Puch Magnum Bing Upgrade

I have Magnum XK with a Za50, high torque cylinder and magnum spec stock pipe. The motor is (obviously) not the stock E50 it came with but that's how I got it. It has

12mm Bing (1/12/314). I do however have a 14mm Bing (1/14/157) that I would like to swap over to take advantage of eventual exhaust upgrades MLM . I plan on keeping the stock top end.

My research has led me to believe that all the Magnums came with 12mm Bings with different configurations depending on the HP rating.

Myrons Mopeds Bing Chart

Ive been trying to piece together enough information to make an educated guess on where to start with my 14mm Bing, but maybe some of you know better and can help me get going in the right direction.

I have 2.12A, 2.17, and 2.22 atomizers, a handful of jets from 50s-80s, needle types 1 and 2, and slides #24 and #51.

Ive assembled the carb to a 2HP configuration found on a similar bike (1/14/196) 1984-86 2.0hp Puch Cobra 1, Cobra 2 14mm tall intake, 68 Jet, #24 slide, type 2 needle, and 2.17 atomizer with an unrestricted magnum airbox. Probably going to test tomorrow pending responses. Thanks for your help.

Re: Puch Magnum Bing Upgrade

Overpriced Parts /

A flat exhaust port hi torque cylinder don’t fit a stock spec angle port magnum pipe

Maybe post a picture of engine pipe combo

Magnum cylinder 14mm bing and metal mesh filter stockish setups I run 68-72 jet with 212a atomizer but that’s with a bat style magnum exhaust with a extra 5/16 hole in it and magnum cylinder,

Re: Puch Magnum Bing Upgrade

It looks like the angle port to me. Thanks Ken.

I don’t currently have a high flow filter that will fit under the side covers but I’ll see where I am at with the gutted magnum air box. I will also have to look into the exhaust mod.

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Re: Puch Magnum Bing Upgrade

Overpriced Parts /

Even the large high flow filter will fit under the side covers after you crimp it a little bit,

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Wow the pictures glitched!

This bike I ran my magnum exhaust mod for over 10 years

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but for winter use I tried the mlm pipe and though in the required a lot of modifications to get it to fit because the mlm’s mockup was so far off and it cost me a couple mph on the top end the low end kills on hills and takeoff was better compared to stock pipe

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