Scooter Piston Assembly - How To Install Rings

www.scooterstreet.com.au
In this step by step video we explain how to assemble the rings on a 2 stoke scooter piston, and insert into the cylinder ready for install onto the engine.
We sell standard replacement pistons & cylinder kits as well as performance cylinder kits. Check out our website for more info!

[@djlancer88]

My first time doing any kind of engine work involving pistons and cylinder heads =D. My kit just came today and I really appreciate this video dude. Hoping this thing fires up today =D

[@scooterstreetau]

Welcome to our channel, you got this🤙

[@dongerramarco9617]

first step don't scratch the piston

[@scooterstreetau]

Yes so true, haha.

[@useribp]

If we replace the pistons in a scooter can cause problem with power after ?

[@scooterstreetau]

No, if the correct piston has been installed, and in the correct manner there should be no problem.

[@grimreaperkarting1122]

Awsome video mate great help thanks

[@scooterstreetau]

Thank you.

[@gm32801]

Hi!
My snap ring broke off inside its housing. How can I get the remainder out?
Its holding the piston pin in place.
I really need help.
Thanks

[@scooterstreetau]

There is a small tool with an angled picker point that you can use, most local tool stores. Push the clip to the insertion and remove.

[@rshproductions2178]

Hi there,
Just wanted to ask a quick question: Does the 70cc Malossi Sport piston rings have any particular position where you placed them on the piston as I cannot see no markings at all on both of the rings.
Thank you.

[@scooterstreetau]

Can go in any position, first or second ring groove. The mark must be facing the crown of the piston. See video timeline 0:57

[@Rcguy2591]

@@scooterstreetauI’m dealing with the same issue. There is no markings on the rings

[@asdbenitor]

If there's no arrow instead has 3 lines should those be towards exhaust?

[@scooterstreetau]

To fully understand why the piston must be facing a certain direction! This will help you for the future whether the piston is marked or not. The piston has 2 small ring Pins that locate the ring ends. These Pins are positioned so they slide on the cylinder surface without making contact with the ports (cylinder openings). So let's insert the piston in to the cylinder without the rings. Now line up the Ring Pins and you will notice if they slide over a port or not. I usually mark the top of the piston inline with the pins so you can easily see the pin position as it moves down the cylinder. If they do not contact the port then you have the correct positioning of the piston.✌️

[@stauf09]

Can anyone help me.i have a toa toa 2014 49cc scooter I would like to know what size piston head they used with a 69mm valve.

[@scooterstreetau]

We're unfamiliar with that model sorry.

[@stauf09]

@@scooterstreetau okay thanks for the reply.

[@scooterstreetau]

@@stauf09 We don't see this Brand in Australia.

[@JiggyPapason]

did i miss the part about piston ring end gap?

[@scooterstreetau]

yes. maybe, dunno.

[@Alex-fb6jo]

What size are those rings? I need some bad

[@scooterstreetau]

Standard 50cc Morini Air cooled.

[@tonyconnors1342]

Really helpful thank you.

[@scooterstreetau]

Your welcome.

[@cocoweed]

Why ain't u use oil ??

[@scooterstreetau]

We mention the use of oil for lubrication at 7:05. This is benchtop demonstration only.

[@gayansaman3579]

Kiyak wenawada,

[@gayansaman3579]

Gana kiyak wenawada

[@paulbudford]

That's definitely the best way to install a piston. I used to put the piston on the crank first. But this is a better way when you don't have a lot of space.

[@scooterstreetau]

Yes, those tight spaces test the patience..😂