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FX450 backfire

Joined Mar 2014
18 Posts | 0+
UK, ESSEX
Hi Guys,
Got a question, my 2010 berg sometimes likes to pop from the exhaust, most of the time it does it when engine is nice and warm, it does it when I ride it and roll in gear with throttle shut for about 20-50 meters and then sometimes when I open the throttle or even without it just backfires, it did backfire in the intake once so bad that engine went off.
Exhaust is standard, filter is just normal pre oiled putoline/twinair filter, apart from that bike runs fine, loads of power all the time.
I also noticed that it does not start as good as my old 550 berg, sometimes I have to hold the starter for 5 secs twice to get it going when cold.
Thanks for help.
Andy
 
Get a plug to check the throttle position sensor most bikes run better with it set higher. Search for videos online lots of info posted
 

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