2011 buddy 50

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jns1981
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2011 buddy 50

Post by jns1981 »

hello all! i have a 2011 buddy 50 that i kind of want to mess with a bit. its stock right now and want to help it with hills in the hudson valley.

what are no-brainer upgrades?
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Dooglas
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Post by Dooglas »

You've heard the old saying, "there is no replacement for displacement". That thinking points you toward a big bore kit such as this one.

https://www.scooterworks.com/NCY-Cylind ... P8850.aspx
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eggsalad
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Post by eggsalad »

Before modifying your 50, you should be aware that under New York State law, any "limited use motorcycle" that can exceed 30mph is considered a Class A Limited Use Motorcycle, and requires a motorcycle license.

If you modify your Buddy 50 to exceed 30mph and do not have a motorcycle license, you are subject to citation and impounding of your scooter.

If you do have a motorcycle license, why not just buy a 125?
jns1981
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Post by jns1981 »

eggsalad wrote:Before modifying your 50, you should be aware that under New York State law, any "limited use motorcycle" that can exceed 30mph is considered a Class A Limited Use Motorcycle, and requires a motorcycle license.

If you modify your Buddy 50 to exceed 30mph and do not have a motorcycle license, you are subject to citation and impounding of your scooter.

If you do have a motorcycle license, why not just buy a 125?
its already unrestricted-- i have it to drive to/from the train station & boat club... i dont cruise with it, its 5 minute trips sometimes with our 7 year old on the back going up a hill in the hudson valley...
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tenders
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Post by tenders »

Unless you're making an a$$ of yourself, it is highly unlikely that anybody in Westchester is going to care if a 50cc is going 47, which is about as fast as a BBK will get you on a Buddy.

Not impossible - just unlikely.

But I will say it's interesting and highly educational to take an MSI course over a weekend and get an actual M license. I did mine in Long Island although I also live in Westchester, and one of the instructors was a stunt driver. On breaks he took somebody's course-supplied Honda at random and rode it around the range like a demon, throwing sparks on tight turns, etc. It was awesome.

Oh, and do join the Scooterfleet (Westchester-Connecticut sector) on Facebook. You're exactly the demographic. I'll send you a sticker.
https://www.facebook.com/groups/596233447684750
jns1981
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Post by jns1981 »

tenders wrote:Unless you're making an a$$ of yourself, it is highly unlikely that anybody in Westchester is going to care if a 50cc is going 47, which is about as fast as a BBK will get you on a Buddy.

Not impossible - just unlikely.

But I will say it's interesting and highly educational to take an MSI course over a weekend and get an actual M license. I did mine in Long Island although I also live in Westchester, and one of the instructors was a stunt driver. On breaks he took somebody's course-supplied Honda at random and rode it around the range like a demon, throwing sparks on tight turns, etc. It was awesome.

Oh, and do join the Scooterfleet (Westchester-Connecticut sector) on Facebook. You're exactly the demographic. I'll send you a sticker.
https://www.facebook.com/groups/596233447684750

yeah thats a realistic take on this area! :lol:
ive been on dirtbikes on/off since I was 12... this scooter was literally an exercise in avoidance... avoiding buying a train station parking pass (chained to fence) avoid high insurance, avoiding license endorsements, avoid high gas prices, and most importantly, avoiding walking up the steep hill to our house after work... I dont need top end speed, I need to get up our hill with our 7 year old on the back a bit quicker...while avoiding buying a new scoot!

im looking on ebay and they have frighteningly cheap BBK! what is the issue with those options?
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tenders
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Post by tenders »

BBKs are not my expertise at all but a lot of Chinese stuff on eBay is touted as compatible with the Buddy 50 but is not. The carbs, for example. And more of it is terrible quality. Carb jet kits, for example. I would be entirely leery of a cheap Chinese Buddy-“compatible� BBK without a direct personal recommendation for somebody.
jns1981
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Post by jns1981 »

tenders wrote:BBKs are not my expertise at all but a lot of Chinese stuff on eBay is touted as compatible with the Buddy 50 but is not. The carbs, for example. And more of it is terrible quality. Carb jet kits, for example. I would be entirely leery of a cheap Chinese Buddy-“compatible� BBK without a direct personal recommendation for somebody.
wrd- step 1 is just a BBK... for ~$60 its hard to resist...
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tenders
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Post by tenders »

If your repair time is worth nothing and you don't mind the inconvenience of an inoperative scooter, then go for it!

Personally I don't have patience for cheaply-manufactured parts in internal combustion engines, although it did take me a while to come to that conclusion.

Maybe you should buy a basket-case Chinese scooter on which to inflict your bargain-basement mechanical whims. Don't get me wrong, there's nothing wrong with those whims. I just don't see the point of Tao-Tao-ing a perfectly good Buddy with a part that may or may not even fit it.

There is this testimonial from the Scooterworks kit:
http://www.modernbuddy.com/forum/topic12299.html
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Post by PNWbuddy »

You can get a Malossi 70cc BBK from ScooterWest for $136. Unless that is unaffordable I would go for that instead of an unknown Ebay China BBK and risk just wasting the $60.

I put one of the Malossi BBK on a Buddy 125 (kit from ScooterWest) and I thought it was very good quality. With just the BBK the stock carb worked fine and it sounds like from Tenders linked post that the stock carb works for the 50 with a BBK also although that was at higher elevation.

The BBK install on the 125 was a simple straight forward job, it probably is also for a 50.
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tenders
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Post by tenders »

The stock carb and exhaust on the 50 does work with the 70cc BBK kit.

You just upjet the main jet to an 85 and add a shot or so of extra 2T oil to each gallon of fuel in addition to what the oil injector already adds.

The other member of Scooterfleet has this exact setup with his blue Buddy. It's perky and fun, and of course all that 2T oil smells pretty badass. But it isn't as perky or fun as a 150cc.

It definitely still smells more badass.
jns1981
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Post by jns1981 »

$150 is certainly doable...my take was the cheap Chinese parts would be a bit raw and require chamfering & finishing more than an ncy kit.

I have a question. How can I tell what size pin my 50cc has? Just take it apart and measure? Is there another way?
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tenders
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Post by tenders »

If by “pin� you mean “jet,� the stock main jet on the Buddy 50 carb is #75. You confirm this by removing the jet and scrutinizing the tiny numbers that are embossed on the base. This isn’t difficult, especially once you’ve taken the carb apart a few times, but I wouldn’t recommend pulling the carb just to check the jet size unless you have a reason to suspect it’s been messed with.

The idle jet, which is physically larger than the main jet and irrelevant to kitting, is #40 size, although in some documentation it says #35. My original ‘09 idle jet was #40, and the 2019 replacement carb’s jet was also #40.
jns1981
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Post by jns1981 »

piston pin- ive seen BBK's for 10mm and 12mm pins
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buzzvert
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Re: 2011 buddy 50

Post by buzzvert »

I'm trying to decide a similar path for a Roughhouse 50- the only difference here is that I have the luxury of having a whole extra drivetrain sitting outside the bike. What I really WANT to do is see how cheaply I could go insane- the Buddy/RH 50 is essentially a QMB139 clone. As such, one COULD get a BBK for < $50, a variator for < $50 and a Mikuni clone slide carb for < $30 as well. On the other end of the spectrum is the $90 Malossi variator kit, an NCY BBK for $180 and a better Mikuni OEM carb for $75+.

I've got all winter to think about it thankfully.
jns1981
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Re: 2011 buddy 50

Post by jns1981 »

im starting things off by testing different roller weights. $8 per set is a cheap way to start things off.

most id do is a 70CC kit and jetting the carb.

the boat is hibernating for the winter, so i need something to fidget with-but dang did my fingers get cold last night just swapping weights!
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tenders
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Re: 2011 buddy 50

Post by tenders »

Not a ton of discussion that I recall about changing weights on stock Buddies. Let us know what you find.
jns1981
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Re: 2011 buddy 50

Post by jns1981 »

I went from the stock 7.5’s to 7’s. Then down to 6g.

I’ve noticed a bit more pep off the line and still manage to get the needle up a bit past 40mph on level ground.
I’m still looking at a BBK.
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