Motorcycle engine ignition system Honda XRV750 Africa Twin (1989-2003)

Ignition system — specifications
General information Firing order — Front (232°), Rear (488°) Spark plugs — see Chapter 1 Ignition timing XL600V-H to T (1987 to 1996) models At idle — 10° BTDC Full advance — 30° BTDC @ 4500 rpm XL600V-V to X (1997 to 1999) models At idle — 10° BTDC...

General information about ignition
All models are fitted with an electronic ignition system, which due to Its lack of mechanical parts is totally maintenance free. The system comprises the timing rotor, pulse generator coil(s). ignition control unit, ignition HT coils, and on...

Ignition system — check
Warning: The energy levels In electronic systems can be very high. On no account should the ignition be switched on whilst the plugs or plug caps are being held. Shocks from the HT circuit can be most unpleasant. Secondly, it is vital that the...

Ignition HT coils — check, removal and installation
Check 1. Remove the fuel tank (see Chapter 4). Check the coils visually for loose or damaged terminals, cracks and other damage. 2. Remove the seat (see Chapter 8). Disconnect the battery negative (-) lead. 3. Remove the coil being tested (see Steps...

Pulse generator coil(s) — check
Check 1. On XL and XRV750-L to N (1990 to 1992) models, remove the fuel tank (see Chapter 4). On XRV750-P models onwards (1993-on) remove the left-hand side panel. On XL650V remove the left-hand heat shield (see illustration). 4.1. Remove the heat...

Ignition control unit (ICU) — check, removal and installation
Check 1. If the tests shown in the preceding Sections have failed to isolate the cause of an ignition fault, it is possible that the ignition control unit is faulty. No details are available with which the unit can be tested on home workshop...

Ignition timing — general information and check
General information 1. Since no provision exists for adjusting the ignition timing and since no component is subject to mechanical wear, there is no need for regular checks; only if investigating a fault such as a loss of power or a misfire, should...

Throttle position sensor — check and replacement
Note: The throttle position sensor is fitted to XL600V-T to X (1997 to 1999) models, XL650V models, and XRV750-T models onwards (1996-on). Check 1. The throttle position sensor (TPS) is mounted on Hie right-hand side of the front cylinder...

Immobiliser system (HISS) — XL650V models
General information 1. Honda's HISS (Honda Ignition Security System) immobiliser is fitted to XL650V models as an anti-theft device. The system will only allow the machine to be started if the correct registered key is used to turn the ignition ON....