Ignition and Electrical Systems (all models)

General
Battery
XL600R
Type 12V, 3Ah (amp-hours)
Specific gravity See Chapter 1
XR650R
Type 12V, 8Ah (amp-hours)
Specific gravity See Chapter 1
Fuse rating ยท
XL600R 10 amps
XR650L
Main fuse 20 amps
Other three fuses (ignition,headlight,speedometer/tail/marker lights) 10 amps
Charging system voltage 13.7 to 15.3 volts AC
XL600R, XR650R
AC regulator voltage
XL600R
1983 through 1986 13.5 to 14.5 volts at 5000 rpm
1987 13.7 to 14.2 volts at 5000 rpm
XR600R 13.5 to 14.5 volts at 5000 rpm
XR650L 14.7 to 15.5 volts at 5000 rpm
XR650R 13.5 to 14.5 volts at 4500 rpm
AC regulator resistance (XR600R) 1 to 90 k-ohms
Alternator stator coil resistance
XL600R
Charging coil 0.95 to 1.29 ohms
Lighting coil 0.4 to 0.55 ohms
Exciter coil 230 to 320 ohms
XR600R
Exciter coil
1985 through 1990 230 to 320 ohms
1991 on 50 to 200 ohms
Lighting coil
1985 through 1987 0.44 to 0.60 ohms
1988 on 0.1to1 .0 ohms
XR650L
Charging coil 0.2 to 1.2 ohms
Lighting coil , Not specified
Exciter coil Not specified
XR650R
Exciter coil 50 to 200 ohms
Lighting coil 0.1 to 1.0 ohms
Pulse generator resistance
XL600R, XR600R 360 to 440 ohms
XR650L 423 to 517 ohms
XR650R 180 to 280 ohms
Ignition coil resistance (at 20-degrees C/68-degrees F)
1983 through 1987 XL600R
Primary resistance 0.1 to 0.3 ohms
Secondary resistance
With plug cap attached 8500 to 11,000 ohms
With plug cap detached 3700 to 4500 ohms
XR600R
Primary resistance 0.1 to 0.3 ohms
Secondary resistance (with plug cap detached)
1985 through 1987 (with plug cap connected) 7400 to 11,000 ohms
1988 through 1990 (with plug cap detached) 7400 to 11,000 ohms
1991 and later (with plug cap detached) 2000 to 4000 ohms
XR650L
Primary resistance 0.19 to 0.23 ohms
Secondary resistance (with plug cap detached) 6500 to 9700 ohms
XR650R Not available
Ignition Timing
XL600R
At idle (F mark aligned with index notch)
1983 models 6-degrees BTDC @ 1200 rpm
1984 and later models 11 -degrees BTDC @ 1300 rpm
At full advance 31 -degrees BTDC@ 4000 rpm
XR600R
1985 through 1987 models
At idle (F mark al igned with index notch) 11-degrees BTDC @ 1300 rpm
At full advance 31-degrees BTDC @ 4000 rpm
1988 and later models
At idle (F mark aligned with index notch) 6-degrees BTDC @ 1300 rpm
At full advance 31-degrees BTDC @ 3500 rpm
XR650L
At idle (F mark aligned with index notch) 8-degrees BTDC @ 1300 rpm
At full advance 28-degrees BTDC @ 4000 rpm
XR650R
At idle (F mark aligned with index notch) 6-degrees BTDC @ 1300 rpm
At full advance 31 -degrees BTDC@ 3500 rpm

Spark Plugs (all models)

XL600R, XR600R and XR650L
Type
Standard NGK DPR8EA-9 or NO X24EPR-U9
Extended high speed riding NGK DPR9EA-9 or NO X27EPR-U9
Cold climates (below 5C/41F) NGK DPR7EA-9 or NO X22EPR-U9
Gap 0.8 to 0.9 mm (0.031 to 0.035 inch)
XR650R
Type
Standard NGK BKR7E-11 or NO K22PR-U11
Extended high speed riding NGK BKR8E-11 or NO K24PR-U11
Gap 1.0 to 1.1 mm (0.039 to 0.043 inch)
Ignition timing full advance
XL600R 31-degrees BTDC @ 4000 rpm
XR600R 31-degrees BTDC@ 3500 rpm
XR650L 28-degrees BTDC @ 4000 rpm
XR650R 31-degrees BTDC @ 3500 rpm