Lots of POP

[Anonymous]

Hey Gents, Why do I get so much backfiring during deceleration? I have a V/H 4into one but I don't remember so much backfiring. It runs good otherwise. Got any ideas?
Thanks,
Jim :x

[KGB]

Jetting is a little off, on the rich side.
Mine does the same thing and has for years.....no big deal
Sounds like the "old" superbike.
And I like it

[Anonymous]

Timing?

What do you think about timing? Can it be played with? How do you check the timing?

[Hoomgar]

Like Keith said, just a little rich. Same affect you would get turning the kill switch off for a second and then back on while riding. Fuel builds up in the pipe and when it ignites, POP!

If it is excessive you may want to look into have it leaned out just a bit.