Post by tortoise on Oct 23, 2009 17:34:13 GMT -5
Objective was more mid-range acceleration . . NOT increased top speed. Gained around 5 MPH on hills (and into headwinds) with installation of a NCY variator and Dr. Pulley 6g slider weights (original rollers were 6.5g). If you choose replacement rollers, make certain that they are oriented properly.
With the scooter parked outside (for proper ventilation), and wearing eye protection . . inner case rubber belt residue was flushed off with several applications of Walmart carb cleaner. Drippings were collected in an oil-change pan filled with crumpled-up newspaper to aid evaporation of this very volatile liquid.
Per page 4 of this manual, the torque specification for the left crankshaft nut is 55 Nm . . which converts to 40 foot pounds. Over-torquing this nut may strip the crankshaft end threads (or possibly break off the threaded tip). A 17mm socket is required . . "Lefty Loosey, Righty Tighty". Before torquing, compress rear clutch to loosen front variator belt . . as demonstrated in this video.
Secured variator with a holding tool, applied blue threadlocker to crankshaft threads, and tightened nut with a torque wrench (purchased from ToolTopia).
AutoZone sells an $11 beam-type torque wrench. One alternative method of securing the variator is using a large screwdriver, and placing a spacer block above it during removal and under during torquing.
Home Depot sells a $15 Husky Stubby Tool Set which includes a 17mm socket (also fits the oil drain plug). A supplemental 3/8" drive universal greatly increases the applications of this set.
With the scooter parked outside (for proper ventilation), and wearing eye protection . . inner case rubber belt residue was flushed off with several applications of Walmart carb cleaner. Drippings were collected in an oil-change pan filled with crumpled-up newspaper to aid evaporation of this very volatile liquid.
Per page 4 of this manual, the torque specification for the left crankshaft nut is 55 Nm . . which converts to 40 foot pounds. Over-torquing this nut may strip the crankshaft end threads (or possibly break off the threaded tip). A 17mm socket is required . . "Lefty Loosey, Righty Tighty". Before torquing, compress rear clutch to loosen front variator belt . . as demonstrated in this video.
Secured variator with a holding tool, applied blue threadlocker to crankshaft threads, and tightened nut with a torque wrench (purchased from ToolTopia).
AutoZone sells an $11 beam-type torque wrench. One alternative method of securing the variator is using a large screwdriver, and placing a spacer block above it during removal and under during torquing.
Home Depot sells a $15 Husky Stubby Tool Set which includes a 17mm socket (also fits the oil drain plug). A supplemental 3/8" drive universal greatly increases the applications of this set.
