Question about 2005 Yamaha TT-R 125 L

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Sumthing is wrong with the carburator

Bikes carburator leaks gas every once and a while and has trouble idleing even with the choke on. every time u give it gas it dies if u dnt let rite off

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  • niteswim Apr 18, 2009

    2008 TTR 125, Wife fell (easy) over to one side, found there was not throttle response, slide would not move, pushed with my finger and it released, but then stuck again. POS carb.. Someone should find a replcement for it and tell the rest of us

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  • 36 Answers

Hi,
to get a good combustion inside the engine, you(engine) needs fuel-air mixture, since it leaks fuel the mixture is too rich on air. Where does the carb leak? maybe it's just the connection that leaks...I mean where the fuel line connects to the carb, If it leaks there it also sucks in extra air instead of fuel, and therefor the engine doesnt run smooth, choke or no choke, that makes no difference. Check that and if it leaks there just change out the fuel line with a new hose.
It could also be the little rubber ring that seals of the carb, If it leaks from the top of the carb...it's the little ring. Take off the top of the carb and check the condition of the ring, if faulty.. replace it with a new one.
Hope this helps....can be pretty dangerous riding around with a leaking carb... Good luck, Gilbert.

Posted on Mar 05, 2009

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1 Answer

Idles with 1/2 choke. If open choke, or throttle - engine dies without any RPM spike. Carb was cleaned, jet is clean. When idles, there is gas in the primer bulb.


Hi, Andrew and the usual suspects are:

1. Fuel cap or fuel tank is not venting properly.

2. Fuel filter clogged.

3. Fuel line pinched or kinked.

4. Float needle and seat sticking.

5. Float level too low.

6. Carburetor bowl vent line clogged/blocked/pinched.

7. Idle adjusting screw set too low.

8. Air/fuel mixture screw set too lean.

9. Idle port, transfer ports, slow air jet clogged.

10. Slow fuel jet clogged.

For more information about your issue and valuable free downloads that you will need please visit the websites below. Good luck and have a nice day.

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Carburator and idle problem


Believe it or not you just said the solution to your own problem manufacturers specs requires for any adjustments to engine idle or other carburator adjustments to be preformed while the engine is idling and at normal operating temp in plain english let the car warm up then make your idle and mixture adjustments if this doesnt solve it i would check the auto choke and make sure it is opening at normal operating temp hope this helps good luck

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If a 2 stroke dirt bike wont idle and the jets are clean what could be wrong


If it is older bike the reeds in the carb could be bad or going. Might what to check out the choke also.

Feb 14, 2016 | Motorcycles

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Runs good idle but when give gas cut off


sounds like a carburation problem to me
(1)
may be your choke is not switching off when you push the lever
and is seized where it joins the carburetor
get some light oil and lubricate the cable and take the choke mechs apart and clean it up then reassemble
(2)
cracked inlet manifold carburetor (connecting pipe)
it sounds like a damaged air filter or a cracked inlet manifold

if it is a cracked manifold
a quick get you home trick is to remove your carburetors
get 4 condoms put the condoms over the inlet manifold
cut holes in the end to refit your carbs
reassemble the bike
to get you home on the way home call in at your local motorcycle spares shop and order some new inlet manifolds

order a new air filter while you are there as well

hope this helps out

ride safe

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1 Answer

2003 yz 250 starts and idles but runs rich and bogs as soon as the throttle is applied


Hi, Anonymous and the usual suspects are:
1. Throttle cables misaligned or misrouted.
2. Damaged or restricted fuel tank venting system.
3. Intake system air leak.
4. Vacuum piston malfunction.
5. Accelerator pump leaking or no output.
6. Plugged bowl vent or overflow.
7. Fuel level in bowl too low.
8. Restricted fuel supply passages.
9. Plugged jets or passages.
10. Worn or damaged needle or needle jet.
11. The enrichner valve not seated or leaking.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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Bike dies when you give it throttle
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http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Mar 19, 2012 | 2003 Yamaha YZ 250

1 Answer

I just bought a 2004 Honda Shadow 600cc that had been sitting for a while. When I pull the choke the engine will idle but as the choke hits the middle the bike dies. also once its running I have to ride...


Sounds like you have a float sticking in your carburetor, is this a single carb or a duel carb? , also gas can go stale and your bike will run like **** if it also has been subjected to tank condensation and water in your gas, that also maybe your problem, I would drain the tank and drain the carb or carbs, and start off with fresh gas and would use 89 octane or better, also pickup some StarTron Enzyme gas treatment, it will stabilize your gas for up to 2 years, and remove the ethanol from your gas, that is a bad for your motor, try it you will never go without it. Good luck, Rick.

Aug 06, 2011 | 2004 Honda VT 600 C Shadow

1 Answer

My suzuki 125 wont start I recharge the batterry and replaced the sparkplug and start during it's on choke but if I return to normal it dies. pls help me


It's a carburated bike. You need to have your carburator cleaned. It's not a difficult job, howver if you are not comfortable with what your doing a shop will charge a half hour or 1 hour o clean it for you on average.

Your carborator mixes your fuel and air. when the bike is at idle it is only getting fuel from the "idle" needle. The smallest needle in the carb. These needles are hollow. As fuel sits in the carburator for a long period of time (over 2 weeks) then the fuel can gum up and clog the neeedle. If it runs when the choke is on but dies when you take it off the choke this is what is happening:

On some bikes a "choke" doesn't actually choke it of fuel, sometimes it actually enrichens it. Your bike is probably set up to open another passage way besides the "idle" needle allowing fuel to go into the engine from another passage. you shut the "choke" off and now it only has the idle needle to get fuel from. If that's clogged the bike dies.

A can of carb clean and a screw driver is usually all you need to clean a carb. But if done wrong you will pay more to have a pro fix it.

Nov 17, 2010 | 1998 Suzuki RG 150 Gamma

1 Answer

I have a 2003 ttr225 I can get the bike to start with the choke on ihave to let it warm up for an extremly long time before I can push in the choke . once the bike is warm and I hit the throttle hard ,...


Sounds like the idle circuit in the carb is restricted. The engine is running on the choke only. When the engine reaches a certain temp the fuelthat does get is more readily burned allowing you to back off the choke. The choke probsbly can't be completely opened? right? Fuel quality is also something to consider Oil content in fuel affects combustion temps and volatility. _good luck_Ned_



Nov 16, 2010 | 2003 Yamaha TT-R 225

1 Answer

Engine just cutting out even while driving


Sounds like misfire.
On this cars common problem is - intake manifold gasket goes bad creating big vacuum leak , what makes fuel mixture very lean and causing misfire and even stalling engine.
Usually gasket goes bad toward rear of the engine.
How to check :
Buy carburator cleaner spray .
Turn engine on and spray cleaner in to intake manifold gasket area , from begining to the end of it.
If engine start choking or picks up the idle speed - it is your problem. Choking indicates big vacuum leak ,
idle increase indicates small vacuum leak.

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3 Answers

2002 honda shadow dies the minute you give it gas only idles if choke is on


my 2001 just had that problem. Take off your air cleaner and look in the carb. There is a plastic venturi there that sticks. it will free up with your finger

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