Polini CP 17.5 Guidance on Puch Polini 64cc

Michael Jones /
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Hi everyone. I'm fixing up my old Puch with one of these newish Polini carbs. So, I haven't found much on the tuning spreadsheets.

Out of the box the carb comes with an 80 main jet and seems to run lean. I don't know the current idle jet, but I believe it is also lean. I have ordered a range of OKO idle and main jets.

1978 Maxi Luxe

Polini 43.5 mm cylinder from 2008ish. Stock head. NGK B6HS

Polini single Reed valve

MLM 19mm intake

Polini CP17.5mm carb

Uni filter hacked and strapped

Tecno Circuit Exhaust

-Any jetting experience with this carb? Planning to jump up to around 100 and work down.

-larger jets are in the mail, but I am wondering if the minimal filter and lack of airbox are a potential issue. I believe the airbox slows the acceleration in airflow to reduce a lean bog when opening the throttle.

I'm looking for acceleration and reliability over top end. My odometer reads 7,800 miles, I probably put on a few thousand ten years ago, but it has been sitting since.

I just rebuilt everything from the base gasket up. Any thoughts on when the bottom end will become trouble? 10,000 RPM? 10,000 miles?

I appreciate recommendations and will update as the build wraps up.

P.S. looking for moped people in Long Beach, CA

IMG_20210829_101733.jpg
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Subject Written By Posted
  Polini CP 17.5 Guidance on Puch Polini 64ccTopic by: Michael Jones Michael Jones 09/02/21 01:18AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: baird co baird co 09/02/21 12:08PM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: tom wizard tom wizard 09/02/21 05:19PM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: First Name Last Name First Name Last Name 09/05/21 01:47AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Graham Motzing Graham Motzing 09/05/21 01:33PM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: b to the eff b to the eff 09/02/21 07:57PM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: First Name Last Name First Name Last Name 09/05/21 01:52AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Stephen Simmons Stephen Simmons 09/05/21 08:23AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Michael Jones Michael Jones 09/08/21 01:41AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: baird co baird co 09/08/21 12:53PM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Michael Jones Michael Jones 09/08/21 01:56AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Michael Jones Michael Jones 09/08/21 02:12AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Jay Rivett Jay Rivett 09/08/21 10:48AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Graham Motzing Graham Motzing 09/08/21 11:34AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Michael Jones Michael Jones 09/09/21 12:43AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: baird co baird co 09/09/21 11:23AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Graham Motzing Graham Motzing 09/09/21 11:42AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Michael Jones Michael Jones 09/09/21 04:09PM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Graham Motzing Graham Motzing 09/09/21 04:43PM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Michael Jones Michael Jones 09/11/21 06:20PM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Mike Boyd Mike Boyd 09/22/21 11:10AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Michael Jones Michael Jones 09/12/21 10:50PM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Michael Jones Michael Jones 09/22/21 12:39AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Michael Jones Michael Jones 09/22/21 11:48AM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Mike Boyd Mike Boyd 09/22/21 12:00PM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Michael Jones Michael Jones 09/26/21 10:06PM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Michael Jones Michael Jones 10/21/21 10:06PM
  Re: Polini CP 17.5 Guidance on Puch Polini 64ccRe: Michael Jones Michael Jones 11/17/21 10:03PM

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