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Discussion Starter · #1 ·
I've got cbr900rr carbs on my mk1 rabbit gti. It's got a 16v swap.

I am currently running 160 mains and 42 pilots. Mixture screws are 4 turns out already and I still idle very lean. 19:1 afr. Its rich everywhere else though. If I give it throttle itll jump to 12:1 and cruising is around 14-15:1 afr. I've cleaned the carbs already and again the jets are brand new.

I tried 190 mains and 42 pilots and still the same issue.

Any ideas?

If this needs moved to another topic please do

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