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Why won't my bike run when it gets warmed up?

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Try checking the choke to see if it is sticking. Add a bottle of carburetor cleaner to the gas and see if you can free up the internal workings of the carburetor and possibly clean it. You could have a clogged jet. Depending on how old your bike is and how bad the gas you have been running in it, your fuel filter could also be clogged. If the fuel filter is full of gunk, drain your tank, replace the fuel filter and fill the tank with clean gas.

Posted on May 02, 2015

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1 Answer

Only runs with choke on


Hi, Jeff 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 ***** set too low.
8. Air/fuel mixture ***** 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 Click on the links below. Good luck and have a nice day.
What could be wrong if bike will only run on choke
Only Runs When Choke is On
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Oakys Garage Carb clean Pilot Jet clogged Won run without Choke Carbs 101

Apr 05, 2016 | Red Motorcycles

1 Answer

Why wont my bike start when it gets hot ?....


Hi, Stacey and the usual suspects are:
1. Faulty ignition coil.
2. Faulty spark plug cables.
3. Faulty temperature sensor.
4. Faulty starter motor.
5. Valves adjusted too tight.
6. Spark plug gap too wide.
7. Fuel has vapor lock.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
bike wont start when hot SOLVED
Bike won start when engine is warm
1985 2000 Honda XR600R Dirt Bike Service Manual Moto Data Project
http://www.partsfish.com/page/oem-parts-for-honda
http://hondampe.com.au/docs/owning_a_honda/owners_manuals/motorcycles/XR600R-1985.pdf

May 31, 2014 | 1985 Honda XR 600 R

1 Answer

Misfires and interrupted idle in low rpm


sounds like you have a vacuum leak
check manifold gasket, any vacuum lines to carby or vent hole for the tankcap

Mar 03, 2017 | Motorcycles

1 Answer

Misfires and interrupted idle in low rpm under 3000 rpm


HAVE YOU TRIED PULLING THE GAS TANK AND CLEANING IT AND CHECK THE PETCOCK VALVE AND THE FUEL FILTER

Apr 18, 2013 | Yamaha XV 535 Virago DX Motorcycles

1 Answer

Why won't 1981 suzuki gs 550 bike won't start after riding it and it's warmed up?


hi
glad i served a long time with wisco and used drag raced for them at one time
sounds to me that your ignition is to far retarded
which means the ignition will spark closer to (TDC)
top dead center
some people advanced the ignition 3 deg to stop the engine from smoking when they did away with 4 star fuel
and gave us unleaded fuel
doing this the performance is great and fast acceleration
but it also make the engine run hotter than normal
unless you have up jetted the carbs
and fitted a non standard exhaust system
the whole idea is get the fuel/air mixture in and out as fast as possible

if you still have points
take your points cover off and adjust your points baseplate
undo the three screws that hold it in place
and just move it about 3 deg towards the rear of the engine
or may be you have a electronic ignition fitted
if so do the same thing
and advance the ignition 3 deg

hope this works for you

ride safe

Sep 18, 2017 | 1982 Suzuki Gs 550 L

1 Answer

1985 Honda shadow vt500c how to replace front turn signal stem, after engine gets hot and you shut bike off try to restart bike won't start, also I have a noise sounds like coming from water pump


Hi, Luther the answer to all those questions is way above my pay grade for this situation, I would call or visit my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry.
Good luck and have a wonderful day.

Jun 21, 2017 | 1984 Honda VT 500 C Shadow

1 Answer

Buell blast won't start


You have a bad switch somewhere - either the clutch switch in the clutch lever or the kickstand switch is bad. Of course I had a blast that had a sloppy connector at the back of the key switch that did all of the above too.

Apr 03, 2012 | 2001 Buell Blast

1 Answer

2008 dyna wide glide won't hold idel speed after 15 minutes of running. Changed spark plugs, good for 2 days then same problem back. Bad gasoline?


If the bike is equipped with a carburetor, try not using the enricher (choke) so long. The enricher circuit in the carburetor is extremely rich. I see people let their bikes run for almost ten minutes with the enricher on and they can't figure out why they are fouling plugs. Only run the enricher until you can get the engine to run with the throttle. I use the throttle lock located on the underside of the throttle grip. Just idle the engine up that about 1500-1700 RPM, turn the enricher off, and tighten the little knob just enough to hold the throttle and keep the engine running until it warms up. Prevents you from fouling plugs. If this is not the case or you have fuel injection on your bike, you may need to take it to a qualified mechanic. I don't advise tearing into your carb or fuel injection unless you know what you're doing.

Good Luck
Steve

Jul 20, 2011 | Harley Davidson FXDWG Dyna Wide Glide...

1 Answer

2001 vmax My throttle has alot of play in it, which I can adjust, but when I get the bike warm, it won't stay at an idle. The idle will creep up to about 2500 rpm. Almost like the throttle cable...


Try lubing your cables and throttle mechanism first. Do your adjustment when the bike is warm. It sounds like you're making one of the cables too tight.

Jun 27, 2011 | 2001 Yamaha V-Max

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

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