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150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum

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Old 11-30-2018, 12:15 PM
wildbob wildbob is offline
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Join Date: Aug 2013
Location: Newburyport, MA
Posts: 571
Default CVT/DR Pulley washers

Ok, so the DR Pulley variator comes with washers that I never used on my stock GY6 crank, but the KDU crank I'm using on my stroked trailmaster engine seems like the splines are longer, so I need to either use the washers after the boss (as directed in the optional instructions) or some after the fan as I can't bolt down tightly to the fan without running out of threads and hitting the splines.So, would I be better off keeping the variator fan plate as snug as possible (no washers) to the boss and adding washers to cover the end of the splines after the fan plate and crank down the bolt on those? I think the thread locker I was using was a bad tube too, as I didn't have too much issue spinning of some bolts i tested it on. I'll be using loc-tite red on this bad boy now.
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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
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