15mm bing on a puch tuning

gonna slap on the 15mm i traded for a few months back. i had a vm18 on it last, and before that had a 14mm bing with a 73 and a 2.22 atomizer. What is a good starting point with the 15?? it is ported out and has an mlm peoples pipe. also plan on doing some clutch work to compliment it. Either blue spring or the stiffy springs on treats. looking for Starting jet suggestions, ken what do ya got for a response

Re: 15mm bing on a puch tuning

" Starting jet suggestions" Bing doesnt have an idle jet.

slide position screw

atomizer

needle clip position

main jet

atomizer can have a huge effect on idling... maybe someone that knows number will chime in...i'll try to look it up

Re: 15mm bing on a puch tuning

yes which jet to begin with, the main jet. @nd from the stop clip positon on the slide. Bing only has one jet, that is the jet im asking for suggestions on. was going to try around 78 with a 2.22 to start tuning.

Re: 15mm bing on a puch tuning

> Uncle Yoseph Wrote:

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

> yes which jet to begin with, the main jet. @nd from the stop clip

> positon on the slide. Bing only has one jet, that is the jet im asking

> for suggestions on. was going to try around 78 with a 2.22 to start

> tuning.

217 atomizer, 78 jet and one ring needle is good starting point

Re: 15mm bing on a puch tuning

2.17 and 78 unless you got a big block kit on it or Polini...

Re: 15mm bing on a puch tuning

Baron Von Hamilton /

Everyone is saying 78 For stock?

Re: 15mm bing on a puch tuning

yeah i've always had 68 be the magic number for stock setups, 78 is what a basic pp kit runs.

Re: 15mm bing on a puch tuning

> Baron Von Hamilton Wrote:

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

> Everyone is saying 78 For stock?

Yes if 15 mm intake, square port cylinder or even magnum cylinder or hi torque if intake hole is matched to 15 mm, aftermarket mesh filter and performance pipe, 217 atomizer and single ring needle,

Jetting goes by flow so the more a cylinder flows then the more jet it takes,

I’ve had stock 50cc puch open port cylinders take a higher jet then a 70cc kit before.

a 64 cc polini kit has like a dozen ports, flows like a mother and can take hi 80s to low 90s jet in 15mm bing on a e50 where as a treats/kstar pp 70cc kit will be at around 78 jet,

So more cc don’t always mean more jet

Re: 15mm bing on a puch tuning

> Baron Von Hamilton Wrote:

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

> Everyone is saying 78 For stock?

Let them repent! And......

9C04519A-C9A0-40F3-AADD-FD41DC467C3B.png

Re: 15mm bing on a puch tuning

Baron Von Hamilton /

Hahahah^^^

I asked that because I just put a kit on a e50 and it took the exact same jet as it had with the open port stock cylinder.....

Looking at the tuning spreadsheet it is all over the place.

Re: 15mm bing on a puch tuning

> Baron Von Hamilton Wrote:

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

> Hahahah^^^

>

> I asked that because I just put a kit on a e50 and it took the exact

> same jet as it had with the open port stock cylinder.....

>

> Looking at the tuning spreadsheet it is all over the place.

Oh man don’t worry, it was just an excuse for me to post that picture

Re: 15mm bing on a puch tuning

Baron Von Hamilton /

That pic it fire

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