VERY VERY SLOW TAKE OFF By datonamanmike (Read 2,706 times)

[datonamanmike]

HELLO FRIENDS
I have a 2012 SSR lazer5 moped with a 72cc kit
I have smaller rear sprocket no limit CDI
this is it highstylemotoring.com/MOPED.html
if you cant click on the link copy it into your browser
the bike runs very well I realy like it
it runs about 45MPH or so the speedo says im going
50MPH but I know better

my problem is it takes off like a snail I mean realy slow
once it gets to about 3000RPM then picks up real good
from zero to 3000RPM snails pace im having to pull over
into the bike lane (when there is one) to let cars by
what can I do ....a bigger sprocket in the front ??
if yes can some one point me to some one that sells em
iv just hit 500 miles so im going to adjust the valves
and check the timing
the carb has been properly re jetted and im running the
stock air box
the moter is just like a Honda clone motor horizontal
except the motor has pedals
thanks for all the help in advance
one last thing to add it is a 4 stroke motor

[kz1000st]

This may not be what you want to hear but here's the problem. The Lazer 5 has a two speed gearbox. Slow and faster. If I recall correctly you have to stop and put it in one gear or the other. Imagine a five speed gearbox on a car. Think about how it would accelerate stuck in fifth gear. It would creep off from start, slowly build speed and eventually reach top speed. Here's the other side of the coin. Same engine by the way.



It has four speeds, foot shift and a semi automatic clutch. It takes off well and builds speed (about as fast as a 50cc will) and runs 45 to 50 mph once in fifth (oops, 4th) gear. Having a moped is convenient but is built to be used in an urban setting where running slow is the norm. Bigger sprockets, big bore kits and hot CDI won't overcome using a single gear (not a variator) to run from start to top speed. It's a great moped, it will bring you hours of fun but it won't give you whiplash.

[datonamanmike]

yes KZ thank you that's what I thought
I used to have the one you picture it was a baron motor cycle
I converted it like yours but with a clutch and foot rear brake
loved it could do wheelies kept up in traffic went like 60
but here in florida a moped must have pedels
I put like 3 motors on it first a 90cc then 110cc and it still runs
with a 125cc my nefew has it

[kz1000st]

Sorry to deliver the bad news. Man, 72cc! If I was running that cylinder I'm thinking that 55 mph would be attainable. I won't tamper with what I got though. It was more than good enough for this.

scooterdoc.proboards.com/index.cgi?board=talk&action=display&thread=8209

and it gave me 133 mpg while doing it. Have fun on the Lazer, I've seen videos of it in action and it looks like fun.

[Alleyoop]

Yep if its a TWO SPEED AUTOMATIC then to get more UMP starting then you need a BIGGER REAR SPROCKET not a smaller one. But then again that will then limit your top end speed. So you may need to find a sprocket in between so that you will not loose to much top end but gain some low end power.
Alleyoop