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Posted on Jun 29, 2011

2009 Yamaha V-Star 950 backfires on deceleration

I have a 2009 V-Star 950 that I have recently put on a Vance and Hines slip-on muffler. I am getting regular backfiring at deceleration. My dealer/serviceman tells me there is not a AIS on this model of bike for him to remove to eliminate the backfire. Short of installing Power Commander, he said there is nothing he can do. Any suggestions?

5 Related Answers

Anonymous

  • 2336 Answers
  • Posted on Nov 20, 2008

SOURCE: Question about Vance and Hines quiet baffles

about 3-5db but you must remember db is not a linear scale but logirythmic. basicallyy the baffles will remove the harsh rasp off the pipe and make them deep in sound, when cold they will be as loud as normal but once they have some heat in them they quieten down

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Anonymous

  • 216 Answers
  • Posted on Jan 25, 2009

SOURCE: Vance and Hines

Whenever I have a question about an aftermarket part - I contact the manufacturer, they are very helpful, but to answer your question, In general, if u get the correct part for your model bike, it should mount the same as the OEM part you;re replacing

Anonymous

  • 73 Answers
  • Posted on Mar 14, 2009

SOURCE: just installed vance and hines big shots on my

all three will give you amazing results i have the power commander and it set my maps perfect with long shots an screaming eagle air cleaner on 2003 heritige softail noticeable difference in sound -idling= start up - drivability -and performance even better gas mileage

Anonymous

  • 311 Answers
  • Posted on Jul 10, 2009

SOURCE: Which size Jet Kit for 800 Vulcan Classic?

general rule of thumb is to go up about 10 jet sizes,unfortunately it is a bit of trial and error,and you may have to swap out diferrent sizes to get the bike running right,(jets are quite cheap though)but first step about 10 sizes from standard,your local dealer should be able to tell you what jets are in it and supply replacements,if you change to a hgh flow aftermarket air filter you may have to change jet sizes again as changing the filter may effect the mixture ratio in the carbs,,hope this helps

Anonymous

  • 119 Answers
  • Posted on Oct 20, 2009

SOURCE: 2003 Ultra Classic engine backfire when upshifting

go to basics replace the sparks

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