Hi Tybic,
I did my 58.5 Big bore kit myself. I think it's the biggest you can go without having the crank case machined. I'd never taken an engine apart, so if I can do it anyone can. I did so many upgrades at once that I can't tell you the difference the BBK will make, but more CC's = more HP. If you decide to go big, make sure you have a pro machine your cases for you. EDIT: You'll need to re-jet your carb..
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2013 Trailmaster XRX 150 Type 86 stroker
Taida 4V head with 23/22mm valves, forged 4V piston,Taida 62mm jug,forged Taida 8200 KDU stroker crank, Koso high-flow oil pump, Taida case half w/ oil cooler ports, Setrab oil cooler,TrailTec Vapor, Mikuni VM26-606, aluminum 30mm intake, Uni filter, aluminum stack, Hammerhead racing exhaust, MotoRio adjustable CDI/HO Coil, Iridium plug, Full Dr Pulley CVT kit w/ 16g sliders, JD's Mikuni slide kit
2014 Kandi 90B
Last edited by wildbob; 07-14-2015 at 07:34 PM.
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