Smooth Boss? and roller weights!

[heystevephan]

Also, I'm trying to de-restrict my scooter and I know I need a smooth boss but I can't seem to find one.  Do you know what size boss I need, from what I can gather its a 38mm right?
Do you know where I can buy one that fits that isn't too expensive. The closest one I could find is like 30 dollars shipped to US. http://www.ebay.com/itm/UNRESTRICTED-VARIATOR-DRIVE-BOSS-for-KYMCO-Grand-Dink-50-Super-8-Nexxon-Cobra-50-/260881235634?pt=UK_Motorcycle_Parts&hash=item3cbdbbbeb2

 
Lastly, In terms of roller weights, I want to start off with 1g lighter weights, what do you guys suggest? What is the stock weight on the super 8 2T?  Where should I buy it? I don't really want to spend too much money.

Although I know stadium yamaha has most of these parts, but their shipping is 13.50 even if I buy something small (which are the parts that i'm interested in) so I would like to avoid them.

Thanks so much!!

[Pimpy1]

That is the correct stock size boss. You will get it faster from e-bay over seas than stadium yamaha, they are very slow. Call the guys at http://www.partsforscooters.com/. They usually have them in stock and they ship out the part the next business day after order from Florida. Will be cheaper I'm willing to bet.

I tried quite a few different roller weights and found going up to 9gram worked better than going lighter. The CDI has no limit. All the restriction in in the exhaust and the carb and intake.

[heystevephan]

http://www.partsforscooters.com/Drive_face_spacer_qmb139

It should be this spacer am I right? It says 4 stroke but it should be the same right?

[Pimpy1]

That's the correct size. Told you it would be cheaper. $2.50 + about 5-$6 shipping. If your order today they will probably ship Monday. 38mm x 20mm. You can call Monday morning to make sure.