Thread: It's D Day!
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Old 11th July 2019
Tomcatt Tomcatt is offline
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Do the roll off test. Start in 3rd gear @ ~3,000 rpm. Go full throttle to ~5,000 rpm and kinda gently roll off the throttle a bit, down to ~ 7/8 throttle. If the engine picks up as you roll off you're lean. Put in a bigger main and repeat. If you get a slight hesitation or stagger you're rich, go to a smaller main and repeat. If it feels like you just closed the throttle a bit you're just right. It's a pretty accurate test. Ya develop a feel for it.
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