Great to be here! Suggestions on first mods??

[xxwoodmanxx]

Good afternoon! New member here from central OH. I just took the plunge and traded for a 2011 Sunny DF150STD. Absolutely love the thing, especially since it's able to start right up on the first kick in cold weather! (battery is dead, hence the kick-starting)

A little background,.....I've been into motorcycles now for a number of yrs. My 'forte' is Pre-'98 Suzuki Katanas and GSX-Rs, as I am so familiar with the wiring and layout after owning them for over a decade now. I've done everything from rebuilt/re-jetted carbs to swing-arm swap-outs.

As for smaller cc based motor experience, I raced nitro-RC as well as large-scale (25-30.5cc) 2-stroke off-road for a long time, too. I've port-matched, grinded/polished combustion chambers and intakes, smoothed out welds in exhausts, yadda-yadda. However, this is my first time tackling single-cylinders w/ valvetrains.

I love this little scooter and have some questions as to what modifications I would like to do in the not-so-distant future.

First, what are some of the best bang-for-your-buck upgrades for this GY6 motor? Say, if you had a budget of $150 to spend?

Second, anyone know if I have an AC or a DC CDI??

What are some zero-expense tweaks I can do to the stock motor for right now?

Thank you all for any help you can provide. I definitely look forward to sticking around for some time to come. =o)

[Scooter Elements]

Welcome

What i have seen is most people do the simple better ignition coil, spark plug and CDI. its one of the most common things people do. something that is cheap that people like to do is test out different roller weights to see which work best for you for better acceleration and top end speed. BTW if you just got it do the oil change, gear oil change, spark plug. best things to keep your motor healthy

[duesdeceptor]

I have been wondering the same thing with my newly purchased moped, from what everyone has told me so far you can buy a big bore kit!

[inuyasha]

Feb 16, 2013 14:45:25 GMT -5 duesdeceptor said:

I have been wondering the same thing with my newly purchased moped, from what everyone has told me so far you can buy a big bore kit!

Hi
Yes indeed
Thats what i have done with the 95cc bbk redstreak i showed you in your thread
She started life as a 50cc and then i did some mods
She has a Hoca 44 mm stroker crank,NYC A9 performance cam, Dr pulley clutch , variator and 8.5 gram sliders 1,500 rpm clutch and torque springs . racing cdi, gears are 17/49 with a NYC 85 cc bbk and 50 mm head ported polished and milled to raise compression. With an Dellorto 20 mm carburator with 88 main jet and an after market exhaust.
She now has excellent off the line acceleration and a top end of 55 mph at 8,500 rpm
Take care and ride safely
Yours Hank

[xxwoodmanxx]

Thanks for the replies! Guess I will have to better investigate whether I have an AC or a DC CDI so that I know what to get. Is there a way I can tell, at a glance???

[edfr]

If the 2 Plug on the CDI only has one WIRE on the bottom it is a DC CDI, the real test is take a VOLT METER or A LIGHT TESTER and TURN ON THE KEY and touch the Bottom wire on the TWO plug on the CDI and if it Registers 12V or the LIGHT TESTER LIGHTS up it is DC.

If Not it is an AC CDI.
Lefty

[xxwoodmanxx]

Awesome! I will go and try that right now! Thx!

[xxwoodmanxx]

Ok, mine read 0 vdc with the key on, so that tells me it's AC CDI. I also researched and found that the dimensions on the AC CDI are usually smaller (2.75" length) vs. that of the DC CDI (around 3.5" in length), and mine is the smaller dimension.

So I will pull the trigger and get myself an AC CDI + HEI coil + Iridium spark plug pkg. =o)

[edfr]

Great, but do not go by the size some performance AC CDIs are just as big and some even BIGGER than a DC CDI. Best is always to test for 12v which means it gets the VOLTAGE from the Battery.
A scoot with a DC CDI and the battery goes low or bad your scoot will not start.
If your scoot has an AC CDI you can actually take the battery out and start it with your kickstarter if it has one. But if it is DC your out of luck if your battery dies.
Lefty

[xxwoodmanxx]

Got it, mine's definitely AC. I also saw that you can reference the 3 or 4 wires in the 4-pin plug will tell you, or 1 or 2 wires in the 2-pin plug is a dead giveaway as well. Thx