Help: Decel Popping
#1
Help: Decel Popping
Hey guys.. I rejetted my bike,put on a HMF pipe, and removed the airbox lid.
Now I have annoying decel pops..
I am running 128 jet and 3rd notch..
Will moving the needle to 4th notch help?
Now I have annoying decel pops..
I am running 128 jet and 3rd notch..
Will moving the needle to 4th notch help?
#2
Deceleration Popping explained
#3
You might try a quarter to a half turn out on the pilot screw. Also try this with the lid on but the snorkle removed. Just to see if it helps or hurts then you might have an idea how to or if it needs fruther jetting.
#4
Like TNC says (and this dude knows what he is talking about), a 4 stroke thumper will always decel pop somewhat with aftermarket exhaust.
#5
I just finished my re-rejetting this afternoon/evening (90 degrees F @ 1600ft) and the road performance came out pretty good. There is a little bit of deceleration lean popping but as long as it doesn't sound like WWIII back there I'm not too concerned...
#6
To make sure you are talking about the same thing, when you say 3rd notch, you mean from the blunt end ( top as it sits in the bike ) and not the needle end, right?
I started out in the 2nd clip from the top, ran great. Went to the 3rd clip, started popping a bit, even tried the 4th, and then it really popped.
Every bike is a little different so just start playing with it. You can change the needle clips without removing the carb. Takes maybe 20-30 minutes each time.
#7
With my pipe, both stock and big bore setups, I was able to tune all the popping out of my bike. Bike runs fantastic, even when hot or cold. It takes a lot of work and trial and error, but it can be done.
In saying that though, a little popping isn't a bad thing.
#8
sounds acccuarate to me.. dont think ive heard a bike with a nice exhaust and jetting that doesnt pop.