Question about 2005 Honda NF 100 Wave

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I bought a honda 125 to a friend it runs good but sometimes the spark plug has full of black residue after running and when the time comes it doesnt start, the black smoke when cranking seems to be an indication that the gasoline is not working good mixed with aIR//

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I'm not sure on this bike,,,but if your adding oil to the gas,,i'm assuming it's a 2 cycle,,,, there for,,,,if your getting a heavy build-up of oil on the plug,,,,,, make sure you are using exactely the correct ratio of oil to gas,,,,, read your manual,,it will say the correct ratio,,,,make sure it is 2 cycle,,,,, if it is a 4 cycle,,,what is this alR// ,, you wrote down ?????? if it is a 4 cycle,,,,empty your gas tank,,,,,change your plug,,,,,add nothing to your new gas,,,,,, it should run fine,,,,again,,, i'm confused about this alR// stuff,,,,,, feel free to contact me with any other problems,,,,, i'm sure i can help you JOEL

Posted on Aug 19, 2010

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I have a cr 125 2003 model , my bike was running and starting fine but today it cut out t, the spark plug is firing there is fuel coming threw but it is not firing up ,there apperes to be flooded as the...


HI, IF IT IS FLOODED, TURN OF THE FUEL AND OPEN THE THROTTLE FULLY AND KEEP AT THIS POSITION WITHOUT THE CHOKE,KICK REPEATINGLY AND IT MAY FIRE EVENTUALY,

RREMEMBER THAT THE CHOKE INITIALY FLOODS THE ENGINE FOR COLD STARTING, SO USING THE CHOKE WHEN ALLREADY FLOODED WILL WORSEN THINGS,

YOU COULD PROBABLY REMOVE THE EXHAUST TO DISPENSE THE FUEL QUICKER AND PUT IN A CLEAN PLUG, I WOULD DO THIS BEFORE I STRIP DOWN THE CARB TO SEE IF THE PROBLEM CLEARS, AS THE BIKE WAS PREVIOUSLY RUNNING IT SEEMS ODD TO START MAKING ADDJUSTMENTS

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I just bought a 1988 yamaha xt600 it runs great except sometimes out of the blue it will just start cutting out and backfiring and i scary rattling noise comes from the motor area then after i turn it off...


Hi and welcome to fixya,

Hi and welcome to fixya. The intake manifold should be taken as the last option. Basing from your description of the problem, the most probable case is poor firing. You will need to do a full check on timing, fuel mixture and spark.

Cutting out can be caused by poor fuel. In this case, there might be water on the carburetor reservoir. Drain the carbs. Until the muddy or rusty residue becomes clear. This procedure doesn't require you to open the carbs but if you want to be sure. You can do full carburetor cleaning meaning you clean the jets as well.

The rattling noise can be caused by timing. The timing chain maybe loose or there's a failure of one of cylinders to fire. Since you mentioned it runs fine again, im guessing there's a problem with the spark plug. Make sure you have good plugs. I recommend replacing them all at once to narrow down the problem. Even if the spark plug seem to be fine, the copper core could have been corroded. I recommend replacing it if its more than a year old and have been extensively used.

Make sure you have good fuel and air mixture. It usually is 2.5 to 3.5 turns out from a full close. but if you haven't made changes to it yet, let it be. This will save your plugs from wearing out too soon.

The leaky intake manifold can cause lose of power, and will definitely lean out the mixture. Physically check it to make sure there isn't any cracks or big holes that can let air in.

I hope this info helps.
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Jan 14, 2011 | Yamaha XT 600 E Motorcycles

1 Answer

I just bought a 1988 yamaha xt600 it runs great except sometimes out of the blue it will just start cutting out and backfiring and i scary rattling noise comes from the motor area then after i turn it off...


Hi and welcome to fixya,

Hi and welcome to fixya. The intake manifold should be taken as the last option. Basing from your description of the problem, the most probable case is poor firing. You will need to do a full check on timing, fuel mixture and spark.

Cutting out can be caused by poor fuel. In this case, there might be water on the carburetor reservoir. Drain the carbs. Until the muddy or rusty residue becomes clear. This procedure doesn't require you to open the carbs but if you want to be sure. You can do full carburetor cleaning meaning you clean the jets as well.

The rattling noise can be caused by timing. The timing chain maybe loose or there's a failure of one of cylinders to fire. Since you mentioned it runs fine again, im guessing there's a problem with the spark plug. Make sure you have good plugs. I recommend replacing them all at once to narrow down the problem. Even if the spark plug seem to be fine, the copper core could have been corroded. I recommend replacing it if its more than a year old and have been extensively used.

Make sure you have good fuel and air mixture. It usually is 2.5 to 3.5 turns out from a full close. but if you haven't made changes to it yet, let it be. This will save your plugs from wearing out too soon.

The leaky intake manifold can cause lose of power, and will definitely lean out the mixture. Physically check it to make sure there isn't any cracks or big holes that can let air in.

I hope this info helps.
levibit

Jan 14, 2011 | 1990 Yamaha XT 600 E

1 Answer

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try a new spark plug, if the sparks plugs really black its probably fowled so wont work. That should fix your problem, if not pm me

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Was the bike running fine before you cleaned them? If your bike won't stay running, you might need to adjust your idle. There is a black round dial on the left side next to the stator (big round circular housing) turn it so the fuel is increased.

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1 Answer

This is a 3 wheeler 125 m honda one cyl runs


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1 Answer

Help !


hi m8,, usually if the cdi is playing up u wont have a spark at all,, has the carb been cleaned out, ,,id look at the 1st,, ,clean the jet out ,,and any brown residue,, pull off the plug cap from the spark plug,, ,, then unscrew the cap and just snip a little bit of the ht wire off,, so u see a copper lookin bit of wire pokin out the middle of the black ht wire,, then screw the cap back on,, try this 1st m8,,

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