Question about 1974 Honda CB 100

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Motorcycle honda cg 110 will not run without choke on

Have replaced manifold gaskets cleaned main jet fuel flow & flot leave all seem ok.Bike has 20,000ks on clock,motor sonds great.

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  • mohowe Feb 25, 2009

    This did not fix it anyother suggestions

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Check for good spark etc...

Posted on Apr 13, 2009

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Make sure you have air filter. raise the needle some so you get more gas.

Posted on Feb 24, 2009

  • papito323 Feb 26, 2009

    have you check valves and compression

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1 Answer

2007 Honda shadow spirit 1100. Has set up for 6 months and will fire but will not idle without choke on full.


Failure to idle (or even start/ run) without the choke is indicative of dirty carb(s), partially clogged slow jet. Leaving a bike to sit with un-stabilized fuel is inviting problems, ethanol is the culprit.

Nov 23, 2014 | Honda Motorcycles

1 Answer

Clean 1992 kawasaki zx11 carb


Sounds like the bike is struggling with being too lean.
The choke richens the mixture by increasing the fuel to air ratio
Often these old carbs get worn out and allow air in without going via the air box.
However I would look over the bike and ensure all cables and things are working properly. Ensure all gaskets, gromets and surfaces are seated properly.
Lastly cleaning the carb jets will ensure there are no blockages restricting fuel flow

Jun 30, 2012 | 1992 kawasaki ZZR 1100

1 Answer

2004 300EX honda wont run without choke on.Cleaned carb bowl and fuel tank but still as soon as choke is taken off it stalls.It also back fires through the exhaust.


Hi, most probably you must clean the main jet on your carburator . When you use choke you are inceasing the petrol ratio in the fuel mix by reduciing air ; and you need that because the main jet does not alow petrol to flow
good luck

Sep 14, 2011 | Honda HUnter Softail SLD003 Motorcycles

1 Answer

Only runs with full choke, I bought the bike last week and the float needle was stuck and I think it had bad gas. so I changed the gas, cleaned the carb, reset the float needle. I also set the main slide...


Hi mate reverse the needle clip position back to factory setting this issue is pilot circuit for sure - If you have cleaned carbi you need to replace or clean the pilot jet and compress air clean the hole where the pilot jet came out of to clear the circuit. Running only with choke on is classic symptom of block pilot circuit...
Also check you fuel air mix screw this may have been altered trying to correct this issue it should be 1.5 - 2.5 turns out from fully closed..
all the change of needle position clip is doing is allowing your bike to run off the main jet (not good)
and reason for running with choke on is it is changes air fuel mix with choke on compensating for lack of fuel from the pilot jet blockage
regards Jamie

Aug 07, 2011 | 2004 Honda CRF 150 F

1 Answer

My 05 VTX 1300R just sat and was only ran 1 time in almost 2 years w/ Stabil in the gas.It ran fine last time I rode it, fall of 2009. Statred today and acts like it is starving for fuel, will not idle off...


Recheck fuel flow wth float bowl removed allow floats to hang free. And fuel will flow out, remove float needle check for sticking in seating, remove secondary jet and clean with fine wire to remove fuel contamination,also main jet, if all else fails find a used carburettor to replace old one

May 01, 2011 | 2005 Honda VTX 1300 R

1 Answer

The bike won't stay cranked unless the chock is engaged. I need to clean out the carborator but need directions/instructions on how to do this. Diagram would help greatly.


http://www.bikebandit.com/houseofmotorcycles/2004-honda-motorcycle-crf150f/o/m2255#sch304256

Here is a schematic of a carburetor. All you need to remove is the bowl at the bottom to access the jets. The choke richens the air/fuel mixture and makes it easier to start, however under normal conditions you will foul plugs out by leaving the choke on. If your bike is running right with the choke engaged, and shutting off when not choking, then your air fuel mix is too lean. = not enough gas. You are right in wanting to clean the jets. Hope the schematic helps.

Dec 08, 2010 | Honda VT 750 Shadow Aero Motorcycles

1 Answer

Honda CG125 stalls when choke closed


Hi mate, what you want to do is take a dump in the petrol tank. This usually cleans the carb out with your **** and works surprisingly well.

Mar 30, 2010 | 2000 Honda CG 125 Cargo

1 Answer

1450 carb will not idle without choke on. cuts


If the bike has been allowed to sit for a while, the fuel may have evaporated in the float bowl. When this happens, the jets get stopped up with the gummy residue that is left behind. You may need to go through the carb and clean the slow jet and the main jet. While you're there, it would be advisable to install a new set of intake gaskets.

Feb 14, 2010 | 2001 Harley Davidson FXDXT Dyna Super...

3 Answers

Backfire and popping after installing vance & hines longshots


Let me know via baxr09@yahoo.com.au if you get a solution, Mine is doing similar but mine is holding back at half throttle to, Wont rev high at all just chokes under load

Apr 17, 2009 | 1999 Honda VT 1100 C3 Shadow Aero

1 Answer

Engine only runs with choke on


dear honda 750 your problem is a pluged main jet you must completley disasseble the carbs and give them a good cleaning with carb cleaner and comp air visually check to make sure you can see light through the jets after cleaning. your choke system by passes the jets that is why it runs on the choke setting only. hope this helps jim

Apr 12, 2009 | 1998 Honda VF 750 C Magna

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