Upgrade Question

[yama916]

Im sorry to barge in on your thread, but Ive asked about free mods. Basically there's none. So Im looking to spend some money to get my stock Zuma to 50 mph or so.. 37~40 is just so slow..

What is the cheapest route?

Erika, to get to 60mph on 49cc what are all the mods you had to do?

From what Ive learned so far...
need a Next R pipe from Technigas. $149 .. or is ZX pipe any better?
malossi tci $69
replacement rollers. if stock is 6.5g and the one Provo sells are 4 or 4.5.. i will lose top end speed no? less weight is better torque but less top speed ?
Do I need to buy a Malossi Variater for 49cc set up? will it help with the top speed? the stage one kit for 229 sells a techno variator, which is not good. but i dont see any Malossi variators at provo.....

so are these it? 3 parts? pipe 150, tci 70, variator ?? (malossi)... to get to 50+ on 49cc motor?

I live in Chicago and there are no hills... I just want to keep up with traffic.
thanks
Yohei

[tinman]

Good question ,I,m told the leovince zx fits the zuma better but i,m not sure what pipe is the better performer , but with the question we are asking from our forum friends ,we will find out , or maybe they are both good pipes.

[Aviatrixie]

Hi Yohei :)

I reached 60 mph using only the Provo Stage One kit, which includes the Tecnigas Next R pipe, the Technomoto VarioPlus Variator (which includes 3 different sets of roller weights and a a stiffer Torque Driver spring for the rear pulley assembly), and stiffer clutch springs for the centrifugal clutch which allow the clutch to engage at a higher RPM since the pipe doesn't begin to make usable power until a higher RPM than the stock muffler does. I also have Michelin S1 tires on my Vino. Those are taller than the stock tires on Vinos and increased the rolling circumference which translated into about a 2 MPH increase at any given engine speed. I don't think the tire issue applies to Zumas though since they come with bigger tires I believe. Jered or other Zuma riders can help you with that aspect.I did not install a CDI as it wasn't nessesary on my Vino. I don't know about the Zuma, but I don't think it's nessesary on them either in the stage one mod. Most of the speed increase comes from the pipe, as expansion chambers produce vast increases in peak engine RPM. The variator upgrade is important to tune your tranny to the new powerband characteristics with the expansion chamber installed. Chambers are marvels of engineering and are tuned to help draw the fuel/air mix into your cylinder. They actually draw some of that mix all the way thru and into the pipe header, but right before the exhaust port closes a sonic pulse actually stuffs that mixture back into the cylinder, essentially supercharging the engine. That's why expansion chambers produce such prodigious amounts of power, but in a much narrower powerband than the stock muffler. Those sonic pulses are all manipulated by the shape of the chamber and are tuned for a specific engine. There is a very good article on expansion chamber physics at motorcycleonline.com if you want to know more.

It's important to mention that I only weigh 130 lbs and my Vino was a strong runner even stock. Still, with just the Stage One kit from Provo you should easily see 50 mph plus, and if you use heavier rollers even a bit more. Properly tuned I see no reason why you couldn't approach 55 mph even if you weigh considerably more than me.

I had my kit installed by my Yamaha shop mechanic and he told me it was really a very straight-forward process. He even showed me how to change the rollers myself so I don't need to go to the shop for that anymore.

And yes... it was a blast cruising down a 4 lane highway with a 55 mph speed limit and actually going with the flow of traffic on my little Vino!

Erika

p.s. Provoscooter DOES carry the Malossi MultiVar. I asked Erich about that in an email a while back and he told me that you can request that the MultiVar be substituted in the Stage One kit and that the price was the same. That was a while ago and may have changed, but I doubt it. Drop him an email asking him about it. I'm about to order a MultiVar from him myself. I'm also going to order the outer finned Malossi variator pulley half so my entire vario will be Malossi.


Im sorry to barge in on your thread, but Ive asked about free mods. Basically there's none. So Im looking to spend some money to get my stock Zuma to 50 mph or so.. 37~40 is just so slow..

What is the cheapest route?

Erika, to get to 60mph on 49cc what are all the mods you had to do?

From what Ive learned so far...
need a Next R pipe from Technigas. $149 .. or is ZX pipe any better?
malossi tci $69
replacement rollers. if stock is 6.5g and the one Provo sells are 4 or 4.5.. i will lose top end speed no? less weight is better torque but less top speed ?
Do I need to buy a Malossi Variater for 49cc set up? will it help with the top speed? the stage one kit for 229 sells a techno variator, which is not good. but i dont see any Malossi variators at provo.....

so are these it? 3 parts? pipe 150, tci 70, variator ?? (malossi)... to get to 50+ on 49cc motor?

I live in Chicago and there are no hills... I just want to keep up with traffic.
thanks
Yohei

[hungff77]

Vino is a smaller and lighter scooter than Zuma, therefore, a stage one kit can make it go really fast, the Zuma is much heavier than the vino, so it will take more parts/$$ to make it go fast.

for the pipe, tinman, as Erich said, the Next-R is more of a top end pipe. and it is a bridge pipe (for both 50cc and 70cc). If you think you may go 70cc later on, a Next-r pipe is better, the ZX is more of a 50cc pipe. I am sure it will give you better low end than Next-R.

My experience is that tunning is addictive, when you start adding a pipe and vario, you will want more power (for better acceleration and uphill) and then you will want a better cylinder...

Frankie

[yama916]

thanks erika and everyone else for the explanation.

SO i guess you guys convinced me to buy a stage one kit.

but i will ask for Malossi variator... if its the same price why not i guess!

Last couple questions... why doesnt the 1st stage come with a new main jets? it doesnt need it because its still a 49cc?

Zuma... ive read that CDI is keeping the zuma to 8000rpm max... even with this after stage one, you can get to 50mph? or do i need to buy a CDI on top of stage one...

thanks and Ill order these as soon as i understand fully!

yohei

[tinman]

Hi yama 916 , sounds like your in the same boat as me , but what pipe are you going with ?

[XPS1210]

to get to 50 mph...

you can get along with the Stage 2 kit from provo... basically you need to replace the variator (get a malossi one, not the technomoto one), 19mm carb, 70cc cylinder, exhaust pipe (any provo sells will work for this set up)...

I'd recommend getting a delta clutch as well so you don't worry about the stock clutch slipping...

basically you need to spend about $650 to make it hit 50mph...

Stage 2 plus a clutch, kevlar belt... you should be okay... also with this set up you don't need to mess with the CDI unless you plan on further upgrades...

o_o

[yama916]

Tinman, yep we seem to be asking the same questions.. but we are definetly on the right forum. Im going to take their advice and get the NEXT R pipe.. since eventually i do want a 70CC kit. :)

but 650 bux is too much for me now.. ill have to settle for stage one.

So i guess you dont need a CDI unless you plan on going fater than 50mph! :)

So with that stage one, ill remove the snorkel and maybe drill some holes and maybe put bigger main jets.... I hope all of this will work out!!!!

yohei

[tinman]

Hi jered, thanks for coming on board, you are the man when it comes to mods, so if a person was going to do a stage one with the malossi variator like you suggested and maybe a stage two down the road , what pipe would you use . and what clutch (two or three shoe and what brand) if you think we need it at a stage one . thanks tinman!!!

[hungff77]

Do get a delta clutch. The stock clutch, as in my own experience, the clutch is too thick and cause the clutch jam with any aftermarket torque spring. This will cause the Zuma stall at stop. An aftermarket clutch is a must (as my own point of view) Also, I will suggest a delta clutch. it gives you more room to adjust to fit your set up, this means save more money. An out of the box delta set up will be very good for stage one.

[str8dum]

If you think your are goin to do 50mph on flat roads with stock cylinder just by changing vario, exhaust, and clutch springs, you'll be the saddest man when you get it all installed and get no where close to that. 45 mph maybe. 50+ no way on a zuma. Some people barely get over 50 mph on a zuma with 70cc and carb. 60mph on a vino seems highly implausible as well unless they are geared way higher than than a zuma bc on a zuma to get above 55mph you need upgear kits. Good luck however.

[XPS1210]

get either the polini speed clutch or the malossi delta... either are fine... the delta clutch is harder to tune than the speed... since you have to completely disassemble to rear pulley components to adjust it... but it's still not that hard...

also... as far as pipes...

the RS has more low end torque and the R has more mid torque...

And I think that we are all under the understanding that you won't be going 50 mph with a stage 1 kit on a zuma... with a stage 2 kit... it's possible....

[Davey-boi]

Yeah, 60mph on a vino with only a stage 1 seems a lil stretched. The fastest I've ever gone is probably 53mph with the same setup plus a kevlar belt (a lil past the high beam light).

[Aviatrixie]

Hi Davey :)

I know it probably seems hard to believe, but when I had the medium weight rollers installed in my Technomoto variator I was able to get the speedometer needle to swing clear to the left of the oil indicator light on my speed dial. I have since installed lighter Malossi rollers ( the red rollers) because the acceleration was poorer than stock and the hill climbing ability was horrible. Now my speedo needle only goes to the middle of the turn signal indicator on the speedo dial on flat ground.

I did check my speedo accuracy with a stand alone radar unit that the police had set up locally before my stage one was installed but after my Vino was derestricted and had S1 tires installed, and at an indicated 40 mph the radar showed me at 39 mph, so if my speedo stays accurate well outside the calibrated 40 mph I should truly have been approaching 60 mph. I determined this by comparing the the radius of needle rotation outside the calibrated speedo range to that inside the calibrated range. I do know I was able to stay with the flow of traffic on a 4 lane with a posted limit of 55 mph.

Irregardless, what I say is only text on your monitor, so I can accept your skepticism. What I can do is post a picture of my speed showing my indicated mph while riding. Perhaps when I install my new Multivar I'll do a run with heavier rollers to show a picture at the higher speed. In any case, it's all fun. ;)

Erika

Yeah, 60mph on a vino with only a stage 1 seems a lil stretched. The fastest I've ever gone is probably 53mph with the same setup plus a kevlar belt (a lil past the high beam light).

[str8dum]

I guess more importantly, would you want to go 60 mph on a vino? Poor brakes and suspension. Not me. But still cool it goes that fast nonetheless.

[tinman]

Hi Aviatrixie ,you are one smart lady , how do you know all this stuff , anyway thanks for all the great advice !! Remember all advice on this forum we should consider it to be true !!! thanks Aviatrixie .So everyone ,the feeling i am getting is to use the malossi variator and the technigas r pipe for the best results on a stage one kit for a 04 zuma . right?

[XPS1210]

if you never plan on going past stage 1 then you want to get the RS... it's more torque driven than the R... IE: you'd get more from your 50cc with the RS...

if you plan on upgrading to the 70cc eventually then get the R...

And yes... get the malossi variator instead of the technomoto if you can afford the difference... (I think there is a slightly higher cost for the malossi from provo...)

[Lennox]

A rejet is cheap, and could only help as well........ but, yes that sounds good for a stage one!