Rich vs Lean Backfire? - Wrist Twisters
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post #1 of 2 Old 06-28-2015, 09:15 PM Thread Starter
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Rich vs Lean Backfire?

New Stage 3 kit installed on my 02 Bandit 1200 with pods and a shorty open can. Anyway when I put it all together, I set my air screws to 3 turns out. First test ride it consistently backfired on downshifts loud. Went home let her cool off, turned it a half turn now at 3.5 turns out. Test rode it and it rode alot better but would backfire loud maybe once or twice on my whole 10 mile ride when Id close the throttle. Got home turned them out now to 3.75 turns out. Now in low rpms it feels kinda sluggish and stumbly. Also when its cold and I started it at 3.5 and 3.75 turns out it didnt need any choke, and if I did use choke it would lope and die. Should I just go back in the carbs and drop the clips a notch on the needle or....

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post #2 of 2 Old 06-28-2015, 09:43 PM
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More backfire = too lean (some good info here), but a bit of a backfire doesn't necessarily mean you are running too lean.

What manufacturer is your Stage 3 kit, I'm assuming Dynojet? They can probably tell you what the best setting to run is at your elevation, just send them a support email/contact thingie.

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