theres not much too 'em, I would remove the float bowl covers, make sure the float pins arent stuck and pulle all the jets so you can inspect them and clean them if need be... at that point you might as well disassemble them and thoroughly clean them but thats probably not necessary, my self diagnosed OCD wouldnt allow me to go half way lol...
But like I said, these carbs are extremely simple, the hardest part about working on these is getting that cover back on that you removed with the spring not popping out and fully seating the diaphram seal
Second, chech the vacuum lines mounted on the carbs themselves, they are tucked in tight against the carbs.
These carbs are very simple to work on, theres not much too 'em, I would remove the float bowl covers, make sure the float pins arent stuck and pulle all the jets so you can inspect them and clean them if need be... at that point you might as well disassemble them and thoroughly clean them but thats probably not necessary, my self diagnosed OCD wouldnt allow me to go half way lol...
But like I said, these carbs are extremely simple, the hardest part about working on these is getting that cover back on that you removed with the spring not popping out and fully seating the diaphram seal
Banned
MotoGP
Joined: Aug 2007
Posts: 5,942
From: Lake View Terrace, CA
If you removed the top and the slide spring came out you are going to have to pull the carbs to get it all put back together correctly.
It is a bit of a trick to get the diaphragm to seat correctly and the spring installed.
On the bike it would be a tough job.
To check push up on the slide and let go.
Does it just drop closed? If so it is assembled incorrectly.
If the closes in a controlled manner and you hear air moving, then it is correct.
It is a bit of a trick to get the diaphragm to seat correctly and the spring installed.
On the bike it would be a tough job.
To check push up on the slide and let go.
Does it just drop closed? If so it is assembled incorrectly.
If the closes in a controlled manner and you hear air moving, then it is correct.
Senior Member
Superstock
Joined: Mar 2015
Posts: 409
From: Central CA
Are you sure you are not a victim of ?? what's the acronym again?
When the vacuum line is not on the correct tube to the diaphram.
What conditions, or changes led up the bad running condition?
When the vacuum line is not on the correct tube to the diaphram.
What conditions, or changes led up the bad running condition?
Senior Member
SuperBike
Joined: Feb 2007
Posts: 1,252
From: boston
PVLIR? I dont think so, from the sounds of it the carbs are getting fuel to them but something is stopping the rear to dispense fuel into the cylinder... to me sounds like a clogged jet, but Im not there Im just going on his first post
That one guy
Back Marker
Joined: Jun 2015
Posts: 228
From: Broken Arrow
Then go to the second post on this thread and read the part about tearing into the carbs. If you are getting fuel to the carb but nothing below it then the carb is blocked. More then likely the carb is just partially blocked maybe in the float, jet or needle valve.
If it wasn't receiving any gas to the rear the bike would not run.
If it wasn't receiving any gas to the rear the bike would not run.
Thread Starter
Junior Member
Squid
Joined: Jun 2015
Posts: 9
The bike runs, fires right up, I bought it somewhat torn down, the tank was off. So I have done all the things a normal good mechanic would do. flush tank, plugs fluids a good cleaning all that happy horse ****. But yes the bike runs, you can ride it, it just has about the power of a 250 ninja
That one guy
Back Marker
Joined: Jun 2015
Posts: 228
From: Broken Arrow
No fuel consumption mean no fire. The bike fires according to the OP . He's getting fuel to the rear just not enough for a smooth run. No fuel the second piston wouldn't fire to push the front back up to sustain a running condition no matter how cappy thst condition is.
OP tells me something is restricted. We need more info.
OP tells me something is restricted. We need more info.
Thread
Thread Starter
Forum
Replies
Last Post
