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 Newb question 
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Post Newb question
I am going to get a Vino soon and have a few questions;

1. How many RPMs can I get the stock 50cc cylinder to spin if I port the cylinder and grind the moon-shaped metal out of the exhaust port? (I will be using a 21mm Del' carb.)
2. I want to make it as light as possable without losing the road-legality. What can I remove/cut down?
3.I seen on Provo some whitewaled tyres. Are they safe for higher speeds?
Thanks guys and gals and transvestites. :jihad:


Thu Feb 21, 2008 4:06 pm
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Post Re: Newb question
Yamahagot1 wrote:
1. How many RPMs can I get the stock 50cc cylinder to spin if I port the cylinder and grind the moon-shaped metal out of the exhaust port? (I will be using a 21mm Del' carb.)

How far is up? Seriously though, all this is dependent on how much reliability you need/expect and your porting/tuning skills, not to mention the laws of physics.
Yamahagot1 wrote:
2. I want to make it as light as possable without losing the road-legality. What can I remove/cut down?

Since they weigh less than 165 pounds with the fuel and oil tank full, not much.
Yamahagot1 wrote:
3.I seen on Provo some whitewaled tyres. Are they safe for higher speeds?

According to my vintage Vespa friends, in a word, no! They are just for looks. No one makes a white wall scooter tire that actually handles well, and believe me, they would know.

What's your goal here?

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Thu Feb 21, 2008 6:19 pm
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Post Re: Newb question
Thanks Oldguy. I want it 2 be as fast as possable, but still reliable. I dont care what it will look like when finished, I just want it faster than stock. i am thinking about strippig all plastics off and chopping whatever metal I can.


Fri Feb 22, 2008 7:22 am
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Post Re: Newb question
Yamahagot1 wrote:
Thanks Oldguy. I want it 2 be as fast as possable, but still reliable. I dont care what it will look like when finished, I just want it faster than stock. i am thinking about strippig all plastics off and chopping whatever metal I can.


First of all, welcome.

Secondly, scooters already weigh next to nothing, and whatever little that you will be able to strip off the Vino really will not make much difference at all. If your mission is to be reliable and as fast as possible, get a nice exhaust and tune the engine with the methods that you see under the Tuning section on Provo.

That really is all the advice I can give you. My point is that there really isn't much to strip off a scooter in the first place, and the meager 10lb or so that you can take off the scooter really won't give you a significant, if even noticable, increase in performance.

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Fri Feb 22, 2008 8:01 am
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Post Re: Newb question
[quote="Yamahagot1"]I am going to get a Vino soon and have a few questions;

1. How many RPMs can I get the stock 50cc cylinder to spin if I port the cylinder and grind the moon-shaped metal out of the exhaust port? (I will be using a 21mm Del' carb.)

Does it still have the stock exhaust?

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Fri Feb 22, 2008 8:24 am
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Post Re: Newb question
Yep.


Fri Feb 22, 2008 8:26 am
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Post Re: Newb question
There's not much you can do then. Max is around 8k, except downhill.
Not worth putting a bigger carb on it either.

You can get close to 45mph by derestricting, after market variator,
longer belt from a Jog 788x16.5x30. I also used a pod filter and
upjetted the stock carb, but it gets very noisy.

You could bypass all that and just put an exhaust on. Would probably
go a little faster without messing with too much else, just a slight carb
adjustment, and lighter variator rollers.

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02 Vino, ported Polini contesta, bored out stock carb (~17mm), Next R with 20mm shorter
header, Tecno variator 4gr, Jog 90 belt (8mm longer), moded front forks (1/2" wider), Sava
100/80 front & rear


Fri Feb 22, 2008 8:42 am
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Post Re: Newb question
As far as removing metal and plastic. The metal is all structural. I don't believe there's any that can be removed or lightened without dangerously affecting the integrity of the vehicle. We aren't talking about a 3000 pound car here. There's just not much weight to be cut-off in this area. You can probably save more weight by just going on a diet yourself. I know I could. :3:

The plastic weighs very little and provides a lot of aerodynamic assistance. The few ounces of weight saving (and I doubt that all of the plastic weighs more than 5-6 pounds) would be offset by the loss in this area.

How are you defining "reliable"? Are you counting on your scooter for daily transportation, or just as a weekend hobby ride? How much time are you willing to spend keeping it running versus the amount of time you get to spend riding?

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Fri Feb 22, 2008 9:41 am
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Post Re: Newb question
The question about "whitewalled tires". I don't think they would be better for handling speeds nor turning sharply. It's basically an aftermarket tire.

Not all tires will handle sharp turns. NEVER turn sharply on a road with sand or gravel on it. Sway slipped a week ago and I have slipped on a turn but didn't crash.. :wth:

Scoots have this problem in general because they are light to begin with.

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Sun Mar 02, 2008 7:20 am
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Post Re: Newb question
Yamahagot1 wrote:
I am going to get a Vino soon and have a few questions;

1. How many RPMs can I get the stock 50cc cylinder to spin if I port the cylinder and grind the moon-shaped metal out of the exhaust port? (I will be using a 21mm Del' carb.)
:jihad:



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02 Vino, ported Polini contesta, bored out stock carb (~17mm), Next R with 20mm shorter
header, Tecno variator 4gr, Jog 90 belt (8mm longer), moded front forks (1/2" wider), Sava
100/80 front & rear


Wed Mar 05, 2008 2:02 pm
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Post Re: Newb question
Nice. Is that your Vino, Stepvino? You were probably doing 65mph!


Wed Mar 05, 2008 2:09 pm
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Post Re: Newb question
Speedo is about 10% too high, it was 56mph one way,
and 58mph the other way. Beginners luck! I'm trying to
get a 70cc cylinder to do the same, and it's not even
close.

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02 Vino, ported Polini contesta, bored out stock carb (~17mm), Next R with 20mm shorter
header, Tecno variator 4gr, Jog 90 belt (8mm longer), moded front forks (1/2" wider), Sava
100/80 front & rear


Thu Mar 06, 2008 7:18 am
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Post Re: Newb question
In defense of the white walls I have contentials (spelling>me) and they have felt stable at 50+ have much more grip than the stock ones. I can't count all the times my vino slid out from underneath me on the stock tires, but the conti's felt much better and have never budged. Also they have a deep tread pattern so they feel much more stable when its wet outside, they don't sling water like ones with shallow tread will. Now I now the stock tires are garbage, but I'ts all I have to compare to.

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Wed Apr 02, 2008 12:05 pm
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Post Re: Newb question
Nice vid, step. Glad to see your riding. Or is that old footage...

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Wed Apr 02, 2008 1:30 pm
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Post Re: Newb question
That was last year some time. I've played with a couple of 70cc
cylinders since then, haven't got them to run better than the 50
so far :). Now I have a Polini contesta, and I'm trying to mod it
by the book, but I'm getting a bit bored and frustrated with it.

Moral is (in reply to topic), read up enough to get vaguely
familiar with the concepts, then start grinding away a bit at
a time, with a test run between each session. If it runs better,
do some more of what you just did! Simple really. Too much reading
just gets you bogged down in details.

BTW maybe I missed it, but I didn't see any mention if this new
Vino was going to be a 4 or 2 stroke.

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02 Vino, ported Polini contesta, bored out stock carb (~17mm), Next R with 20mm shorter
header, Tecno variator 4gr, Jog 90 belt (8mm longer), moded front forks (1/2" wider), Sava
100/80 front & rear


Fri Apr 11, 2008 7:25 am
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