If you end up replacing the vacuum petcock with a gravity feed, don't forget to get a rubber vacuum cap to block off the port on the intake (or wherever you were getting vacuum from). I found the vacuum petcocks to be problematic from the get go, and and the carbs not much better. I bit the bullet and got as mikuni carb with a manual choke.
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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; 06-19-2019 at 08:41 AM.
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