Exhaust Popping By ellpee (Read 384 times)

[ellpee]

Posting here because it's probably a generic question, not trike-specific. Thrilled to report my 2012 Magnum is starting and running okay for the most part; racking up miles when weather allows, and conversion to electric fuel pump solved a bunch of multi-year woes after I came up with a reasonable mounting bracket solution. I am noticing, however, that when decelerating before a stop I get some minor popping from the exhaust, nothing like backfires just low volume pop pop pop. Is that something there's an adjustment for, or just something to ignore and live with? Nowhere near loud enough that anybody would ever complain about it, but is it potentially harmful to the engine?

[cyborg]

Not a concern,,popping on the over run as its called is "normal" ,,the cause is the older style carbs don't completely shut off air/fuel mixture,,,newer carbs have a fuel shut off valve which chops fuel flow,so this popping doesn't occur,,,the pollution police are at it again!!!!

[ellpee]

Whew!

[cyborg]

One thing did "pop" (sorry for the pun) into my mind tho,,,just check the exhaust flange /head Union,,see if the nuts have backed off a bit