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07-26-2014, 10:27 PM
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#2 |
 
Join Date: Aug 2013
Location: CANADA
Posts: 5
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I bought a 47mm bbk off ebay from scrappydog last year and I can't say anything bad about it. I've put over 600 miles (1000 km) on it with no problems. I also upgraded my carb and airfilter at the same time. I can't speak for other kits but scrappy's is working well for me.
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'09 Chase 50 47mm BBK kit Stock head Stock Variator 6.5g Sliders Gates belt 729-17.5-30 K&N Style Cone Air Filter 18mm Keihin carburetor #88 main jet #35 idle 43 mph gps no wind 
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07-29-2014, 06:19 AM
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#4 |
 
Join Date: Jul 2011
Location: Connecticut
Posts: 493
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Dwint, a BBK is not going to give you the performance gains you imagine it will.
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2011 Roketa MC-23-150 4T 150cc 157 qmj 24mm carb w 115 main jet and paper cone air filter Manual petcock w Tygon fuel lines Scrappy Dog Scooters Retro-slash stainless straight-thru exhaust RED spring clutch Adjustable CDI (brand unknown, it's blue and red and works great!) KOSO high performance variator w 12g sliders Gates Powerlink 835-20-30 belt GPS verified 65mph on flats. |
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08-01-2014, 06:04 PM
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#5 |
Join Date: Feb 2014
Location: las vegas
Posts: 100
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Some kits are bad quality pistons, the piston is actually hard to push through the cylinder, scrappy dog, and my kits are good quality, it took us a lot of trial and error to find them
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2012 Jonway X 44mm Hoca crank 52mm Hoca big bore MMS big valve head raised ports, polished, milled .023 Hoca 26mm carb NCY titanium valve springs NOS wet nitrous system Holley fuel pump MMS variator Naraku CDI HT coil 4' Wheelie bar MMG stainless slip-on exhaust NGK "11" spark plug UNI filter 2014 Icebear Maddog too much to list http://mmsscooters.com |
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