BIG BORE kit TESTED - Second Stroke Mopeds 

Sure thing! Common practice at the shop. It’s nice to have a couple of specific tools to make custom gaskets quick and easy, like a hole punch and curved scissors. Maybe I’ll make a vid to should this one day??

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You gave NO indication of how much it improved performance... Does anyone know how much this boosted power? @@MopedProblems

We are keeping it alive!

@@MopedProblems I have 6 now, the bride found my stashed collection. She never goes to the garage in winter. Is there a help group:)?

We are just about to get back from vacation, so more vids coming soon. As well, an episode of what were up to the last month. Don’t forget to subscribe

Piston port timed kits are made differently than reed kits. They use different techniques to produce power. Reed kits control flow of fuel and air with the fibers of the reeds, but offer less control at higher RPMs. They are known for excellent low RPM power. Piston port rates have excellent control of the air and fuel mixture. The Piston physically opens a window. The benefit, there is zero blockage (reeds will interfere with flow). This is noticed in the higher RPM range, where piston port kits can really sing.

Your moped is assembled and tested here at our facility, then repackaged and strapped to a pallet for shipping. The handlebars are lowered and the pedals are removed for shipping. When you receive the bike, You will have to adjust the handlebars to your liking and tighten them in place, and install the pedals. That’s all.

💥🎇🎆

That’s what it’s all about! Good luck bud! 👍. I have another vid about me taking out my old 103 out for the 1st time in years. Check it out

@@MopedProblems thx bro,and greetings from Belgium 😉

Thanks bud. We have a location in NYC and Bradenton, FL.

What carb do you use?

Customer is always right.

Helps with low rmp power

Nah, this is a modest kit. In some cases, with larger bore kits it might be a good idea for a crank upgrade. The upgraded crank will replace brass bushings with needle bearings. And have “stuffing “ for a balanced crank while improving case volume. Unfortunately for the 2 speed Puch motor (za50)... there are not a ton of crank upgrade options

@@MopedProblems i work on Tomos mopeds too, but when it comes to the Automatic or any other, which have a 38mm piston no one likes to change the bore bigger than 39mm. Maybe with a 39L piston that you put on your Puch(talking about the L piston, not the bore) . I have a APN 4 and tried with a 42mm but the standard or even a needle bearing crank started to knock after a while. In my opinion they are not made for this kind of upgrades without upgrading the crank :)

@@davorstimac8145 jesi li probao italijansku alfare radilicu za apn?. Inače lomos ima jako kilave radilice i meke blokove motora.

I think I will make a tutorial on gasket cutting in the near future. It’s a lost art 🖼

The 64cc port was also round and matched the round intake “close enough”. Using a Dremel to better match the cylinder and intake is common practice, since the customer rather keep the stock exhaust, I didn’t think details like this would make an impact.

It’s a good idea, comprende!

Sure, send it!

It's a negrini leproto and has a gyromat motor 50cc I'm sorry I forgot how to send messages on here and pictures

Lots of factors and options for going fast, but we try to put something together.

We in Maspeth!

I live by the saying “work smarter, not harder“

I haven’t come across the 4L until very recently. We have four of these motors in our next shipment. From what I understand, they are the same as the Puch Allstate motor. Nonetheless I have no tips yet, but after we learn more about these, in a month approx... I may have some insight.

@@MopedProblems Cool thanks for the reply and i had noticed the four motors you took with you from slovenia if i remeber correctly hope too see some cool vids for those!! Do let me know what you find! Keep up the great content!

Best nuts in a nutshell

Oh yeah?? Do tell!

@@MopedProblems so this trike falls into my lap . Motori 50cc...need a new gas tank and line spark plug I am cleaning and lubing it. Dying to hear her start

yes, i would get a 15mm carb. and a new indtake

You don’t “need” to. In this case, the customer only wanted to spend a little money. He also did not want a setup that was loud, drawing unwanted attraction. In this case the stock intake and stock exhaust was used. Gave him an affordable and quiet set up. While this did give him a boost in power and top speed, we could’ve gotten more power with a larger intake, carb and performance exhaust.

Quickest way to seize a kit. If your gonna do the work, you want it to last! So don’t forget about jetting!

@@MopedProblemsthats right! Did you try to make some highend moped? Stage6 R/T 70cc liquid cooled cylinder? Or something like that? Don't tune tomos hard, because they have weak blocks (bearing cases). I am from former yugoslavia so lot's of tomos is going thru my hands.

work smarter,not harder;you last longer that way.

I can't believe you are making a point about him using a lift so as not to not put his back out. Are you a muscle bound he man with something to prove?.......wow impressive, you can lift a moped you tool. He does it all day every day, did that not occur to you you dumbass !

Max Guggenberger ja