Engine start and battery charging system of motorcycle Yamaha XVS 1100 Drag Star (1998-2008)

Ignition system troubleshooting
The ignition system fails to operate (no spark or intermittent spark). Check: 1. main and ignition fuses 2. battery 3. spark plugs 4. ignition spark gap 5. spark plug cap resistance 6. ignition coil resistance 7. pickup coil resistance 8. main...

Electric starting system troubleshooting
The starter motor fails to turn. Check: 1. main and ignition fuses 2. battery 3. starter motor 4. starting circuit cutoff relay 5. starting circuit cutoff relay (diode) 6. starter relay 7. main switch 8. engine stop switch 9. neutral switch 10....

Removing and disassembling the starter motor
Order Job name/Part name Quantity Remarks Removing the starter motor Remove the parts in the order listed. 1 Starter motor lead 1 2 Starter motor assembly 1 For installation, reverse the removal procedure. Disassembling the starter motor Disassembly...

Checking the starter motor
1. Check: commutator Dirt → Clean with 600 grit sandpaper. 2. Measure: commutator diameter (a) Out of specification → Replace the starter motor. Min. commutator diameter: 27 mm 3. Measure: mica undercut (a) Out of specification → Scrape the mica to...

Assembling the starter motor
1. Install: brush holder (1) Note: Align the tab (a) on the brush holder with the slot in the starter motor rear cover. 2. Install: starter motor yoke (1) end bracket (2) starter motor front cover (3) Note: Align the projection @on the front cover...

Charging system troubleshooting
The battery is not being sharged. Check: 1. main fuses 2. battery 3. charging voltage 4. startor coil assembly resistance 5. wiring (of the entire charging system) Note: Before troubleshooting, remove the following part(-s): 1) battery cover 2)...