raising my scooter speed

[travler1]

Hello
would like some info on my 150cc scooter would like to get a little more speed out of it it does 40 45 some times 50 mph would like to get to 60 mph would putting a 115mm preformance vatiator and changing the rear gears to 15t do the job and witch variator rollers would be better 12g or 13g and can i use my standard belt its new also should i change the carb jet and put on a preformance exhaust and air intake, i had a 150 paparazzi scooter it did 60 right from the factory sold it i just did not like is looks bough this other 150 and its slower i do have some hills i have to travle nothing big or long but i dont want to over rev the scooter either can some one help me out
thanks

[imnts2]

Welcome to the site. I am still trying to find a way to get to 60 cheaper than buying a 250cc scoot. I think we are stuck. Lots of guys here will be glad to sell you parts but - but generally they are little opptomistic of my willing ness to spend a lot for a short lived fire cracker. Just take your time and read and read and read.

Cheers
lefty2

[travler1]

Hi lefty 2, thanks for the welcome yes i do know what you mean, have done a lot of reading i have contacted a machanic in the western states it was the old bandit sales company they changed names but the company is still the same, and the machanic there was a lot of help so was the machanic at scrappydog, they were both at the same opinion that the bigger veriator and changing the gear in the trans will do the job but one said to use 12g sliders and the other said to use 13g sliders i dont want to over rev the motor and also a fellow called allyoop who seems vary knowgable seems to think this should work also , but neither said any thing about the belt just trying to gather as much info befor i go to far i have worked and serviced many many motorcycles befor 450 range and up but never a 150 scooter, and as i said i did have a 150 popazzi that did run at 60 with no probblems, and i had a campus 50cc moped that did 45 so i know it can be done ill be mare than happy to pass along any and all info i get on this to you and well get it done at a reasonable price i see i dont get to many responces to this i would gess that all these other scootor guys dont know as much as they make off or think they do again thanks my frind for the reply
travler1
thanks

[Edmund]

Cheapest way to get anywhere from 6-10 mph more on your top end is put in Taller Tranny gears. 2up and 2 down so if your current gears are 13/40 go with 15/38 etc.. But do not go a lot taller if your motor is stock.
pete

[travler1]

thanks boontock really good info i sure will check on that again
thanks pete

[imnts2]

OK. lets get serious. You say 40 45 and sometime 50. What you need it to get it delivering 50 all the time. When you get it getting 0 to 50 in under 30 seconds then MAYBE you will be willing to sacrifice at the magnificent accretion for a little more top speed.

Is that a good first target?

if so how about some info. Miles? miles since oil change. Last time you did a compression test? what was the pressure? Lat time you adjusted the valves? what clearance? Last time you gave it a new plug? Lat time you read the plug?

Have you read the thread about GY6 issues?

Have you read the thread re 150 to 170 upgrade?

Have you read Gregs thread about EFI kit on a 50CC?

Did I give you enough homework?

Questions?

Welcome again.

I did not ask you to spend money for parts. Maybe a tool or two.

Cheers

lefty2

[Edmund]

Ok lets figure out WHY your 150 is not running at LEAST 50mph all the time.
Take you CVT cover off and mark your Variator with a marker about 1/2 x1/2 inch and run the sucker at Wide Open Throttle and see how much of a mark is left on the Variator. Do that first and let us know, ALso if you scoot has a TACH what RPMS is it running at Wide Open Throttle. That is also important.
pete

[imnts2]

peter. It is not running good. 40 45 sometimes 50. If it is not screaming, it is not gearing.

[terrilee]

my totally stock 150 runs 50-55 all day.
i can 65 if i wanna
I DONT WANNA
but there have been times -to get away from cagers
i have WOT and when safe looked down and im doing either 60
or 65 and rpms are only like 6.75 or 7.0

so i guess i have a gooooot running stock scoot,


THANKS CHRISSY

[imnts2]

Hey Terri. Give em hell. Is that chinameter indicated speed? or have you reasone to belive it is acurate? If it is chinmeter it is almost certain to be 10% high. Gpt a way to pace it? And it would not surprise me if it is a kila gauge with a speedo face. If so 50 is only 31. I can't comfortalbe ride 50 with out a face shield. Even in our 70 degree weather.

When new pics?
Cheers
lefty2

[terrilee]

lefty

i have had her clocked on gps
i have also
and this is funny,
had a cop i know follow
me up the main road ,RT. 30,
for 5 miles my china scoot is off
but its off the other way.
it says im doing 45 the cop says im doing 50
and we did this 3 times going up the road and back

i have read others china gauges are off
sometimes a bit sometimes alot
mine runs the other way.
i go faster than it reads

[skuttadawg]

Get an Echarm it will hit 70 till limiter kicks in with room for more bone stock

[Edmund]

It could just be the gram weights that are in there:
But that is why knowing the RPMS at WOT is important and here is the reason:
If the RPMS do not climb to at Least to 7K the weights are to heavy and he needs lighter weights to get the RPMS up for more speed.
If the RPMS are HIGH then the weights are to LIGHT and never are able to push the belt up high enough on the Variator for top end speed.
That is why I am asking for RPM numbers a tach on any motor is very important, it is like a crystal ball, tells you how your motor is running and whether something is happening or not happening.
pete

[larry001964]

I very much agree about having a tach on a scooter, can't believe they sell some models without one, but some models don't, his may not have a tack. On many you can calibrate them to. The adjustment is inside the instrument cluster.

[imnts2]

Right. NIce to have a Tach for trouble shooting. A shop tack is a nice substitute for a dash unit.
Has anyone tried an old fashioned tack/ dwell meter that worked fine with the point system coils on a CDI system?
Getting to the problem here, I have yet to see a 150 cc run out of RPM at 40 - 45 or even 50. More like 55 plus a little. Terrilee's is what a right running 150 runs like. She might gain a little top end with some changes in the CVT system at the espensed of acceration.

Cheers.
lefty2

[imnts2]

skittadawg. I love it when you brag about your ECharm 150. Have you ever tried a GPS speed check? I just sayw a new one throught a Miami dealer for well under 2G. Temps me. Is there anything you have seen in that size you like better or even equal.

Cheers

[Edmund]

A stuck Variator will do that, it will limit the rpms and speed. Had one that the boss got so hot it would not allow the variator to push out all the way and the most the scoot would do is 40mph and no higher than 6000rpms.
pete

[imnts2]

Sure will. that us why U I wanted to do a little maintenance. So will an engine not running goo. Restricted exhaust, bad plug, ign mod screwed up, valves tight carb lean or rich. Wait till something screws up in your EFI. lots of stuff can really screw that up. I think you need a littel higher gearing to take advantage of your power. From my fooling around, a lot of carburated 150's china scoots need something done with their valves, fuel systems or ignition. Many of them are really cheaply built. I know my 150 is.