Question about 2005 Honda NF 100 Wave

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BACK FIRES on my pipe everytime i let go of the throttle. i've clean the carbs had a tune up replace the spark plugs i even tried a new cdi , still is there. Help

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May need valve adjustment

Posted on Dec 30, 2010

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Back fire? sparkplug dude! buy new spark plug

Posted on Jul 16, 2012

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I know it sounds too simple but the aircleaner element is worth checking. Even if it looks only a little grey still replace it. Are the spark plugs fouling?? If so I would do the air filter replacement.

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please check for the sparkplug gap setting and also check the carburetor settings........back fires presisit due to uneven plug gap or uneven carburetor fuel setting>>>>!!1

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Hi,i`ve got a yamaha fz750 1988..and it won`t seem to run on all four cylinders..i took the air box off and while it was running put my hand over each carb one at once and found that on carb 4 it stopped...


Hi JIm,
If it stopped @ 4 tht means thts the only cylinder firing .
Remove the spark plugs,earth @ on the cylinder head, crank start and check for sparks...if its sparking tht means the coils etc. are ok.
As the spark plugs are out exam them to their conditions visit this site for more details :-
http://www.spark-plugs.co.uk/pages/technical/diagnosis.htm

From here you would know if its carburator or probably it may need a complete tune up....carburator cleaning, float level..adjustment, valve clearance.. new plugs (gap to specs.), check air filter, replace or fit 'inline' fuel filter thn balancing of the carbs.
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1 Answer

Was mowing starting cutting out and died wont start back it is flooding with gas.I cleaned the carb didint help


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I have been working on my carb today,the pipe from the bottom of the carb should just run down by the bottom of the swinging arm,there should be another pipe from the pipe on the left side of the carb just above the fuel intake which also runs down to the swinging arm and connect to nothing.
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