[SW600 2007] Échappement qui pétarade à la décélération

singapore bikes a écrit:Quote Originally Posted by SW9000 View Post
Ahh... not so easy to learn and set to the optimum.
I realised that the Honda manual says 'Air Screw', which means it's different from mixture screw:
1. Air screw - turn out (anti-clockwise) = lean mixture.
2. Mixture screw - turn out (anti-clockwise) = rich mixture.

Brain now got stuck thinking how to tune. I can either:
Option1.
1. Leave both screws at 2 turns out and adjust from there. *That was the stock number of turns I got when I 1st meddle with them at 5k. It is also my current setting. Told K & T Ah Jin to keep it near 2 turns during all the tuning.
FC has been 25-26km/L (90-100km/h). Bike very smooth all the way to 130km/h (rpm 7) after that a bit strain. Not sure if the bike is like that (hey, it's only a 400cc) or the setting is a bit lean (since most SW are getting 23-25).
2. I might try 1.75 turns (or even 1.5) and see if got power increase since the mixture would be richer?
3. If no improvement in performance, then I'll fall back to my current setting.

Option2.
1. Adjust 1 screw to the highest reading it can sustain at steady state. ** Some say the highest steady level is the best air/fuel mix.
2. Adjust the other screw to match.
Ehh... This method I got no review. So not sure how true or accurate the adjustment will be.

Anyway, just ordered a Morgan Carbtune Pro to play with. Should be arriving in 1-2 weeks.

louis69 a écrit:les pétarades sont en effet liées à un pb de carburation, de mélange trop riche qui brûle dans le pot.
avec une injection, c'est qd même plus compliqué d'en avoir.. surtout avec la sonde lambda qui régule tout cela..
donc je suis sec sur ton pb. je comprends pas.
tu as bien une injection?

JeffB12 a écrit:

Aucune raison de passer par un powercommander si pot et filtre sont d'origine.

Pour la recherche de prise d'air à l'admission, préférer un pinceau légèrement trempé dans l'essence plutôt que pulvériser.