Yamaha Vino 50 won't get past 28 derestriction By mjcharger (Read 10,896 times)

[mjcharger]

A gal I know has a Vino 50cc (4000 miles on it, last serviced at 3000 miles) and she can't get it past 30 mph. (120lb rider). Bike starts great, idles great, decent tires. I figure with her weight she should be able to go faster.

Can any past/ current Vino owners tell me what kind of speeds they are getting? I want to know if it's just the way the bike is, or if there's something wrong with it.

It's been 2 years since I owned a 50cc scooter (Lance Charming 50), but I thought it averaged low 30's (170 lb rider).


Thanks.

[JR]

The Vino comes in two models before 2006 they are 2 strokes and restricted so if you want more speed you got to remove the restrictors. After 06 they are 4 strokes and should easily hit 40 MPH.

Let us know what you have and we can figure out the problem.

JR

[mjcharger]

Sorry I didn't add it, but it's definitely a 2 stroke auto-lube bike. I dont know what year it is.

That's good to hear that the bike is running correctly per Yamaha, but that still sucks not being able to go past 30.

Anyone know why they restrict them? Emissions? Taxes? Mechanical problems?

Has anyone had any concerns/ issues/ tips after they've de-restricted their bike? Overheating, running lean, belts, weights, wear etc?

Thanks again

[alleyoop]

They restrict them so that they can be sold AS MOPEDS that only do 25-30mph and not require a motorcycle license. So de-restricting them they will normally do around 35 or a little better.
Alleyoop

Here is one Possible Restriction IT MAY HAVE:
thescooterprofessor.proboards.com/index.cgi?board=two&action=display&thread=1512&page=1

Here is another Video:


Here are MORE possible Restriction IT MAY HAVE:
.scootnfast.com/scooter/Tuning_mods/De-Restricting.htm" rel="nofollow" target="_blank">.scootnfast.com/scooter/Tuning_mods/De-Restricting.htm

[usmcdoc]

The early Vino's were also geared very low...0-30 was a snap...after that...they just hovered at about 30. I have up geared a few for folks and it worked well. But check for restrictions FIRST as mentioned above...

[mjcharger]

Ok well we got the exhaust and variator restrictors out and are now able to reach 36 mph. Low end acceleration is much improved too.

The only tricky part was getting the restrictor out of the exhaust. I googled more about the exhaust funnels and it said to just pry it out of there as the welds should break loose.

Well I broke a screwdriver trying to pry it out of there so I took it to a welder/ trailer hitch installer. I gave the mechanic a six pack of beer and in 3 minutes my exhaust was opened!

Top speed after the variator washer was removed was around 32mph and after the exhaust restrictor was removed it jumped to 36. Alleyoop was right about it just getting past 35.

Thanks for the help everyone

Attachments:

[mjcharger]

Didn't have a dremel or I would have done it myself

Attachments:

[JR]

Very nice! Amazing how much this scooter was restricted.

JR