VERY VERY SLOW TAKE OFF By datonamanmike (Read 1,013 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




Read more: scooterdoc.proboards.com/index.cgi?board=talk&action=display&thread=8259#ixzz2aTiRgD61

[phildoe]

I just read about your moped having slow takeoff issues and from what your saying it seems that your CDI might be set to a backed off timing if it's an adjustable one. Sometimes before a CDI goes they can act that way but it depends on a few things, One of which may be due to valve timing or even to much fuel from the carb. Carefully take it apart and clean it all out with WD40 and soak all the parts in a tub of it, then check to make sure there is no gunk or sediment built up on the needle of the float vale, if there is sediment then i am willing to bet you might not be getting the right fuel mixture. If it's all clean and i mean the whole carb then make sure the throttle valve and diaphragm are intact and not cracked. if that does not help get back at me here or one of the other scooter guy's. ask others for advice to. Best of luck.

[Bashan]

I agree with Phildoe, clean the carb with attention to the low speed jet. That controls the take off fuel supply.

[Alleyoop]

It is your SMALLER REAR SPROCKET that is causing the DOG start up, you have it geared for TOP END SPEED and you went to small on the rear sprocket which will cause very slow take offs. To pull very tall gearing the motor has to have a lot of power.

Now you could get some better pull IF you go up on the front Sprocket(More Teeth) but on those mopeds you can only go up 1 -2 teeth more on a sprocket because the casing around the Front Sprocket will not allow a bigger sprocket to fit.

Some have even ground down the casing around the front sprocket to be able to fit a bigger sprocket.

Tell me what size Sprocket(TEETH) was on the rear and what size(TEETH) you dropped down to.
Alleyoop