Question about 2002 Honda CR 125 R

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I have 1982 cr 125, I'm having a hard time starting it I cleaned the carbs changed the filter put new oil in it but it won't start.

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Does it have a spark ? remove plug , place in hand and crank , do you feel it tingle ? if not check cap is ok , remove it and put ht in hand and crank , any joy ? if not then check coil etc ! P...

Posted on Dec 25, 2013


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SOURCE: keihen carb

Honda or husquy cr 125

Posted on Nov 10, 2008

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Use 600 ml is you are changing the oil, or 650ml  if you have just rebuilt the engine and filling from dry. Use light weight gear oil. 
regards robotek

Posted on Dec 20, 2008

  • 74 Answers

SOURCE: oil change

On the right side of the crankcase there is a little see through glass, fill the oil until the you can see the oil in the middle. you must have the bike in a straight up and down posistion.

Posted on Dec 21, 2008

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SOURCE: how much oil should i put in my drz 125 after oil


Posted on Oct 10, 2009

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SOURCE: suzuki gn 125 lacking power

I assume you dumped out the half pint of old gas and rinsed out the tank. Get a new spark plug and clean the air filter. Remove the carb and dis-assemble it then soak the parts in denatured alcohol for 30 minutes. Do not soak the rubber diaphragm. Finish the cleaning with a can of spray carb cleaner from the auto parts store. Be sure all internal fuel and air circuits are clear and that the diaphragm is not torn or has pin holes. The top cap must have a good seal. Go to to see a diagram of the carb and the rest of the bike. It looks like they have lots of parts for your bike.

Posted on Feb 10, 2010

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I just got a 1994 yz 125 and when i was riding it ,.. it would run good as long as i was going slow and not raping out the gears .. but when i would give it a lot of gas to take off it would bog out and...

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Replace the spark plug to new one they rarely come good or be reliable once fouled shouldn't need to clean carb but if were mine I would clean it anyway
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I put new gas, oil and spark plug and cleaned out filters and carb but it still wont run??

do you have a spark ? plug out , put ht on and place on head and crank ! or the qwik test is hold plug in hand and crank ( slowly ) and you should feel small voltage !! honestly !!

May 28, 2011 | 2003 Honda CR 125 R

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Jan 23, 2010 | 2002 Honda CR 125 R

1 Answer


Remove the water trap bowl at the bottom of the petcock, (gas valve). Any water or trash in the bowl? Drain a cup of gas from the tank. Any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the two screws on the outside throat of the carb and spray into the screw holes as well.
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine. Set the idle speed with the idle screw. This process should get you back on the road.

Please rate this solution. Thanks!

Apr 01, 2009 | 2005 Honda CR 125 R

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