American Kymco Super 8 50cc 4 stroke

[streido]

Most sellers list the scooters it fits at the bottom of their pages. You can also google for "gy6 race variator" and pick the shopping tab, you will find the malossi multivar kit there. I wanted that but was nervous to splash out so much so tried the cheaper chinese race variator to see how it worked out, im happy with it on my scoot, made a good improvement.

This is the one I fitted in mine, http://cgi.ebay.co.uk/RACE-VARIATOR-GY6-50-KYMCO-BAOTIAN-LIFAN-Chinese-/300540989339?pt=UK_Motorcycle_Parts&hash=item45f9a38f9b#ht_1861wt_685

[sidthesloth]

The black dust is from belt and clutch friction material wear. You won't need to replace the drive face, only the variator, (or moveable drive face). The variator doesn't have splines as it slides along the machined sleeve (drive boss).
 This will come with the variator, ramp plate slides and rollers. As streido said, the sellers will list what model they will fit.

[ianmac]

Great, thank you both for the information.
I think I will go with a new variator and some 6g Rollers.
I want to find somewhere local to me though, scooter assasins shipped my main jet and air filter and it took about 2 weeks.... much longer than I can take!

[streido]

As long as you check it fits your scooter then you should be fine. If they ask yours is a GY6 - 50, 4t , 139QMB engine.

Agree about scooter assassins, the wait is a nightmare but the prices are usually not too bad for some non-urgent stuff.

Hope it works out with the variator, keep us posted how it does.

[sidthesloth]

You blokes are spoilt, 2 weeks is the norm. I am waiting on an item from America, 3 weeks gone now.

[ianmac]

Just put the stock airbox and filter back on....
Battery is shot so its kick start every time which is a PAIN!

Going to look for a battery tomorrow.

Inlaws are here so they are riding it around, I will have to report on the top speed later.
Sounds quiter again, so that should be a good sign.

3 weeks..... I wouldnt make it.

[sidthesloth]

Sometimes you don't have any choice. Get your inlaws to go for a top speed run.

[ianmac]

Latest update....

Put the airbox back to stock and the thing would get to about 20mph and then bog down.

Took out the actual filter and put the box back on and a little better.
Took off the airbox cover and a little better, but still couldnt get over 25mph before bogging down and I had to "burp" the throttle to get it there, otherwise 10mph it would bog down.

Figured that it had to be starving for air so I took everything off and ran without an airfilter and everything was great!

Went to my K&N Filter and back up to 35mph....
Not ecstatic, but at least I figured some stuff out.  

Is there any chance that there is some restriction that I am missing?  perhaps on the exhaust?
Just doesnt make sense that I have increased the airflow and the gas and not gotten any faster

Thanks for the help, I'm going to order a race variator and rollers tomorrow.

In the meantime the wife has been driving my 150 so much while hers is out of commision, im worried I may not get it back!

[sidthesloth]

From that, it sounds like you are too rich, maybe try a smaller jet.

[ianmac]

Trust me, I wanted to, however that appears to be the only one for my carb out there... #88 from Tapai Scooter Assasins.
All the rest have a different thread.

[streido]

Your Kymco dealer should have one, if hes local? Thats where I got mine.

[ianmac]

No such luck... they are a "motorcycle shop" that bought some leftover stock from a powersports store that was going out of business.
They dont support anythign for the Kymco.

What weight rollers are you using in your scoot?

[ianmac]

Im starting to think I should have named this thread Kymco Super 8 Nightmare.

So I went to take the battery out today to go and get a new one, and being the responsible citizen I am I decided to check the voltage on the battery first.
Im getting 12.1V

But yet when I put it back in the scoot it wont turn over....

Anyone have any idea's?  Could it be the starter already?7

104miles on it.

[ianmac]

Alright... swapped the batteries with my 150cc and no problems, except last night I started noticing the lights dimming again as I was slowing down... so I hooked up the battery tender.... I think the alternator cant keep up with the battery or isnt working properly.

I also got my impact wrench and 5g slider weights...
I changed the slider weights and cleaned off the variator.... I noticed that its quicker off the jump now, but I am still stuck at 35mph and 37 if I tuck down under the windshield..... frustrating..

Last attempt is going to be a #85 main jet, I think the #88 is too rich... Havent checked the plug yet but its worth a shot
I can get a Keihin #85 for about $12.00 shipped

Stock was #80 I went to #88 cause it was the only one I could find that someone would guarantee would fit.

[ianmac]

I feel like Im talking to myself here, but someone may read this and get some info from it.

I replaced my stock 6g rollers (actually 6.5 because it was 39g for 6) with 5g sliders

Take off seems better, I can actually feel it pushing me back around 15-20mph but 35 is all I can get... .if I tuck below the windshield I can get 37.

Still debating on the variator, but I have a feeling it will just be a waste of money.  Found a generic? Ruima for $69 and a main jet on provscooter.com
Or I can get a Polini variator for $85.00 from enviromoto