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Sputters alot on takeoff and running down the road,full throttle

1988 YAMAHA FZR 1000
"When driving down the road or from take off, if i give it all throttle it boggs down, sputters alot? Any help!"

1 Answer

Anonymous

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Posted on Apr 09, 2010

Anonymous

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Hi and welcome to FixYa,

Initially, inspect the burn colors of the sparkplugs. If they are very light in color, then it would indicate a lean mix

Offhand, a lean mix andsputtering would both indicate an air leak; too much air, too little fuel. Either or both could be caused by a torn or out of position air filter or the air box not properly sealed. Aftermarket free air breathers/filters such as those by K & N and/or non-stock exhaust could also cause this if the carbs were not re-jetted. In some instances, the needle height might require adjustment.

Good luck and thank you for asking FixYa.

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