Pops (backfire) with Vance & Hines - Triumph Bobber Forum
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post #1 of 10 (permalink) Old 08-13-2018, 03:51 PM Thread Starter
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Pops (backfire) with Vance & Hines

Is it normal to hear a pop or two on decelleration after I had this new V&H exhaust installed? I also hear sometimes when changing gears if the RPMS are a little higher....or does this mean the engine wasnt tuned correctly. Will this 12 minute tune I am reading about help?
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post #2 of 10 (permalink) Old 08-13-2018, 03:53 PM
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That's one of the bonuses of swapping exhausts, if you get it just right you can get a really good pop and bang on the overrun

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post #3 of 10 (permalink) Old 08-13-2018, 04:04 PM
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A booster plug will probably help with the decel popping and also smooth out the throttle at low speed RPM.
But it’s not anything to worry about. Enjoy the sound!
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post #4 of 10 (permalink) Old 08-13-2018, 05:57 PM
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I have not had that problem and have been running with V&H since Feb 2017. Sorry to hear about your experience.
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post #5 of 10 (permalink) Old 08-14-2018, 01:02 AM
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Eisen77 is completely right with what he wrote.
I had the same behaviour on mine after I installed the Remus exhaust (especially when riding it without the baffles, which I do almost always).
The booster plug fixed it right up and does a great job in general in smoothing out throttle response.

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post #6 of 10 (permalink) Old 08-14-2018, 03:13 AM
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I can't understand why people want to eliminate the popping, it's awesome
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post #7 of 10 (permalink) Old 08-14-2018, 03:41 AM
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When I test rode the Bobber Black with stock exhausts it was just on the verge of popping on the over-run. Which I thought was a rather good thing.
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Honda CBF 500 for when I am being sensible
Triumph Bobber for all other times
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post #8 of 10 (permalink) Old 08-14-2018, 05:09 AM
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Quote:
Originally Posted by Ethariel View Post
That's one of the bonuses of swapping exhausts, if you get it just right you can get a really good pop and bang on the overrun
...so it's not just me then
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post #9 of 10 (permalink) Old 08-14-2018, 01:31 PM
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I could def hear the pops on decel on my BB, but they were fairly muted. They sound much more aggresive now with the BC slash cuts, love it.
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post #10 of 10 (permalink) Old 08-15-2018, 07:13 AM
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I'm only just running my Bobber in but I noticed it's beginning to work towards popping on the over-run. Lovely.

Honda CBF 500 for when I am being sensible
Triumph Bobber for all other times
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