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Old 03-16-2012, 08:39 AM   #21
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I used a 3mm t-handle to tighten but still drips. I never even touched the carb when adjusting the valves, weird.
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Old 03-16-2012, 08:48 AM   #22
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is your float stuck and overflowing fuel?
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Old 03-16-2012, 08:58 AM   #23
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I don't know anything about carbs. I just know that even with the fuel valve closed the fuel slowly drips from the carb. When valve is open therer is a steady drip.
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Old 03-16-2012, 09:02 AM   #24
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let me find a screwdriver and look at some things. I have a carb here at my desk.

it is leaking from the red arrow though, correct?
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Old 03-16-2012, 09:05 AM   #25
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Correct
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Old 03-16-2012, 09:16 AM   #26
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I should adjust my valves. Oh wait I don't have any!
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Old 03-16-2012, 09:20 AM   #27
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Quote:
Originally Posted by dhdrider View Post
I should adjust my valves. Oh wait I don't have any!
That's soooo wrong But like I said, what does me only adjusting the valves have anything to do with why my carb is leaking when I put it back together
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Old 03-16-2012, 09:21 AM   #28
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For your carb issue:

It's likely that the float valve is not sealing correctly when engaged. When the fuel flows into the float bowl the float rises, pushing the connected needle valve upwards seating/sealing it from allowing more gas to flow. Normally it's one o-ring that's the culprit. it's probably around $15 for a new float valve/ o-ring and easy to replace.


You can also troubleshoot this without taking the carb off of the bike by shutting of the gas flow from the petcock, loosening the clamps on both sides of the carb and tilting the carb in place so the bottom of the carb/ float bowl is visible and accessable. Remove the float bowl and tilt the carb back into the upright normal position. (get ready to make a small mess) Turn the gas flow back on, gas will flow through the carb into where the float bowl would be. With your finger, press up on the float. This SHOULD completely stop the gas flow. If it's still leaking, you need to replace that float needle valve and o-ring(s) because they are worn and no good.
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Old 03-16-2012, 09:24 AM   #29
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Also, is gas leaking out of the tube connected to the carb next to that screw or is gas leaking from the screw itself?
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fkn kdogg just started staring at me like i'm bout to jump off this bike and murder some dave c. i was thinkin ok lets see what i did to this man to make him hate me and how fast can i run
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Old 03-16-2012, 09:27 AM   #30
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lol Jason. Whoever said 2-strokes were more maintenance probably has a hard time mixing oil and gas.

Ok, this is a carb off my RMZ 250, so it might not be the same. I believe yours is a FCR carb though, so it should be similar.

The Leak:
1. The drain passage (GREEN ARROW) around the bolt that you tightened is leaking. Probably not the case.
2. The float (valve) is stuck open, overflowing your carb with fuel, and it drains out of the overflow tube (YELLOW ARROW).

IMG 1340 1 1

I've heard of people having good luck unsticking a carb bowl simply by:
* running seafoam in their fuel
* filling the bowl with only seafoam and letting soak for a while
* tapping on the outside of the bottom of the carb
* opening the carb and cleaning the area around the float (might as well clean the carb).

Last edited by hotnanas; 03-16-2012 at 09:32 AM.
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Old 03-16-2012, 09:33 AM   #31
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Quote:
Originally Posted by kdog22 View Post
Also, is gas leaking out of the tube connected to the carb next to that screw or is gas leaking from the screw itself?
Red arrow
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Old 03-16-2012, 09:37 AM   #32
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Quote:
Originally Posted by brentkhack View Post
Red arrow
Yeah, see my post above. That's probably it.
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fkn kdogg just started staring at me like i'm bout to jump off this bike and murder some dave c. i was thinkin ok lets see what i did to this man to make him hate me and how fast can i run
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Old 03-16-2012, 09:38 AM   #33
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Before delivery of the bike, the dealership said they did clean the carb because it was taking a few more kicks to start the bike because it was sitting there for awhile.
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Old 03-16-2012, 09:46 AM   #34
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When I get home, I will tap the sides of the carb. I am looking at the service manual and I do not see a part number for the o ring or needle valve. Would that o ring be the one from this pic?
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Old 03-16-2012, 09:53 AM   #35
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http://www.suzukipartshouse.com/?gcl...03/56022160010


Take a look at that. Based on that parts diagram it's hard to tell if there is an o-ring. Number 25 is the valve i'm talking about. If that valve is not seating/ sealing, gas will leak from the overflow tube.
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Muhammad.........Nostradamus..........Kdog
The cycle continues.
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Old 03-16-2012, 10:04 AM   #36
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..

Last edited by hotnanas; 03-16-2012 at 10:06 AM.
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Old 03-16-2012, 10:08 AM   #37
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..
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Quote:
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fkn kdogg just started staring at me like i'm bout to jump off this bike and murder some dave c. i was thinkin ok lets see what i did to this man to make him hate me and how fast can i run
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Muhammad.........Nostradamus..........Kdog
The cycle continues.
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Old 03-16-2012, 10:17 AM   #38
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I am starting to understand this problem. But how does a needle float valve "go bad". Looks like a piece of metal that goes up and down. Would you also replace #28 from the link provided above?
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Old 03-16-2012, 10:21 AM   #39
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honestly, a good cleaning of the bowl and the valve will probably solve the problem. i've had stuck float valves where I just rode the bike and the gas or bumps dislodged the float.

it could be that the bowl is dirty, with gummy gas. before you go buying parts, look at it first and figure out the problem.

lets go ride soon!
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Old 03-16-2012, 10:24 AM   #40
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Quote:
Originally Posted by brentkhack View Post
I am starting to understand this problem. But how does a needle float valve "go bad". Looks like a piece of metal that goes up and down. Would you also replace #28 from the link provided above?
No you shouldn't need to replace that unless you take the float bowl off and rip or tear that o-ring.

That valve is mostly metal but there are rubber sealing surfaces on it that can wear to the point of not being able to completely seal. Since gas is "dripping", that means it's likely starting to go bad. I just replaced that same thing on my yz125 carb because it was worn BAD. Gas was almost "" out of that overflow tube..

I replaced that valve (mine also had an o-ring, yours may not) and the problem was solved.
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fkn kdogg just started staring at me like i'm bout to jump off this bike and murder some dave c. i was thinkin ok lets see what i did to this man to make him hate me and how fast can i run
Quote:
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Muhammad.........Nostradamus..........Kdog
The cycle continues.
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