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Not a fan of darksiding for number of reasons, but hey, free country, right? There was a topic somewhere in a darkside group or involving darkside group, one of the members crashed on Cherohala and was either dead or in bad shape, the rest had to go back and couple more crashed on the way down with pretty dire consequence, I know in the end it was at least one fatality and couple helicopter flights, and of course it was all about the tire choice, one side foaming at the mouths, claiming that it was the cause of the accident, other throwing all the "million rides did million miles"... I stay out, my opinion is "let them" but I'm 100% certain that long curvy road like Cherohala or Blue Ridge at moderate pace and on a heavy bike with car tire can cause issues... Not to mention the negative feedback of a square tire, I personally don't like the feeling, also don't care what anyone else does, so I could have been the darksiding and not giving a F
Anyway, S9 is on a back burner, bought CRF230L and that's our new scooter LOL, also winter is coming so I got 2 snowmobiles to prep. Now that would be a fun ride on 2 wheels, 150hp 2 stroke with a gnarly CVT!

haha...I always purposely avoid the 50cc forum section precisely because of threads like this....and then this morning I decide to take another look in the 50cc area....lesson learned!

Find it funny that scooter forum can be so snobbish, do you think 50cc scooters are for plebs?

Hey!

It may or may not be restricted by CDI, de-restricting usually requires cutting a wire, unplugging a wire or cutting a back side of CDI off with hacksaw...
Where are you located? I'm guessing you have a DC ignition and I have Naraku derestricted CDI for Yup/Dink/People, bought it for my Super9 but it has AC ignition so it didn't work.

I've seen a washer welded into exhaust near the motor acting as restrictor, but I can't remember what scooter it was.

Also as mentioned above Variator may be restricted, some have a ring that is removed, mine had a whole sleeve that I ended up replacing because it has a shoulder on it that keeps it from moving all the way in.

Also ALL CAPS no bueno

In case anyone reads these forums, here's an update: seems most of the earlier Kymco models have DC powered CDI (that's Direct Current , 12V from battery) including Super 9 and People 50 but my 2009 SP is a unicorn with AC power to CDI (Alternating Current, 30-60V direct from stator)

I would have guessed that something like that is a common knowledge in a Kymco community...

What it boils down to is how cost effective is it to heavily mod a 50 cc engine to get better performance? Honda in the 60's bult a 50 cc dohc Gran Prix entry that produced astounding power and won the class. Sochiro Honda dumped truckloads of ¥ on that project. Many, including me, think hot-rodding is great. Wonderful innovations result but it takes money.

Boils to this: you want to ride or you want to tinker? You want to ride, stick in a bigger engine. Make a "sleeper" with a 125 cc GY6. Or just trade for a bike with a bigger jug. Or if tinkering is it, go for it. But you gonna walk more.

Honda RC11X bikes got nothing to do with my objective (yes I know my GP motorcycles and Hondas racing history) I don't see how 50cc DOHC twin screaming at 20+rpm  mated to a 9 speed gearbox has anything to do with a single cylinder 2 stroke mated to a rubber band.
 I'm just trying to uncork my stock S9 so I can keep up with traffic.
Did I mention it's a 2 stroke? they are restricted to literally half the speed they are capable of.

If I have a desire for speed I will ride on of my many motorcycles or vintage scooters that are all faster than S9 can ever be.

I asked a specific question, Technigas vs Malossi pipe, clearly no one knows the answer.

I asked about reputable US suppliers... crickets...

But hey "use search function!"

I'm not a noob, been around scooters for 20 years, motorcycles 30+, just never had any interest in twist-n-go type until now. 15 years ago we had a shop next door and access to multiple parts sources, shop is closed, all the suppliers are gone... currently I am finding things on ebay (questionably cheap) Amazon (ridiculously overpriced) or overseas from sources I never heard of. I get my vintage parts from SIP but for some reason they do not sell Malossi parts to US customers.

Also I'm looking for main jet and I'm getting too many conflicting results M4, M5, M6... Brought the bike to our place up north and I don't have a garage or many tools up there so I want to get the right parts the first time and not have to take it apart 100 times trying to match a jet because I can't leave it disassembled out in the yard.

WOW, what a waste of time this forum turned out to be...

it sounds like someone has a 2 stroke addiction...I love it!

You can say that, got a fleet of smokers, I think my second bike ever was  Water buffalo (Suzuki GT750)

Tried the "speed control" CDI but it's dead, wire plugged in or not, no spark, quite disappointing. I'm in Maine amd spare CDI's at the shop in RI, will bring ALL of them up next week

Don't open that can o' worms again on here!  😂😂

I bought 3 CVT vehicles this year (Subaru, Sled and this S9) but have no practical knowledge on how the variator works, only a theory. I'm guessing there is a solid data on what happens when you change parameters, this got to be less complicated than 2 stroke tuning since there are only 3(?) variables: roller weights, spring contracting the weights and little springs in the back part, whatever it's called, looks like brake shoes. Those I understand set the engagement point, but the weight and spring on the front pulley I don't quite understand.