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af05e bbk carb question
Posted: Wed May 18, 2022 7:09 pm
by rag64
afo5e bbk build with stock stroke crank and malossi 70cc bbk and Leo vince sp3 and ct intake and a 21mm polini pwk carb and at 800' elevation, what is an input for a good jetting starting point for this carb and setup?
Re: af05e bbk carb question
Posted: Wed May 18, 2022 9:13 pm
by Meatball
Burnt Toast is the af05 wizard. See if he replies. I messed with one years ago, got frustrated and scored an af16. Never looked back. Good luck.
Re: af05e bbk carb question
Posted: Thu May 19, 2022 8:41 am
by rag64
okay and thank you
Re: af05e bbk carb question
Posted: Sat May 21, 2022 11:45 am
by Wheelman-111
Greetings:
The Polini (and Malossi...) 47 mm cylinders yield 65cc, not 70. Neither revs high enough without porting to justify a 21mm Carb. 17.5 or 19 is plenty. Amal/Arreche made direct-fit carbs if you still have the stock intake. Otherwise you'll install the Adapter kit from Swap-Shop and I encourage you to consider the 19 mm Polini. Tuning will be a LOT easier.
Re: af05e bbk carb question
Posted: Sat Jul 02, 2022 7:49 pm
by rag64
I did a 21mm before I seen your feedback and its an after market intake and reed block, still having issues dialing in jetting and where needle needs to be