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| + | ====== REF: Gears, Sprockets, Belts ====== | ||
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| + | ===== Sub-Documents ===== | ||
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| + | * . . . [[techtalk: | ||
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| + | ====== Caution: Aluminum Drive Sprockets ====== | ||
| + | Some folks have had a problem with aluminum aftermarket pulleys that wear excessively. It may be an occassional fault\\ | ||
| + | in the anodizing or something more prevalent. Simply be aware of this potential problem. ((see Scuba10jdl' | ||
| + | {{techtalk: | ||
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| + | ====== Rear Pulley - Replace/ | ||
| + | SuperMax Belt Drives | ||
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| + | SuperMax produces belt drives, polyurethane pulleys and parts made to order out of a small facility in Cottonwood, Arizona. In addition to replacement parts, they also offer a refurbishment of rear belt drive pulleys. | ||
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| + | Advertising info: SuperMax is proud to offer the worlds only option to repair worn out metal rear wheel pulleys (as shown on left). SuperMax can replace the teeth on most factory and aftermarket 61, 64, 65 and 70 tooth rear wheel pulleys, increasing their life span . . . indefinitely! SuperMax can remove the old teeth from your old pulley and overlay new proprietary "space age" poly teeth on your pulley to retain your current pulley design. SuperMax also makes many specialty drives, including final drive kits for chain drive FXRs and FLTs, final drives for Sportsters and big twins, as well as super light tranny pulleys. | ||
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| + | (Reference from https:// | ||
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| + | Website - www.supermax.net - 928-649-2836 | ||
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| + | ====== Chain to Belt Conversion Kits ====== | ||
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| + | **40110-89 KIT** - HD offered a 4-speed chain-to-belt conversion kit (1986-1990 models)\\ | ||
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| + | **40111-91A KIT** - HD offered a 5-speed chain-to-belt conversion kit (1991-1992 models)\\ | ||
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| + | See a chain-to-belt conversion by ' | ||
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| + | ====== Belt to Chain Conversion Parts ====== | ||
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| + | **PBI Sprockets - Chain Drive Offset Sprocket #280** is compatible with 1991-2006 Sportster models\\ | ||
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| + | Website - http:// | ||
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| + | ====== Gear Indicator Correction (with Powervision) When Changing Gear Ratios ====== | ||
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| + | This example (which should apply more widely) is based on a 2012 883 Superlow that was converted to a 1250 with a different Primary Engine Sprocket and different final drive belt sprocket. These changes altered the calculation required to accurately display the proper gear. The recalculation was entered into a Powervision engine tuning unit. | ||
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| + | **Fixing Digital Gear Indicator** - as reported by cliffm of the XLForum((posted by cliffm https:// | ||
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| + | My most recent modification to my 2012 Xl883 superlow was installing V-Twin Power Sta-tor Ring w/ | ||
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| + | This obviously trashed the ECM's ability to properly interpolate the RPM of any selected gear. Having a mated Dynojet Power Vision I attempted to correct this. After several attempts I succeeded and want to share this, as it's applicable to all ECM controlled Harley' | ||
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| + | First, you must have the bikes " | ||
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| + | Then you need to know the " | ||
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| + | In my case, I had almost the lowest, at 34/57 primary and 29/68 belt with 3.93 overall.\\ | ||
| + | This meant:\\ | ||
| + | • 1st gear was 10.44 and a gear setting of 0.22119\\ | ||
| + | • 2nd gear was 7.463 and a gear setting of 0.31063\\ | ||
| + | • 3th gear was 5.5310 and a gear setting of 0.4168\\ | ||
| + | • 4th gear was 4.5840 and a gear setting of 0.50331\\ | ||
| + | • 5rd gear was 3.9310 and a gear setting of 0.58687\\ | ||
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| + | The Primary swap to 38/57 primary and 30/68 belt, the new final is 3.40 A +14% increase. Re-calculating each gear and comparing to original provides the difference to “increase” my gear values for the ECM to interpolate the RPM/Gear selection display. | ||
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| + | • 1st gear now 9.004 (+14.7810%) with gear setting “increased” to 0.25388\\ | ||
| + | • 2nd gear now 6.431 (+14.4948%) with gear setting “increased” to 0.35566\\ | ||
| + | • 3th gear now 4.784 (+14.4838%) with gear setting “increased” to 0.47717\\ | ||
| + | • 4th gear now 3.965 (+14.4812%) with gear setting “increased” to 0.57620\\ | ||
| + | • 5rd gear now 3.40 (+14.4864%) with gear setting “increased” to 0.67189\\ | ||
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| + | The VSS value in PV menu influences this as well, but I’m assuming you all have already dialed that in to correct for any tire diameter changes you may have performed. My gear selection is now spot on. This approach works for all Harley’s with ecm gear interpolation values. | ||
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| + | The reason you can’t just copy from you buddies configuration is variances in OEM tire size configurations and primary/ | ||
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