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what's a good a/f ratio

973 Views 5 Replies 4 Participants Last post by  556KingR
I'll installing a hrc kit soon and I'll be tuning the bike myself. It's and 06 any help would be great
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nothing at all
I think 13:1 is a good start. Then make small adjustments depending on how it is running.
There is no perfect A/F ratio. Your engine might like 13:1 whereas mine likes 14:1. You can't know this unless you put it on a dyno with an A/F meter so they can see how different ratios affect your HP numbers. A good tuner will tune to highest HP and not to a specific A/F, IMO.
There is no perfect A/F ratio. Your engine might like 13:1 whereas mine likes 14:1. You can't know this unless you put it on a dyno with an A/F meter so they can see how different ratios affect your HP numbers. A good tuner will tune to highest HP and not to a specific A/F, IMO.[/b]
i got a wideband but yes you right, leaner is meaner but then to lean will cause detonation and break stuff
This is another question that should be asked in the engine section, not the dyno section. People really should stop asking questions about engine tuning in the dyno area.......

13.7 in the theoretical number your looking for.
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