Moped buy
- Thread starter DrMoles
- Start date
Why mopeds? Why an Aerox? What age Aerox?
They came in two 2-stroke versions, a liquid cooled 50cc model with a Minarelly horizontal engine, and an air cooled 100cc Minarelli horizontal engine. These both take very well to tuning.
The new ones are 4 stroke and a 4 stroke 50 is about as slow as a bicycle.
They came in two 2-stroke versions, a liquid cooled 50cc model with a Minarelly horizontal engine, and an air cooled 100cc Minarelli horizontal engine. These both take very well to tuning.
The new ones are 4 stroke and a 4 stroke 50 is about as slow as a bicycle.
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A two stroke will tune up to about 20hp fairly easily. 22-23 if you really wanna go for it,but open your wallet.
Get a cylinder kit from a decent brand (Malossi, Polini, Airsal, Top Performances). Doesn't need to be the top model (MHR, Polini Evolution, etc). A regular cast iron kit will do. Get a 24mm carb and a tuned pipe (if you can find a Gianelli Nardo, they're bloody fantastic but no longer made).
It'll be thirsty though, keep that in mind.
Edit- looks like the Nardo was relaunched as the Gianelli Shot, so you might find one easier than you think.
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Soldato
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How old are you? Also the issue with scooters is the small wheels, I have no experience with motorbikes only pushbikes but I can tell you from that bigger wheels are better, roll better, pot holes aren't so unstable, so should be the same for motorbikes.
I'm aware of "big wheel scooters" so look for something like Piaggio Liberty or similar
I'm aware of "big wheel scooters" so look for something like Piaggio Liberty or similar
It's a 50cc two-stroke. It has about four moving parts. Check the brakes, check the forks for leaks, feel that the steering is smooth and not notchy. Bounce up and down on it and if it rises and sags slowly, you're good. If it bounces up and down, the rear shock will need replacing. Wobble both wheels abit to make sure the bearings aren't shot. Make sure it starts when cold (tell any seller to make sure it's cold when you come view it, and feel the exhaust to confirm). A hot two stroke that starts easily could be hiding the three hours of kicking and ez-start the seller used to get it going.
Check the frame number, it'll be behind a little plastic panel below the dash / handlebars. Make sure it's not ground off.
Ultimately these things are old now and will all have been abused by teenagers who can't afford to maintain them properly, so be prepared. You're extremely unlikely to find one in excellent nick, but parts will be cheap and plentiful and you can strip them down with a socket set, screwdriver set and allen keys.
Let us know how you get on, genuinely interested
Soldato
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It's a 50cc two-stroke. It has about four moving parts. Check the brakes, check the forks for leaks, feel that the steering is smooth and not notchy. Bounce up and down on it and if it rises and sags slowly, you're good. If it bounces up and down, the rear shock will need replacing. Wobble both wheels abit to make sure the bearings aren't shot. Make sure it starts when cold (tell any seller to make sure it's cold when you come view it, and feel the exhaust to confirm). A hot two stroke that starts easily could be hiding the three hours of kicking and ez-start the seller used to get it going.
Check the frame number, it'll be behind a little plastic panel below the dash / handlebars. Make sure it's not ground off.
Ultimately these things are old now and will all have been abused by teenagers who can't afford to maintain them properly, so be prepared. You're extremely unlikely to find one in excellent nick, but parts will be cheap and plentiful and you can strip them down with a socket set, screwdriver set and allen keys.
Let us know how you get on, genuinely interested
yeah I guess the problem with mopeds especially 50cc is you have to rev them constantly , I guess they go through piston rings etc.
No you don't, the whole point of a CVT is to keep the revs at the perfect speed. If the revs are rising and dropping as it picks up speed then there's something wrong with it or it's poorly tuned.
Once you've got the dance down on the piston rings they can be swapped in 20 minutes. Even quicker if it's a race bike with bodywork cut out. Still, a cast cylinder will last very long.
This is what I used to do when I was a kid. 50cc two strokes are my jam, I used to tune all of the ones in my town for everyone.
I had mine serviced every year, on the day I sold it, it wouldn’t start. The kid who came to buy it ended up pushing it for a few meters and then it started. Made my wonder if that’s what I needed to do all those times I couldn’t start it.
No. It's a CVT, pushing it won't have had any effect on the engine as the clutch is centrifugal and therefore completely disengaged.
Could've been anything. Blocked jets, knackered carb float, blocked fuel filter, worn piston rings, etc. He just got lucky.
Or you kick like a girl.
Soldato
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Can't good for a engine you have to redline it though. As a push biker a 50cc moped slowly overtook me, screaming like a banshee.
How can that result in a long lifespan of an engine?
You don't have to redline it. You can, but you don't have to.
Good luck getting 20hp out of a 70cc kit...lol
Bought it March 2009 for £999 sold it in April 2015 with 6500 miles for £280. Kid who bought it wanted £50 back because apparently he couldn’t start it when he got it home.
So I did, it also had a damaged front where I think someone drove into it while it was parked, I looked after it had it service every year.
Soldato
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Every 50cc moped I've met on the open road - they had to. And even then they're barely faster than my road bike. They top out at 30mph.
Personally I'd avoid 50cc step to 125cc. I'd only use a 50cc around town.
Also this is about legal 50cc.
Youre talking about here though. The OP is from Latvia, where you're only allowed a 50cc until you're 18 and the whole 125 thing doesn't exist at all. It's pretty much 50cc ---> big bike over there, which is why tuning them is such a big pastime.
I lived in Holland from 15-22. Same rules. I had dozens of mates with 50s and not one of them was stock. Some were only derestricted (the Aprilia SR 50 Ditech was the best for this, and had to be derestricted with a GameBoy, no, I'm not making this up) but not one of them were at the "factory settings".
This also explains why the cops had so many little moped dynos in the back of their vans, so they could catch little scrotes like us and crush our bikes (which only happened to me once thankfully).
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Scooters can be fun if you don't expect it to have tonnes of power. If you ride them in the right manner, they can be a great mode of transport.
Electric ones are in another league - the weight and electric motor are a blast! They feel like rockets up to 40-60mph.
Most of the ICE engines are so simple that you could disassemble and reassemble one with a simple socket set. There's just not much going on compared to a big bike with ITBs, variable trumpet lengths, big gears to handle the power, electronics for traction/lift control or dynamic electronic dampening, and so on.