Re: Bore stroke porting and displacement

Probably Fred /
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> Brad William Wrote:

> -------------------------------------------------------

> How can the bings still be used with kits and aftermarket pipes? The

> only adjustments to such a wide range of demands imposed, beyond the

> very specific ones the oem bings were designed for, are needle slots

> and intake restrictors. Isnt any attempt to match them with different

> cylinders and pipes just badly limited from the start?

I get 56-57 mph with 64cc polini reed kit, on a e50, horrible case match, 15mm bing, 90 jet, 217 atomizer, one clip heavy on needle, 14.5° BTDC timing and cheep estroil pipe

I’ve hit 62 mph with better mlm pipe

Bings rule but-so does mikuni, dellorto and other carbs once tuned !

Be off a fraction in jetting and your bike will be a dog but be tuned perfect and you got a small motorcycle

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