Question about 2003 Yamaha WR 250 F

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2004 w 250 will not run unless the choke is on. Cleaned all the jets

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  • Yamaha Master
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Carb needs pro cleanin or rebuild--getta clymer manual--happy ny

Posted on Jan 01, 2013

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Posted on Jan 02, 2017

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SOURCE: Hi I've gota DTR 125 54 model Bike was rev high

i got the same problem with my dt 125, it got high rev even if i pull the spark plug cap free from the spark plug it keeps on reeving, it will just stop if i pull the choke on, any smart ideas please? im all out of it,

Posted on Feb 25, 2010

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1 Answer

Farmall Super A, rebuilt carburator, cleaned tank and lines but will not run smoothly unless choke is pulled out at least 3/4. Any suggestions?


You have an obstruction in the main jet circuit of your carburetor. That is why you need to choke it - give it gas.

Nov 23, 2015 | Farmall Garden

1 Answer

How do you adjust idle. Mine will not idle unless choke is on.


Your main jet is carb is clogged and needs to be cleaned out so idle circuit will work without the choke.

Nov 10, 2015 | Honda Motorcycles

1 Answer

Engine won't run unless choke is partially closed.


when the choke is partially closed there is extra vacuum created in the venturi of the carby that assists to help pull the fuel through the main jet and the idle circuit
it indicates that the main jet circuit still has a blockage or there is insufficient fuel getting to the carby ( vent problem)
it could be from a gasket or diaphragm blocking a vacuum port or the fibre block under the carby incorrectly fitted

Aug 14, 2015 | Garden

2 Answers

Just had carb rebuilt. Fired it up and will not run unless choke is partially on and it back fires


then whoever rebuilt it can not have cleaned the pilot jet out properly or has fitted too small a jet in it.

May 08, 2015 | Motorcycles

1 Answer

Choke has to be out to stay running, yet it speeds up on its own or dies


Sounds like the carb's need cleaned. If the jets are plugged partly off it can't get enough fuel unless the choke is on. Normally if the choke is on the engine will run a little faster, at least until it is warmed up.

Sep 28, 2014 | Motorcycles

1 Answer

I have cleaned the gas tank, fuel lines and rebuilt the carb. It now runs but just at idle almost in the choke position. I have played with the throttle and it wants to die when I move it to normal ru


if it runs only in choke it sounds like its lean (choke reduces airflow and gets back to a mixture it will run on.....just). It could just be a small bit of crud in the carby jet. You cleaned the fuel system.....did you install or replace a fuel filter? sometimes cleaning the tank and lines stirs up stuff that needs to be filtered.....even though you may had cleaned and rinsed out a lot.

Nov 22, 2013 | Electrical Supplies

1 Answer

Artic Cat AC 4000GD2E Generator will not run without choke on.


Have you cleaned your carb? Sounds like clogged jet. what does it do at high idle?

Sep 12, 2012 | Motorcycles

1 Answer

2001 Shadow Sabre, Won't idle with choke off unless giving it some throttle.


Hi, Rickgilbreat 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. Vacuum line from the petcock to intake manifold cracked.
5. Float needle and seat sticking.
6. Float level too low.
7. Carburetor bowl vent line clogged/blocked/pinched.
8. Idle adjusting screw set too low.
9. Air/fuel mixture screw set too lean.
10. Idle port, transfer ports, slow air jet clogged.
11. Slow fuel jet clogged.
12. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the blue links below. Good luck and have a wonderful day.
Starts but won stay running unless with choke Discussion
Won idle without choke
Honda shadow vt1100 Owners Workshop Manual
http://www.partsfish.com/page/oem-parts-for-honda
Honda VT1100C2 Owner Manual Page 3

Aug 23, 2012 | 2001 Honda VT 1100 C2 Shadow Sabre

1 Answer

The bike will not run good unless the choke is on. cleaned the carbs and everything look good.


It's running lean.Soak your jets in Sea Foam for a couple hours and check your intake boots for cracks/leaks.

Oct 14, 2010 | 1984 Honda CB 700 SC Nighthawk

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