15mm Bing and Tecno Circuit for Puch Maxi

Nicholas Reynolds /

I'm installing a new 15mm Bing Carburetor and a Tecno Circuit exhaust pipe on my Puch Maxi this weekend. Is it ill-advised to switch out the carb and the pipe all in one go? I've heard one thing at a time works out well, but if they're both going to have to work in congruence I feel like I should just do everything at once.

Re: 15mm Bing and Tecno Circuit for Puch Maxi

The pipe and carb will not be an issue. But I do hope you got a range of jets for tuning. I am not sure what the bing will come with in it. Might be perfect, but probably wont be. You can play with the needle position if it is not quite right, but close.

Re: 15mm Bing and Tecno Circuit for Puch Maxi

Original 15mm bing comes with a 82 main jet, you will need smaller jets even if running a kit. I run around a 77 78 with mine on a kit

Re: 15mm Bing and Tecno Circuit for Puch Maxi

Nicholas Reynolds /

Got a range of 70's jets on hand!

Re: 15mm Bing and Tecno Circuit for Puch Maxi

That's a safe transition to a great setup. Get a metal mesh filter while you're at it.

Re: 15mm Bing and Tecno Circuit for Puch Maxi

Nicholas Reynolds /

Yes, I bought a metal mesh hi flow filter as well!

Re: 15mm Bing and Tecno Circuit for Puch Maxi

Rob Abbott /

Got a 70cc kit? I run a 79 jet in my 15 bing and seem to have found the sweet spot.

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